N8Programs/oeis-enhanced · Datasets at Hugging Face

id stringlengths 7 11	seq listlengths 1 347	keywords listlengths 1 8 ⌀
A255373	[ 0, 0, 0, 1, 18, 261, 3420, 42291, 503757, 5845383, 66525399, 745904151, 8264888316, 90700808526, 987461965116, 10678505242392, 114817381566435, 1228431892382460, 13086248073415290, 138875261344657400, 1468815363559657700, 15488131104999234000 ]	[ "nonn", "base", "easy" ]
A010066	[ 1, 2, 4, 8, 12, 16, 20, 24, 32, 36, 40, 44, 52, 56, 60, 64, 72, 80, 84, 92, 100, 104, 112, 120, 128, 132, 136, 140, 144, 152, 156, 160, 164, 172, 180, 184, 192, 200, 204, 212, 220, 228, 236, 244, 256, 260, 264, 272, 280,...	[ "nonn", "base" ]
A184428	[ 2, 7, 13, 21, 31, 44, 58, 74, 92, 112, 135, 159, 185, 213, 243, 275, 309, 346, 384, 424, 466, 510, 556, 604, 654, 706, 761, 817, 875, 935, 997, 1061, 1127, 1195, 1265, 1337, 1411, 1487, 1566, 1646, 1728, 1812, 1898, 1986, 2076, ...	[ "nonn" ]
A044878	[ 344, 345, 346, 347, 348, 349, 351, 359, 367, 375, 383, 391, 393, 394, 395, 396, 397, 398, 406, 407, 409, 410, 411, 412, 413, 414, 415, 417, 418, 419, 420, 421, 422, 423, 425, 426, 427, 428, 429, 430, 431, 433, 434, 435, 436 ]	[ "nonn", "base" ]
A280447	[ 176594, 281894, 371894, 446594, 1765940, 2818940, 2822594, 3718940, 3722594, 4465940, 17659400, 28189400, 28225940, 37189400, 37225940, 44659400 ]	[ "nonn", "base", "more" ]
A204470	[ 0, 1, 58, 676, 3486, 11963, 32134, 73294, 148718, 276373, 479632, 787986, 1237756, 1872809, 2745266, 3916220, 5456444, 7447107, 9980486, 13160678, 17104314, 21941271, 27815384, 34885162, 43324496, 53323377, 65088604, 78844500, 94833624, 113317483, 13457724...	[ "nonn", "easy" ]
A112229	[ 2, 4, 1, 2, 2, 4, 1, 4, 2, 8, 1, 2, 4, 28, 2, 11, 2, 4, 1, 4, 2, 32, 1, 3, 4, 40, 2, 14, 2, 4, 1, 37, 6, 138, 1, 2, 10, 40, 2, 5, 2, 16, 1, 16, 2, 26, 3, 4, 4, 10, 2, 20, 4, 10, 1, 7, 2, 50, 1, 2, ...	[ "nonn", "tabf" ]
A157718	[ 1, 11, 130, 91827, 42593758221, 2.0687260450168808e+21, 2.069711491137963e+43, 8.327694701292534e+86 ]	[ "frac", "nonn" ]
A390727	[ 1, 1, 28, 2700, 571536, 214326000, 125799886080, 106657796044800, 123488975062252800, 187327646047474750000, 3.606728080423541e+23, 8.594998378928247e+26, 2.4839977398531623e+30, 8.560829696851108e+33, 3.4689216250915893e+37 ]	[ "nonn", "new" ]
A192804	[ 1, 1, 1, 2, 3, 5, 9, 16, 29, 53, 97, 178, 327, 601, 1105, 2032, 3737, 6873, 12641, 23250, 42763, 78653, 144665, 266080, 489397, 900141, 1655617, 3045154, 5600911, 10301681, 18947745, 34850336, 64099761, 117897841, 216847937, 398845538 ]	[ "nonn", "easy" ]
A226956	[ 1, 1, 2, 2, 3, 5, 9, 15, 24, 38, 61, 99, 161, 261, 422, 682, 1103, 1785, 2889, 4675, 7564, 12238, 19801, 32039, 51841, 83881, 135722, 219602, 355323, 574925, 930249, 1505175, 2435424, 3940598, 6376021, 10316619, 16692641, 27009261, 43701902...	[ "nonn", "easy" ]
A111492	[ 1, 2, 1, 3, 3, 2, 4, 6, 8, 6, 5, 10, 20, 30, 24, 6, 15, 40, 90, 144, 120, 7, 21, 70, 210, 504, 840, 720, 8, 28, 112, 420, 1344, 3360, 5760, 5040, 9, 36, 168, 756, 3024, 10080, 25920, 45360, 40320, 10, 45, 240, 1260, 60...	[ "nonn", "tabl" ]
A141816	[ 160225, 160225, 456025, 456025, 801125, 801125, 801125, 801125, 1185665, 1185665, 1185665, 2280125, 4032145, 2280125, 4032145, 4005625, 6326125, 6456125, 6569225, 5226065, 4032145, 4005625, 4005625, 5928325, 6326125 ]	[ "nonn" ]
A059827	[ 1, 27, 216, 1000, 3375, 9261, 21952, 46656, 91125, 166375, 287496, 474552, 753571, 1157625, 1728000, 2515456, 3581577, 5000211, 6859000, 9261000, 12326391, 16194277, 21024576, 27000000, 34328125, 43243551, 54010152, 66923416, 82312875, 100544625, 122023936...	[ "nonn", "easy" ]
A064588	[ 0, 211341312, 67802350642790400, 1.9045158721552047e+25, 5.172093060532096e+33, 1.3924367720748604e+42, 3.740530975942368e+50, 1.0042749815812218e+59, 2.695953529728822e+67 ]	[ "nonn", "easy" ]
A195910	[ 0, 2, -2, 0, 2, -3, 0, 1, -6, 0, 1, -225, 0, 1, 8, 0, 1, 4, -1, 1, 3, -1, 1, 2, -2, 0, 2, -3, 0, 1, -6, 0, 1, -75, 0, 1, 8, 0, 1, 4, -1, 1, 3, -1, 1, 2, -2, 0, 2, -3, 0, 1, -6, 0, 1, -45, 0, 1, 9, 0...	[ "sign", "easy" ]
A281903	[ 0, 1, 3, 4, 10, 16, 18, 19, 33, 54, 75, 95, 268, 407, 539, 547, 661, 1445, 1559, 2634, 3316, 7047, 10299, 10911, 19528, 29603, 38668 ]	[ "nonn", "more", "hard" ]
A008081	[ 1, 4, 12, 24, 36, 61, 101, 133, 156, 204, 256, 314, 391, 444, 492, 589, 686, 760, 843, 951, 1063, 1157, 1285, 1416, 1461, 1630, 1841, 1903, 2058, 2214, 2347, 2555, 2713, 2901, 3024, 3172, 3446, 3655, 3804, 4002, 4213, 4391, 4684, ...	[ "nonn" ]
A246570	[ 1, 2, 15, 116, 1001, 9322, 89363, 881376, 8860677, 90407666, 933482527, 9731366060, 102259648701, 1081810639970, 11510355762339, 123077391281248, 1321739147949829, 14248409211657754, 154118033900091140, 1672053762899099600, 18189628173538580000, 198362957005290440000 ]	[ "nonn" ]
A325258	[ 1, 1, 1, 1, 3, 7, 28, 171, 2624, 172613, 139584150, 6837485347187, 266437138079023500000, 5.080094713792224e+32, 3.7745517525533094e+52, 5.347426383812697e+84 ]	[ "nonn" ]
A169861	[ 0, 26, 51, 77, 102, 127, 153, 178, 204, 229, 254, 280, 305, 331, 356, 381, 407, 432, 458, 483, 508, 534, 559, 585, 610, 635, 661, 686, 712, 737, 762, 788, 813, 839, 864, 889, 915, 940, 966, 991, 1016, 1042, 1067, 1093, 1118, 1...	[ "nonn", "easy" ]
A107866	[ 1, -1, -1, -7, -77, -1145, -21410, -481683, -12655196, -379998938, -12830421321, -480984691304, -19816691903510, -889846823832596, -43247136243424264, -2261480610502143000, -126596066994553500000, -7.55315437024418e+21, -4.784564784968213e+23 ]	[ "sign" ]
A115584	[ 1, 0, 1, 1, 1, 1, 2, 1, 3, 2, 4, 3, 6, 4, 7, 7, 8, 8, 12, 9, 15, 14, 17, 18, 24, 21, 29, 29, 35, 35, 46, 42, 56, 54, 65, 67, 81, 77, 98, 95, 115, 114, 139, 135, 164, 165, 190, 195, 230, 225, 272, 271, 313, 321,...	[ "easy", "nonn" ]
A176794	[ 1, 1, 1, 1, 17, 1, 1, 129, 129, 1, 1, 833, 1025, 833, 1, 1, 5121, 6657, 6657, 5121, 1, 1, 30977, 40961, 43265, 40961, 30977, 1, 1, 186369, 247809, 266241, 266241, 247809, 186369, 1, 1, 1119233, 1490945, 1610753, 1638401, 1610753, 14...	[ "nonn", "tabl" ]
A259650	[ 5, 3, 11, 7, 17, 7, 23, 13, 29, 11, 7, 19, 41, 11, 47, 17, 53, 19, 59, 31, 13, 23, 71, 37, 13, 5, 83, 43, 89, 31, 19, 11, 101, 13, 107, 37, 113, 29, 17, 61, 7, 43, 131, 67, 137, 47, 13, 73, 149, 19, 31, 79, 23, ...	[ "nonn" ]
A113678	[ 1, 0, 1, 2, 0, 1, 2, 2, 0, 1, 6, 2, 2, 0, 1, 10, 6, 2, 2, 0, 1, 22, 10, 6, 2, 2, 0, 1, 42, 22, 10, 6, 2, 2, 0, 1, 86, 42, 22, 10, 6, 2, 2, 0, 1, 170, 86, 42, 22, 10, 6, 2, 2, 0, 1, 342, 170, 86, 42, ...	[ "easy", "nonn", "tabl" ]
A291602	[ 1105, 13981, 68101, 137149, 149281, 158369, 266305, 285541, 423793, 617093, 625921, 852841, 1052503, 1052929, 1104349, 1128121, 1306801, 1746289, 2940337, 3048841, 3828001, 4072729, 4154161, 4209661, 4682833, 6183601, 6236473, 6617929, 7803769, 9106141, 11...	[ "nonn" ]
A056439	[ 1, 1, 1, 2, 2, 5, 4, 10, 9, 22, 14, 78, 36, 124, 180, 343, 260, 1329, 804, 3732, 4428, 9742, 8384, 47364, 33778, 108292, 138756, 408244, 331184, 2251604, 1155734 ]	[ "nonn" ]
A103269	[ 1, 12, 1213, 1213121, 1213121121312, 1.2131211213121213e+23, 1.2131211213121214e+43, 1.2131211213121214e+80 ]	[ "nonn" ]
A243592	[ 1, 15, 33, 35, 45, 51, 65, 69, 77, 85, 87, 91, 95, 99, 105, 115, 119, 123, 133, 135, 141, 143, 145, 153, 159, 161, 165, 175, 177, 185, 187, 195, 207, 209, 213, 215, 217, 221, 231, 235, 245, 247, 249, 255, 259, 261, 265, 26...	[ "nonn" ]
A145117	[ 1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2047, 4091, 8175, 16335, 32639, 65215, 130303, 260351, 520191, 1039359, 2076672, 4149254, 8290334, 16564334, 33096030, 66126846, 132123390, 263986430, 527452670, 1053865982, 2105655293, 4207161333, 8406032...	[ "nonn", "easy" ]
A362135	[ 1, 3, 5, 7, 9, 12, 15, 17, 21, 25, 29, 31, 36, 41, 47, 52, 58, 64, 69, 74, 82, 87, 92, 100, 106, 112, 120, 128, 138, 145, 153, 160, 168, 176, 183, 189, 198, 209, 220, 233, 242, 252, 265, 277, 285, 294, 309, 325, 338, 3...	[ "nonn" ]
A157000	[ 2, 3, 4, 2, 5, 5, 6, 9, 2, 7, 14, 7, 8, 20, 16, 2, 9, 27, 30, 9, 10, 35, 50, 25, 2, 11, 44, 77, 55, 11, 12, 54, 112, 105, 36, 2, 13, 65, 156, 182, 91, 13, 14, 77, 210, 294, 196, 49, 2, 15, 90, 275, 450, 378, ...	[ "nonn", "easy", "tabf" ]
A355180	[ 0, 0, 0, 0, 4, 10, 20, 35, 6776, 60564, 352920, 1663365, 126625180, 2361079006, 27334747804, 245495250455, 11174333090480, 328952158255400, 6245314009946736, 90576650639967380, 3209305759254634500, 122557203047084970000, 3.3650686654503e+21 ]	[ "nonn" ]
A281978	[ 1, 4, 2, 6, 3, 15, 5, 20, 10, 40, 8, 24, 12, 36, 9, 54, 18, 90, 30, 120, 60, 180, 45, 135, 27, 162, 81, 324, 108, 216, 72, 144, 16, 64, 32, 96, 48, 240, 80, 320, 160, 640, 128, 384, 192, 576, 288, 864, 432, 1296, 648...	[ "nonn" ]
A374117	[ 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1...	[ "nonn" ]
A199261	[ 0, 0, 0, 0, 0, 0, 0, 3, 3, 0, 0, 0, 0, 0, 0, 1, 0, 18, 18, 0, 1, 0, 36, 0, 0, 0, 36, 0, 0, 0, 114, 0, 0, 114, 0, 0, 0, 0, 0, 1240, 0, 1240, 0, 0, 0, 0, 449, 713, 0, 5381, 5381, 0, 713, 449, 0, 0, 0, 0, ...	[ "nonn", "tabl" ]
A346512	[ 2, 3, 5, 7, 0, 2, 6, 8, 1, 11, 2, 4, 5, 7, 3, 6, 12, 7, 1, 6, 4, 14, 11, 1, 14, 0, 2, 6, 8, 3, 4, 3, 5, 11, 12, 5, 3, 4, 0, 5, 15, 8, 9, 11, 15, 1, 2, 3, 7, 9, 2, 8, 7, 6, 0, 7, 13, 4, 2, 11, 9, ...	[ "base", "nonn", "less" ]
A371760	[ 33, 1093, 73, 17, 97, 11, 193, 17, 89, 11, 193, 73, 673, 13, 257, 33, 41, 15, 97, 65, 1009, 13, 97, 149, 190, 23, 401, 41, 281, 31, 133, 17, 1033, 31, 89, 13, 6, 59, 241, 157, 1217, 91, 145, 37, 937, 29, 1289, 73, 97, ...	[ "nonn" ]
A119445	[ 1, 1, 1, 1, 1, 3, 7, 13, 27, 63, 109, 207, 331, 553, 931, 1531, 2527, 4093, 6673, 10831, 17563, 28561, 46227, 74883, 121219, 196239, 317607, 514047, 831823, 1346041, 2178079, 3524323, 5702619, 9227161, 14930019, 24157471, 39087823, 63245551 ]	[ "nonn" ]
A338311	[ 4, 14, 28, 164, 434, 574, 1106, 5084, 5572, 7874, 8386, 13454, 13694, 19964, 21988, 33166, 39934, 40132, 95122, 103886, 113918, 148994, 157604, 215326, 216124, 256004, 277564, 306404, 341342, 366148, 571154, 660674, 662494, 764956, 771374, 876644...	[ "nonn" ]
A334515	[ 2, 2, 3, 2, 30, 18, 126, 2, 504, 430, 979, 18, 443, 2198, 6820, 976, 78812, 7812, 158080, 142580, 248493, 122870, 1630792, 18, 2777040, 4511, 81688176, 868, 463347935, 5921860, 1211061438, 26636800, 598772163, 40012662, 145710075, 135322524, 40...	[ "nonn" ]
A208881	[ 1, 2, 30, 560, 11550, 252252, 5717712, 133024320, 3155170590, 75957810500, 1850332263780, 45508998487680, 1128243920840400, 28159366024288800, 706857555303576000, 17831659928458211000, 451781821468671700000, 1.1489952898943726e+22, 2.93206575828601e+23 ]	[ "nonn", "walk", "easy" ]
A109832	[ 1, 2, 2, 4, 6, 6, 8, 6, 6, 14, 18, 12, 12, 18, 12, 18, 24, 30, 34, 30, 6, 12, 42, 30, 30, 30, 18, 48, 30, 30, 30, 66, 36, 48, 24, 30, 12, 54, 42, 78, 54, 60, 42, 48, 60, 104, 72, 30, 66, 60, 66, 30, 60, 30, 1...	[ "nonn" ]
A293473	[ 1, 1, 2, 4, 6, 4, 12, 30, 24, 8, 52, 144, 156, 80, 16, 240, 760, 1020, 680, 240, 32, 1188, 4440, 6720, 5640, 2640, 672, 64, 6804, 26712, 47040, 45640, 26880, 9408, 1792, 128, 38960, 175392, 338016, 376320, 261520, 115584, 31360, 4...	[ "sign", "tabl" ]
A289910	[ 2, 2, 2, 2, 10, 90, 4410, 2033010, 47753371890, 536047310324601800, 1.4614650582225405e+29, 4.614615052982976e+47, 4.090661168719129e+77 ]	[ "nonn", "frac" ]
A196605	[ 2, 5, 8, 5, 9, 8, 5, 8, 2, 2, 5, 4, 1, 8, 9, 4, 9, 0, 3, 0, 4, 4, 8, 2, 6, 1, 9, 5, 6, 1, 5, 2, 0, 2, 8, 1, 3, 3, 8, 5, 5, 2, 9, 6, 5, 3, 1, 6, 8, 2, 5, 7, 5, 3, 4, 3, 8, 8, 1, 7, 2, 8, 7, 4...	[ "nonn", "cons" ]
A090408	[ 1, 36, 496, 8256, 130816, 2098176, 33550336, 536887296, 8589869056, 137439215616, 2199022206976, 35184376283136, 562949936644096, 9007199321849856, 144115187807420420, 2305843010287436000, 36893488143124136000, 590295810375885500000, 9.444732965670571e+21 ]	[ "easy", "nonn" ]
A352500	[ 1, -2, 3, -6, 11, -20, 36, -62, 107, -186, 319, -544, 924, -1560, 2628, -4416, 7393, -12346, 20571, -34198, 56749, -94004, 155448, -256668, 423206, -696884, 1146158, -1882928, 3089996, -5065826, 8297281, -13578050, 22201265, -36272398, 59217684, ...	[ "sign" ]
A117740	[ 2, 3, 5, 13, 89, 233, 514229 ]	[ "nonn" ]
A354308	[ 1, 1, 4, 17, 88, 503, 3071, 19372, 124575, 813020, 5361539, 35662727, 238864272, 1609398564 ]	[ "nonn", "hard", "more" ]
A062689	[ 0, 1, 121, 12321, 4, 256, 169, 576, 289, 9, 8100, 2116, 361201, 3136, 181476, 1156, 16, 101761, 5184, 281961, 2209, 9216, 1225, 182329, 3249, 25, 292681, 192721, 8281, 1296, 2304, 183184, 5329, 343396, 203401, 4356, 36, 223729, 173889, 73...	[ "base", "easy", "nonn" ]
A384118	[ 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 3, 4, 3, 1, 1, 6, 5, 5, 6, 1, 1, 10, 12, 51, 12, 10, 1, 1, 15, 37, 97, 97, 37, 15, 1, 1, 21, 98, 218, 368, 218, 98, 21, 1, 1, 28, 219, 519, 2229, 2229, 519, 219, 28, 1, 1, ...	[ "nonn", "tabl" ]
A085382	[ 5, 7, 10, 16, 16, 19, 22, 34, 36, 36, 40, 46, 50, 70, 66, 88, 66, 78, 78, 76, 92, 124, 100, 100, 106, 120, 160, 112, 120, 134, 144, 154, 162, 186, 156, 170, 166, 250, 216, 268, 186, 210, 196, 204, 210, 218, 260, 340, 248...	[ "easy", "nonn" ]
A279183	[ 1, 2, 12, 152, 222, 362, 432, 992, 1517, 2532, 2567, 8472, 34732, 44092, 69312, 82752, 105852, 114392, 128672, 336992, 350082, 393132, 393552, 462747, 497712, 559872, 665817, 714502, 931432, 968952, 1126602, 1281867, 1389337, 1449992, 1638712, 16...	[ "nonn" ]
A060619	[ 0, 1, 22, 52224 ]	[ "nonn" ]
A104354	[ 1, 1, 2, 4, 16, 48, 288, 576, 1728, 8640, 86400, 259200, 3110400, 21772800, 108864000, 217728000, 3483648000, 10450944000, 188116992000, 940584960000, 6584094720000, 72425041920000, 1593350922240000, 4780052766720000, 23900263833600000, 310703429836800000 ]	[ "nonn" ]
A314755	[ 1, 5, 9, 13, 19, 23, 27, 34, 39, 41, 45, 51, 55, 59, 66, 71, 75, 79, 83, 87, 91, 98, 103, 107, 113, 117, 119, 123, 130, 135, 139, 145, 149, 153, 157, 162, 167, 171, 177, 181, 185, 191, 196, 199, 203, 209, 213, 217, 223, ...	[ "nonn" ]
A016340	[ 1, 0, 1, 0, 0, 0, -1, 0, -1, 0, 0, 0, 1, 0, 1, 0, 0, 0, -1, 0, -1, 0, 0, 0, 1, 0, 0, 0, -1, 0, -1, 0, 0, 0, 1, 0, 1, 0, 0, 0, -1, 0, -1, 0, 0, 0, 1, 0, 1 ]	[ "sign", "fini", "full" ]
A140136	[ 1, 1, 1, 1, 7, 7, 1, 1, 20, 75, 75, 20, 1, 1, 42, 364, 1001, 1001, 364, 42, 1, 1, 75, 1212, 6720, 15288, 15288, 6720, 1212, 75, 1, 1, 121, 3223, 30723, 127908, 255816, 255816, 127908, 30723, 3223, 121, 1, 1, 182, 7371, 10953...	[ "easy", "nonn", "tabf" ]
A107135	[ 5, 11, 29, 59, 101, 131, 149, 179, 251, 269, 389, 419, 461, 491, 509, 659, 701, 821, 941, 971, 1019, 1061, 1091, 1109, 1181, 1229, 1259, 1301, 1451, 1499, 1571, 1619, 1709, 1811, 1901, 1931, 1949, 1979, 2069, 2099, 2141, 2309, 2339,...	[ "nonn", "easy" ]
A304974	[ 0, 0, 0, 0, 1, 2, 9, 16, 53, 90, 265, 440, 1221, 2002, 5369, 8736, 22933, 37130, 96105, 155080, 397541, 640002, 1629529, 2619056, 6636213, 10653370, 26899145, 43144920, 108659461, 174174002, 437826489, 701478976, 1760871893, 2820264810, 7072185385,...	[ "nonn", "easy" ]
A238834	[ 0, 1, 1, 2, 2, 5, 4, 13, 6, 30, 11, 69, 15, 148, 28, 320, 34, 661, 64, 1380, 75, 2805, 144, 5743, 159, 11576, 307, 23444, 335, 47075, 655, 94777, 689, 189923, 1350, 381162, 1414, 763077, 2794, 1528884, 2869, 3059257, 5674, 6124113...	[ "nonn" ]
A224734	[ 1, 4, 26, 216, 2075, 21916, 247326, 2930216, 36028117, 456089076, 5910983050, 78100285784, 1048696065394, 14275198859304, 196610207633100, 2735542102308752, 38400942393884060, 543307627503591400, 7740605626606127000, 110970838624540460000, 1.5998346764057932e+21 ]	[ "nonn" ]
A281030	[ 0, 12, 532, 2324, 9854, 38972, 146606, 533340, 1896352, 6625144, 22832024, 77840640, 263040538, 882310796, 2941006434, 9750587480, 32176182992, 105744971236, 346270006718, 1130247359072, 3678591411860, 11941616925216 ]	[ "nonn" ]
A227905	[ 741751, 1024651, 5481451, 31150351, 109437751, 139952671, 178482151, 284301751, 383425351, 395044651, 407282851, 417027451, 498706651, 582799951, 612816751, 620072251, 652969351, 738820351, 977755351, 1126587151, 1204176751, 1397357851, 1588247851, 1789167931 ]	[ "nonn" ]
A131264	[ 1, 269, 41837, 36626159, 154578947, 2155054465, 19410890423, 30691222355, 247555091527, 2201220228533, 227735225320519, 478444326378215 ]	[ "nonn", "more" ]
A150750	[ 1, 2, 8, 29, 127, 526, 2420, 10624, 49914, 226414, 1076960, 4987976, 23924425, 112344643, 542087643, 2571154955, 12461595847, 59550464104, 289620932455, 1392050985731, 6788905487071, 32780909125398, 160230657330042, 776576750273720, 3802994157929216, 184883487951331...	[ "nonn", "walk" ]
A059468	[ 582, 1182, 1194, 2382, 2982, 2994, 3594, 4158, 4182, 4776, 4780, 4782, 5718, 5784, 5802, 5808, 5826, 5844, 5862, 5898, 5946, 5982, 6582, 7782, 8382, 8394, 8958, 8994, 9582, 10182, 10194, 10794, 11382, 11802, 11838, 11874, 11922, 11946, 1195...	[ "base", "nonn" ]
A113328	[ 1, 3, 18, 117, 801, 5724, 42633, 331911, 2717874, 23620329, 220260789, 2228505372, 24681015981, 300506801715, 4017984855786, 58675338993069, 928673101727001, 15804592586240220, 287174716511520030, 5538727108037507000 ]	[ "nonn" ]
A307577	[ 0, 0, 1, 4, 13, 40, 119, 348, 1011, 2928, 8471, 24516, 71023, 206024, 598513, 1741332, 5073733, 14804160, 43252855, 126526756, 370551287, 1086365336, 3188090101, 9364411252, 27529374201, 80993754352, 238463467529, 702563144252, 2071200546129, 6109619428824 ]	[ "nonn" ]
A328310	[ -1, -1, 0, -1, 0, -1, -1, -1, 0, -1, 2, -1, 1, 2, 1, -1, -1, -1, 1, 0, 0, -1, -1, -1, 0, 0, 3, -1, 0, -1, -1, 0, 0, 1, 0, -1, 0, 3, -1, -1, 0, -1, 2, -1, 1, -1, 0, -1, 0, 1, 1, -1, 1, 3, -1, 0, 0, -1, ...	[ "sign" ]
A028347	[ 0, 5, 12, 21, 32, 45, 60, 77, 96, 117, 140, 165, 192, 221, 252, 285, 320, 357, 396, 437, 480, 525, 572, 621, 672, 725, 780, 837, 896, 957, 1020, 1085, 1152, 1221, 1292, 1365, 1440, 1517, 1596, 1677, 1760, 1845, 1932, 2021, 2112,...	[ "nonn", "easy" ]
A093958	[ 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 1, 0, 0...	[ "nonn" ]
A114022	[ 0, 1, 3, 9, 10, 11, 12, 13, 14, 81, 100, 121, 144, 169, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207, 208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223, 224, 225, 226, 227, 228, 2...	[ "easy", "nonn" ]
A232001	[ 64, 800, 8464, 80511, 674041, 6257919, 59351616, 552794085, 5097817201, 47195896740, 438136762561, 4064453149200, 37678579570944, 349334350156955, 3239408289640000, 30038648311142380, 278531798728132160 ]	[ "nonn" ]
A134109	[ 1, 1, 0, 2, 0, 0, 2, 1, 0, 0, 2, 0, 1, 0, 1, 0, 0, 1, 1, 1, 0, 0, 1, 0, 1, 2, 1, 3, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 3, 1, 0, 0, 0, 1, 1, 0, 3, 2, 1, 0, 0, 0, 2, 1, 2, 1, 0, 0, 0, 2, 1, 0, 2, 1...	[ "nonn" ]
A349418	[ 16, 28, 46, 71, 104, 146, 198, 261, 336, 424, 526, 643, 776, 926, 1094, 1281, 1488, 1716, 1966, 2239, 2536, 2858, 3206, 3581, 3984, 4416, 4878, 5371, 5896, 6454, 7046, 7673, 8336, 9036, 9774, 10551, 11368, 12226, 13126, 14069, 15056, ...	[ "nonn", "easy" ]
A218626	[ 0, 0, 0, 0, 0, 1, 13, 18, 43, 69, 115, 140, 243, 302, 402, 539, 726, 896, 1183, 1458, 1873, 2356, 2923, 3572, 4489, 5514, 6738, 8231, 10057, 12164, 14809, 17854, 21541, 25912, 31053, 37180, 44523, 53074, 63137, 75017, 89046, 105408, ...	[ "nonn" ]
A263345	[ 1, 1, 2, 4, 7, 14, 22, 40, 65, 107, 176, 282, 448, 705, 1101, 1701, 2611, 3977, 6021, 9048, 13527, 20102, 29720, 43712, 63997, 93259, 135317, 195539, 281440, 403559, 576568, 820888, 1164826, 1647583, 2323169, 3266041, 4578305, 6399990, 8922...	[ "nonn" ]
A211404	[ 65, 603, 12208, 18803, 18841, 25207, 46115, 49885 ]	[ "nonn", "base", "more" ]
A312471	[ 1, 4, 8, 14, 18, 22, 26, 30, 34, 38, 46, 46, 58, 54, 64, 62, 70, 70, 84, 78, 98, 86, 102, 94, 106, 102, 122, 110, 138, 118, 140, 126, 142, 134, 160, 142, 178, 150, 178, 158, 178, 166, 198, 174, 218, 182, 216, 190, 214, ...	[ "nonn" ]
A027671	[ 1, 3, 6, 10, 21, 39, 92, 198, 498, 1219, 3210, 8418, 22913, 62415, 173088, 481598, 1351983, 3808083, 10781954, 30615354, 87230157, 249144711, 713387076, 2046856566, 5884491500, 16946569371, 48883660146, 141217160458, 408519019449, 1183289542815 ]	[ "nonn", "easy", "nice" ]
A349883	[ 1, 1, 5, 60, 1242, 41241, 2033683, 141318208, 13262986788, 1624337451945, 252725477615989, 48858277079478160, 11523986801592238000, 3.265676705193282e+21, 1.0973367664683091e+24, 4.322917953850946e+26, 1.976903200463191e+29 ]	[ "nonn" ]
A093983	[ 0, 0, 0, 0, 4, 54, 1052, 14611, 181948, 2096211, 22788376, 238482555, 2433024862, 24386079471, 241344901528, 2366884988610, 23059199264485, 223571124198381 ]	[ "nonn", "more" ]
A309941	[ 1, 2, 3, 4, 4, 4, 7, 8, 6, 4, 8, 6, 5, 7, 7, 7, 10, 4, 11, 10, 8, 6, 13, 13, 11, 9, 13, 10, 15, 4, 13, 12, 13, 10, 18, 11, 8, 10, 16, 9, 16, 6, 15, 18, 9, 5, 19, 20, 14, 15, 17, 8, 16, 12, 18, 10, 10, 5...	[ "nonn", "hard" ]
A296830	[ 8, 31, 132, 573, 2441, 10485, 44951, 192730, 826498, 3544082, 15198081, 65172170, 279476178, 1198478073, 5139392105, 22039266498, 94511169171, 405291983276, 1738017670081, 7453162043129, 31961457203015, 137060728087293 ]	[ "nonn" ]
A314141	[ 1, 5, 11, 16, 22, 26, 32, 37, 43, 48, 53, 59, 64, 70, 74, 80, 85, 91, 96, 101, 107, 112, 118, 122, 128, 133, 139, 144, 149, 155, 160, 166, 170, 176, 181, 187, 192, 197, 203, 208, 214, 218, 224, 229, 235, 240, 245, 251, 2...	[ "nonn" ]
A275999	[ 0, 3, 1, 5, 10, 19, 15, 22, 31, 51, 61, 37, 82, 71, 126, 96, 92, 136, 162, 187, 206, 276, 191, 261, 236, 247, 317, 302, 401, 292, 422, 547, 456, 544, 551, 612, 591, 577, 521, 666, 742, 726, 682, 877, 796, 1052, 961, 1046, ...	[ "nonn" ]
A109935	[ 1, 2, 6, 12, 60, 60, 420, 840, 2520, 2520, 27720, 27720, 859320, 35232120, 598946040, 36535708440, 2594035299240, 23346317693160, 303502130011080, 303502130011080, 303502130011080, 303502130011080, 1214008520044320, 1214008520044320, 1214008520044320 ]	[ "base", "nonn" ]
A349691	[ 1, 2, 9, 176, 155, 2450, 21500, 118993, 767700, 12409639, 56024339, 857777653, 8648737607 ]	[ "nonn", "more" ]
A088379	[ 1, 16, 81, 16, 625, 16, 2401, 16, 81, 16, 14641, 16, 28561, 16, 81, 16, 83521, 16, 130321, 16, 81, 16, 279841, 16, 625, 16, 81, 16, 707281, 16, 923521, 16, 81, 16, 625, 16, 1874161, 16, 81, 16, 2825761, 16, 3418801, 16, 81, 16...	[ "nonn", "easy" ]
A141405	[ 2, 23, 101, 1423, 10243, 102043, 1234657, 10243567, 100234657, 1123465789, 10123457689, 100123456789, 1001233458679, 10011223456879, 100122334546789, 1001122334546879 ]	[ "more", "nonn", "base" ]
A214305	[ 341, 1387, 2047, 2701, 3277, 4033, 4369, 4681, 5461, 7957, 8321, 10261, 13747, 14491, 15709, 18721, 19951, 23377, 31417, 31609, 31621, 35333, 42799, 49141, 49981, 60701, 60787, 65077, 65281, 80581, 83333, 85489, 88357, 90751, 104653, 123251, 12...	[ "nonn" ]
A260248	[ 48, 99, 99, 256, 213, 256, 635, 551, 551, 635, 1598, 1235, 1476, 1235, 1598, 4027, 3026, 3287, 3287, 3026, 4027, 10110, 7822, 8242, 5733, 8242, 7822, 10110, 25421, 18837, 22944, 14045, 14045, 22944, 18837, 25421, 63884, 45114, 56634, 4214...	[ "nonn", "tabl" ]
A353275	[ 1, 1, 1, 4, 1, 3, 1, 8, 9, 5, 1, 12, 1, 7, 5, 16, 1, 9, 1, 4, 7, 11, 1, 24, 25, 13, 27, 4, 1, 15, 1, 32, 11, 17, 7, 36, 1, 19, 13, 8, 1, 7, 1, 4, 45, 23, 1, 16, 49, 25, 17, 4, 1, 27, 11, 8, 19, 29, 1,...	[ "nonn", "less" ]
A020313	[ 247, 403, 559, 589, 817, 1333, 1661, 3785, 5461, 6533, 7471, 7483, 7657, 8401, 10621, 14981, 17329, 24341, 25327, 28009, 32477, 38503, 42661, 49051, 49141, 65311, 74089, 74803, 79003, 87949, 95981, 96049, 102719, 104653, 109061, 111361, 112471,...	[ "nonn" ]
A015954	[ 1, 2, 10, 50, 250, 1250, 2810, 5050, 6250, 14050, 25250, 31250, 40210, 70250, 126250, 156250, 201050, 351250, 510050, 631250, 650050, 781250, 789610, 1005250, 1265050, 1419050, 1756250, 2550250, 3156250, 3250250, 3906250, 3948050, 5026250, 6325250, ...	[ "nonn" ]
A099643	[ 3, 2, 5, 1, 2, 1, 3, 2, 1, 2, 1, 13, 897, 2, 8, 1, 2, 1, 1, 15, 2, 3, 2, 1, 1, 2, 1, 11, 2, 1117, 1, 12, 2, 1, 1, 2, 1, 18, 4, 187, 22, 1, 3, 3, 3, 14, 1, 2, 3, 1, 78, 3, 1, 1, 65, 3, 1, 4, 2, 2, ...	[ "cofr", "nonn" ]
A187544	[ 1, 2, 38, 1310, 66254, 4428782, 368444078, 36691056110, 4256199137774, 563672814445742, 83921091641375920, 13875375391723854000, 2.522552600160249e+21, 5.001415813306264e+23, 1.0740009703719957e+26 ]	[ "nonn", "easy" ]

A255373

[ 0, 0, 0, 1, 18, 261, 3420, 42291, 503757, 5845383, 66525399, 745904151, 8264888316, 90700808526, 987461965116, 10678505242392, 114817381566435, 1228431892382460, 13086248073415290, 138875261344657400, 1468815363559657700, 15488131104999234000 ]

[ "nonn", "base", "easy" ]

A010066

[ 1, 2, 4, 8, 12, 16, 20, 24, 32, 36, 40, 44, 52, 56, 60, 64, 72, 80, 84, 92, 100, 104, 112, 120, 128, 132, 136, 140, 144, 152, 156, 160, 164, 172, 180, 184, 192, 200, 204, 212, 220, 228, 236, 244, 256, 260, 264, 272, 280,...

[ "nonn", "base" ]

A184428

[ 2, 7, 13, 21, 31, 44, 58, 74, 92, 112, 135, 159, 185, 213, 243, 275, 309, 346, 384, 424, 466, 510, 556, 604, 654, 706, 761, 817, 875, 935, 997, 1061, 1127, 1195, 1265, 1337, 1411, 1487, 1566, 1646, 1728, 1812, 1898, 1986, 2076, ...

[ "nonn" ]

A044878

[ 344, 345, 346, 347, 348, 349, 351, 359, 367, 375, 383, 391, 393, 394, 395, 396, 397, 398, 406, 407, 409, 410, 411, 412, 413, 414, 415, 417, 418, 419, 420, 421, 422, 423, 425, 426, 427, 428, 429, 430, 431, 433, 434, 435, 436 ]

[ "nonn", "base" ]

A280447

[ 176594, 281894, 371894, 446594, 1765940, 2818940, 2822594, 3718940, 3722594, 4465940, 17659400, 28189400, 28225940, 37189400, 37225940, 44659400 ]

[ "nonn", "base", "more" ]

A204470

[ 0, 1, 58, 676, 3486, 11963, 32134, 73294, 148718, 276373, 479632, 787986, 1237756, 1872809, 2745266, 3916220, 5456444, 7447107, 9980486, 13160678, 17104314, 21941271, 27815384, 34885162, 43324496, 53323377, 65088604, 78844500, 94833624, 113317483, 13457724...

[ "nonn", "easy" ]

A112229

[ 2, 4, 1, 2, 2, 4, 1, 4, 2, 8, 1, 2, 4, 28, 2, 11, 2, 4, 1, 4, 2, 32, 1, 3, 4, 40, 2, 14, 2, 4, 1, 37, 6, 138, 1, 2, 10, 40, 2, 5, 2, 16, 1, 16, 2, 26, 3, 4, 4, 10, 2, 20, 4, 10, 1, 7, 2, 50, 1, 2, ...

[ "nonn", "tabf" ]

A157718

[ 1, 11, 130, 91827, 42593758221, 2.0687260450168808e+21, 2.069711491137963e+43, 8.327694701292534e+86 ]

[ "frac", "nonn" ]

A390727

[ 1, 1, 28, 2700, 571536, 214326000, 125799886080, 106657796044800, 123488975062252800, 187327646047474750000, 3.606728080423541e+23, 8.594998378928247e+26, 2.4839977398531623e+30, 8.560829696851108e+33, 3.4689216250915893e+37 ]

[ "nonn", "new" ]

A192804

[ 1, 1, 1, 2, 3, 5, 9, 16, 29, 53, 97, 178, 327, 601, 1105, 2032, 3737, 6873, 12641, 23250, 42763, 78653, 144665, 266080, 489397, 900141, 1655617, 3045154, 5600911, 10301681, 18947745, 34850336, 64099761, 117897841, 216847937, 398845538 ]

[ "nonn", "easy" ]

A226956

[ 1, 1, 2, 2, 3, 5, 9, 15, 24, 38, 61, 99, 161, 261, 422, 682, 1103, 1785, 2889, 4675, 7564, 12238, 19801, 32039, 51841, 83881, 135722, 219602, 355323, 574925, 930249, 1505175, 2435424, 3940598, 6376021, 10316619, 16692641, 27009261, 43701902...

[ "nonn", "easy" ]

A111492

[ 1, 2, 1, 3, 3, 2, 4, 6, 8, 6, 5, 10, 20, 30, 24, 6, 15, 40, 90, 144, 120, 7, 21, 70, 210, 504, 840, 720, 8, 28, 112, 420, 1344, 3360, 5760, 5040, 9, 36, 168, 756, 3024, 10080, 25920, 45360, 40320, 10, 45, 240, 1260, 60...

[ "nonn", "tabl" ]

A141816

[ 160225, 160225, 456025, 456025, 801125, 801125, 801125, 801125, 1185665, 1185665, 1185665, 2280125, 4032145, 2280125, 4032145, 4005625, 6326125, 6456125, 6569225, 5226065, 4032145, 4005625, 4005625, 5928325, 6326125 ]

[ "nonn" ]

A059827

[ 1, 27, 216, 1000, 3375, 9261, 21952, 46656, 91125, 166375, 287496, 474552, 753571, 1157625, 1728000, 2515456, 3581577, 5000211, 6859000, 9261000, 12326391, 16194277, 21024576, 27000000, 34328125, 43243551, 54010152, 66923416, 82312875, 100544625, 122023936...

[ "nonn", "easy" ]

A064588

[ 0, 211341312, 67802350642790400, 1.9045158721552047e+25, 5.172093060532096e+33, 1.3924367720748604e+42, 3.740530975942368e+50, 1.0042749815812218e+59, 2.695953529728822e+67 ]

[ "nonn", "easy" ]

A195910

[ 0, 2, -2, 0, 2, -3, 0, 1, -6, 0, 1, -225, 0, 1, 8, 0, 1, 4, -1, 1, 3, -1, 1, 2, -2, 0, 2, -3, 0, 1, -6, 0, 1, -75, 0, 1, 8, 0, 1, 4, -1, 1, 3, -1, 1, 2, -2, 0, 2, -3, 0, 1, -6, 0, 1, -45, 0, 1, 9, 0...

[ "sign", "easy" ]

A281903

[ 0, 1, 3, 4, 10, 16, 18, 19, 33, 54, 75, 95, 268, 407, 539, 547, 661, 1445, 1559, 2634, 3316, 7047, 10299, 10911, 19528, 29603, 38668 ]

[ "nonn", "more", "hard" ]

A008081

[ 1, 4, 12, 24, 36, 61, 101, 133, 156, 204, 256, 314, 391, 444, 492, 589, 686, 760, 843, 951, 1063, 1157, 1285, 1416, 1461, 1630, 1841, 1903, 2058, 2214, 2347, 2555, 2713, 2901, 3024, 3172, 3446, 3655, 3804, 4002, 4213, 4391, 4684, ...

[ "nonn" ]

A246570

[ 1, 2, 15, 116, 1001, 9322, 89363, 881376, 8860677, 90407666, 933482527, 9731366060, 102259648701, 1081810639970, 11510355762339, 123077391281248, 1321739147949829, 14248409211657754, 154118033900091140, 1672053762899099600, 18189628173538580000, 198362957005290440000 ]

[ "nonn" ]

A325258

[ 1, 1, 1, 1, 3, 7, 28, 171, 2624, 172613, 139584150, 6837485347187, 266437138079023500000, 5.080094713792224e+32, 3.7745517525533094e+52, 5.347426383812697e+84 ]

[ "nonn" ]

A169861

[ 0, 26, 51, 77, 102, 127, 153, 178, 204, 229, 254, 280, 305, 331, 356, 381, 407, 432, 458, 483, 508, 534, 559, 585, 610, 635, 661, 686, 712, 737, 762, 788, 813, 839, 864, 889, 915, 940, 966, 991, 1016, 1042, 1067, 1093, 1118, 1...

[ "nonn", "easy" ]

A107866

[ 1, -1, -1, -7, -77, -1145, -21410, -481683, -12655196, -379998938, -12830421321, -480984691304, -19816691903510, -889846823832596, -43247136243424264, -2261480610502143000, -126596066994553500000, -7.55315437024418e+21, -4.784564784968213e+23 ]

[ "sign" ]

A115584

[ 1, 0, 1, 1, 1, 1, 2, 1, 3, 2, 4, 3, 6, 4, 7, 7, 8, 8, 12, 9, 15, 14, 17, 18, 24, 21, 29, 29, 35, 35, 46, 42, 56, 54, 65, 67, 81, 77, 98, 95, 115, 114, 139, 135, 164, 165, 190, 195, 230, 225, 272, 271, 313, 321,...

[ "easy", "nonn" ]

A176794

[ 1, 1, 1, 1, 17, 1, 1, 129, 129, 1, 1, 833, 1025, 833, 1, 1, 5121, 6657, 6657, 5121, 1, 1, 30977, 40961, 43265, 40961, 30977, 1, 1, 186369, 247809, 266241, 266241, 247809, 186369, 1, 1, 1119233, 1490945, 1610753, 1638401, 1610753, 14...

[ "nonn", "tabl" ]

A259650

[ 5, 3, 11, 7, 17, 7, 23, 13, 29, 11, 7, 19, 41, 11, 47, 17, 53, 19, 59, 31, 13, 23, 71, 37, 13, 5, 83, 43, 89, 31, 19, 11, 101, 13, 107, 37, 113, 29, 17, 61, 7, 43, 131, 67, 137, 47, 13, 73, 149, 19, 31, 79, 23, ...

[ "nonn" ]

A113678

[ 1, 0, 1, 2, 0, 1, 2, 2, 0, 1, 6, 2, 2, 0, 1, 10, 6, 2, 2, 0, 1, 22, 10, 6, 2, 2, 0, 1, 42, 22, 10, 6, 2, 2, 0, 1, 86, 42, 22, 10, 6, 2, 2, 0, 1, 170, 86, 42, 22, 10, 6, 2, 2, 0, 1, 342, 170, 86, 42, ...

[ "easy", "nonn", "tabl" ]

A291602

[ 1105, 13981, 68101, 137149, 149281, 158369, 266305, 285541, 423793, 617093, 625921, 852841, 1052503, 1052929, 1104349, 1128121, 1306801, 1746289, 2940337, 3048841, 3828001, 4072729, 4154161, 4209661, 4682833, 6183601, 6236473, 6617929, 7803769, 9106141, 11...

[ "nonn" ]

A056439

[ 1, 1, 1, 2, 2, 5, 4, 10, 9, 22, 14, 78, 36, 124, 180, 343, 260, 1329, 804, 3732, 4428, 9742, 8384, 47364, 33778, 108292, 138756, 408244, 331184, 2251604, 1155734 ]

[ "nonn" ]

A103269

[ 1, 12, 1213, 1213121, 1213121121312, 1.2131211213121213e+23, 1.2131211213121214e+43, 1.2131211213121214e+80 ]

[ "nonn" ]

A243592

[ 1, 15, 33, 35, 45, 51, 65, 69, 77, 85, 87, 91, 95, 99, 105, 115, 119, 123, 133, 135, 141, 143, 145, 153, 159, 161, 165, 175, 177, 185, 187, 195, 207, 209, 213, 215, 217, 221, 231, 235, 245, 247, 249, 255, 259, 261, 265, 26...

[ "nonn" ]

A145117

[ 1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2047, 4091, 8175, 16335, 32639, 65215, 130303, 260351, 520191, 1039359, 2076672, 4149254, 8290334, 16564334, 33096030, 66126846, 132123390, 263986430, 527452670, 1053865982, 2105655293, 4207161333, 8406032...

[ "nonn", "easy" ]

A362135

[ 1, 3, 5, 7, 9, 12, 15, 17, 21, 25, 29, 31, 36, 41, 47, 52, 58, 64, 69, 74, 82, 87, 92, 100, 106, 112, 120, 128, 138, 145, 153, 160, 168, 176, 183, 189, 198, 209, 220, 233, 242, 252, 265, 277, 285, 294, 309, 325, 338, 3...

[ "nonn" ]

A157000

[ 2, 3, 4, 2, 5, 5, 6, 9, 2, 7, 14, 7, 8, 20, 16, 2, 9, 27, 30, 9, 10, 35, 50, 25, 2, 11, 44, 77, 55, 11, 12, 54, 112, 105, 36, 2, 13, 65, 156, 182, 91, 13, 14, 77, 210, 294, 196, 49, 2, 15, 90, 275, 450, 378, ...

[ "nonn", "easy", "tabf" ]

A355180

[ 0, 0, 0, 0, 4, 10, 20, 35, 6776, 60564, 352920, 1663365, 126625180, 2361079006, 27334747804, 245495250455, 11174333090480, 328952158255400, 6245314009946736, 90576650639967380, 3209305759254634500, 122557203047084970000, 3.3650686654503e+21 ]

[ "nonn" ]

A281978

[ 1, 4, 2, 6, 3, 15, 5, 20, 10, 40, 8, 24, 12, 36, 9, 54, 18, 90, 30, 120, 60, 180, 45, 135, 27, 162, 81, 324, 108, 216, 72, 144, 16, 64, 32, 96, 48, 240, 80, 320, 160, 640, 128, 384, 192, 576, 288, 864, 432, 1296, 648...

[ "nonn" ]

A374117

[ 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1...

[ "nonn" ]

A199261

[ 0, 0, 0, 0, 0, 0, 0, 3, 3, 0, 0, 0, 0, 0, 0, 1, 0, 18, 18, 0, 1, 0, 36, 0, 0, 0, 36, 0, 0, 0, 114, 0, 0, 114, 0, 0, 0, 0, 0, 1240, 0, 1240, 0, 0, 0, 0, 449, 713, 0, 5381, 5381, 0, 713, 449, 0, 0, 0, 0, ...

[ "nonn", "tabl" ]

A346512

[ 2, 3, 5, 7, 0, 2, 6, 8, 1, 11, 2, 4, 5, 7, 3, 6, 12, 7, 1, 6, 4, 14, 11, 1, 14, 0, 2, 6, 8, 3, 4, 3, 5, 11, 12, 5, 3, 4, 0, 5, 15, 8, 9, 11, 15, 1, 2, 3, 7, 9, 2, 8, 7, 6, 0, 7, 13, 4, 2, 11, 9, ...

[ "base", "nonn", "less" ]

A371760

[ 33, 1093, 73, 17, 97, 11, 193, 17, 89, 11, 193, 73, 673, 13, 257, 33, 41, 15, 97, 65, 1009, 13, 97, 149, 190, 23, 401, 41, 281, 31, 133, 17, 1033, 31, 89, 13, 6, 59, 241, 157, 1217, 91, 145, 37, 937, 29, 1289, 73, 97, ...

[ "nonn" ]

A119445

[ 1, 1, 1, 1, 1, 3, 7, 13, 27, 63, 109, 207, 331, 553, 931, 1531, 2527, 4093, 6673, 10831, 17563, 28561, 46227, 74883, 121219, 196239, 317607, 514047, 831823, 1346041, 2178079, 3524323, 5702619, 9227161, 14930019, 24157471, 39087823, 63245551 ]

[ "nonn" ]

A338311

[ 4, 14, 28, 164, 434, 574, 1106, 5084, 5572, 7874, 8386, 13454, 13694, 19964, 21988, 33166, 39934, 40132, 95122, 103886, 113918, 148994, 157604, 215326, 216124, 256004, 277564, 306404, 341342, 366148, 571154, 660674, 662494, 764956, 771374, 876644...

[ "nonn" ]

A334515

[ 2, 2, 3, 2, 30, 18, 126, 2, 504, 430, 979, 18, 443, 2198, 6820, 976, 78812, 7812, 158080, 142580, 248493, 122870, 1630792, 18, 2777040, 4511, 81688176, 868, 463347935, 5921860, 1211061438, 26636800, 598772163, 40012662, 145710075, 135322524, 40...

[ "nonn" ]

A208881

[ 1, 2, 30, 560, 11550, 252252, 5717712, 133024320, 3155170590, 75957810500, 1850332263780, 45508998487680, 1128243920840400, 28159366024288800, 706857555303576000, 17831659928458211000, 451781821468671700000, 1.1489952898943726e+22, 2.93206575828601e+23 ]

[ "nonn", "walk", "easy" ]

A109832

[ 1, 2, 2, 4, 6, 6, 8, 6, 6, 14, 18, 12, 12, 18, 12, 18, 24, 30, 34, 30, 6, 12, 42, 30, 30, 30, 18, 48, 30, 30, 30, 66, 36, 48, 24, 30, 12, 54, 42, 78, 54, 60, 42, 48, 60, 104, 72, 30, 66, 60, 66, 30, 60, 30, 1...

[ "nonn" ]

A293473

[ 1, 1, 2, 4, 6, 4, 12, 30, 24, 8, 52, 144, 156, 80, 16, 240, 760, 1020, 680, 240, 32, 1188, 4440, 6720, 5640, 2640, 672, 64, 6804, 26712, 47040, 45640, 26880, 9408, 1792, 128, 38960, 175392, 338016, 376320, 261520, 115584, 31360, 4...

[ "sign", "tabl" ]

A289910

[ 2, 2, 2, 2, 10, 90, 4410, 2033010, 47753371890, 536047310324601800, 1.4614650582225405e+29, 4.614615052982976e+47, 4.090661168719129e+77 ]

[ "nonn", "frac" ]

A196605

[ 2, 5, 8, 5, 9, 8, 5, 8, 2, 2, 5, 4, 1, 8, 9, 4, 9, 0, 3, 0, 4, 4, 8, 2, 6, 1, 9, 5, 6, 1, 5, 2, 0, 2, 8, 1, 3, 3, 8, 5, 5, 2, 9, 6, 5, 3, 1, 6, 8, 2, 5, 7, 5, 3, 4, 3, 8, 8, 1, 7, 2, 8, 7, 4...

[ "nonn", "cons" ]

A090408

[ 1, 36, 496, 8256, 130816, 2098176, 33550336, 536887296, 8589869056, 137439215616, 2199022206976, 35184376283136, 562949936644096, 9007199321849856, 144115187807420420, 2305843010287436000, 36893488143124136000, 590295810375885500000, 9.444732965670571e+21 ]

[ "easy", "nonn" ]

A352500

[ 1, -2, 3, -6, 11, -20, 36, -62, 107, -186, 319, -544, 924, -1560, 2628, -4416, 7393, -12346, 20571, -34198, 56749, -94004, 155448, -256668, 423206, -696884, 1146158, -1882928, 3089996, -5065826, 8297281, -13578050, 22201265, -36272398, 59217684, ...

[ "sign" ]

A117740

[ 2, 3, 5, 13, 89, 233, 514229 ]

[ "nonn" ]

A354308

[ 1, 1, 4, 17, 88, 503, 3071, 19372, 124575, 813020, 5361539, 35662727, 238864272, 1609398564 ]

[ "nonn", "hard", "more" ]

A062689

[ 0, 1, 121, 12321, 4, 256, 169, 576, 289, 9, 8100, 2116, 361201, 3136, 181476, 1156, 16, 101761, 5184, 281961, 2209, 9216, 1225, 182329, 3249, 25, 292681, 192721, 8281, 1296, 2304, 183184, 5329, 343396, 203401, 4356, 36, 223729, 173889, 73...

[ "base", "easy", "nonn" ]

A384118

[ 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 3, 4, 3, 1, 1, 6, 5, 5, 6, 1, 1, 10, 12, 51, 12, 10, 1, 1, 15, 37, 97, 97, 37, 15, 1, 1, 21, 98, 218, 368, 218, 98, 21, 1, 1, 28, 219, 519, 2229, 2229, 519, 219, 28, 1, 1, ...

[ "nonn", "tabl" ]

A085382

[ 5, 7, 10, 16, 16, 19, 22, 34, 36, 36, 40, 46, 50, 70, 66, 88, 66, 78, 78, 76, 92, 124, 100, 100, 106, 120, 160, 112, 120, 134, 144, 154, 162, 186, 156, 170, 166, 250, 216, 268, 186, 210, 196, 204, 210, 218, 260, 340, 248...

[ "easy", "nonn" ]

A279183

[ 1, 2, 12, 152, 222, 362, 432, 992, 1517, 2532, 2567, 8472, 34732, 44092, 69312, 82752, 105852, 114392, 128672, 336992, 350082, 393132, 393552, 462747, 497712, 559872, 665817, 714502, 931432, 968952, 1126602, 1281867, 1389337, 1449992, 1638712, 16...

[ "nonn" ]

A060619

[ 0, 1, 22, 52224 ]

[ "nonn" ]

A104354

[ 1, 1, 2, 4, 16, 48, 288, 576, 1728, 8640, 86400, 259200, 3110400, 21772800, 108864000, 217728000, 3483648000, 10450944000, 188116992000, 940584960000, 6584094720000, 72425041920000, 1593350922240000, 4780052766720000, 23900263833600000, 310703429836800000 ]

[ "nonn" ]

A314755

[ 1, 5, 9, 13, 19, 23, 27, 34, 39, 41, 45, 51, 55, 59, 66, 71, 75, 79, 83, 87, 91, 98, 103, 107, 113, 117, 119, 123, 130, 135, 139, 145, 149, 153, 157, 162, 167, 171, 177, 181, 185, 191, 196, 199, 203, 209, 213, 217, 223, ...

[ "nonn" ]

A016340

[ 1, 0, 1, 0, 0, 0, -1, 0, -1, 0, 0, 0, 1, 0, 1, 0, 0, 0, -1, 0, -1, 0, 0, 0, 1, 0, 0, 0, -1, 0, -1, 0, 0, 0, 1, 0, 1, 0, 0, 0, -1, 0, -1, 0, 0, 0, 1, 0, 1 ]

[ "sign", "fini", "full" ]

A140136

[ 1, 1, 1, 1, 7, 7, 1, 1, 20, 75, 75, 20, 1, 1, 42, 364, 1001, 1001, 364, 42, 1, 1, 75, 1212, 6720, 15288, 15288, 6720, 1212, 75, 1, 1, 121, 3223, 30723, 127908, 255816, 255816, 127908, 30723, 3223, 121, 1, 1, 182, 7371, 10953...

[ "easy", "nonn", "tabf" ]

A107135

[ 5, 11, 29, 59, 101, 131, 149, 179, 251, 269, 389, 419, 461, 491, 509, 659, 701, 821, 941, 971, 1019, 1061, 1091, 1109, 1181, 1229, 1259, 1301, 1451, 1499, 1571, 1619, 1709, 1811, 1901, 1931, 1949, 1979, 2069, 2099, 2141, 2309, 2339,...

[ "nonn", "easy" ]

A304974

[ 0, 0, 0, 0, 1, 2, 9, 16, 53, 90, 265, 440, 1221, 2002, 5369, 8736, 22933, 37130, 96105, 155080, 397541, 640002, 1629529, 2619056, 6636213, 10653370, 26899145, 43144920, 108659461, 174174002, 437826489, 701478976, 1760871893, 2820264810, 7072185385,...

[ "nonn", "easy" ]

A238834

[ 0, 1, 1, 2, 2, 5, 4, 13, 6, 30, 11, 69, 15, 148, 28, 320, 34, 661, 64, 1380, 75, 2805, 144, 5743, 159, 11576, 307, 23444, 335, 47075, 655, 94777, 689, 189923, 1350, 381162, 1414, 763077, 2794, 1528884, 2869, 3059257, 5674, 6124113...

[ "nonn" ]

A224734

[ 1, 4, 26, 216, 2075, 21916, 247326, 2930216, 36028117, 456089076, 5910983050, 78100285784, 1048696065394, 14275198859304, 196610207633100, 2735542102308752, 38400942393884060, 543307627503591400, 7740605626606127000, 110970838624540460000, 1.5998346764057932e+21 ]

[ "nonn" ]

A281030

[ 0, 12, 532, 2324, 9854, 38972, 146606, 533340, 1896352, 6625144, 22832024, 77840640, 263040538, 882310796, 2941006434, 9750587480, 32176182992, 105744971236, 346270006718, 1130247359072, 3678591411860, 11941616925216 ]

[ "nonn" ]

A227905

[ 741751, 1024651, 5481451, 31150351, 109437751, 139952671, 178482151, 284301751, 383425351, 395044651, 407282851, 417027451, 498706651, 582799951, 612816751, 620072251, 652969351, 738820351, 977755351, 1126587151, 1204176751, 1397357851, 1588247851, 1789167931 ]

[ "nonn" ]

A131264

[ 1, 269, 41837, 36626159, 154578947, 2155054465, 19410890423, 30691222355, 247555091527, 2201220228533, 227735225320519, 478444326378215 ]

[ "nonn", "more" ]

A150750

[ 1, 2, 8, 29, 127, 526, 2420, 10624, 49914, 226414, 1076960, 4987976, 23924425, 112344643, 542087643, 2571154955, 12461595847, 59550464104, 289620932455, 1392050985731, 6788905487071, 32780909125398, 160230657330042, 776576750273720, 3802994157929216, 184883487951331...

[ "nonn", "walk" ]

A059468

[ 582, 1182, 1194, 2382, 2982, 2994, 3594, 4158, 4182, 4776, 4780, 4782, 5718, 5784, 5802, 5808, 5826, 5844, 5862, 5898, 5946, 5982, 6582, 7782, 8382, 8394, 8958, 8994, 9582, 10182, 10194, 10794, 11382, 11802, 11838, 11874, 11922, 11946, 1195...

[ "base", "nonn" ]

A113328

[ 1, 3, 18, 117, 801, 5724, 42633, 331911, 2717874, 23620329, 220260789, 2228505372, 24681015981, 300506801715, 4017984855786, 58675338993069, 928673101727001, 15804592586240220, 287174716511520030, 5538727108037507000 ]

[ "nonn" ]

A307577

[ 0, 0, 1, 4, 13, 40, 119, 348, 1011, 2928, 8471, 24516, 71023, 206024, 598513, 1741332, 5073733, 14804160, 43252855, 126526756, 370551287, 1086365336, 3188090101, 9364411252, 27529374201, 80993754352, 238463467529, 702563144252, 2071200546129, 6109619428824 ]

[ "nonn" ]

A328310

[ -1, -1, 0, -1, 0, -1, -1, -1, 0, -1, 2, -1, 1, 2, 1, -1, -1, -1, 1, 0, 0, -1, -1, -1, 0, 0, 3, -1, 0, -1, -1, 0, 0, 1, 0, -1, 0, 3, -1, -1, 0, -1, 2, -1, 1, -1, 0, -1, 0, 1, 1, -1, 1, 3, -1, 0, 0, -1, ...

[ "sign" ]

A028347

[ 0, 5, 12, 21, 32, 45, 60, 77, 96, 117, 140, 165, 192, 221, 252, 285, 320, 357, 396, 437, 480, 525, 572, 621, 672, 725, 780, 837, 896, 957, 1020, 1085, 1152, 1221, 1292, 1365, 1440, 1517, 1596, 1677, 1760, 1845, 1932, 2021, 2112,...

[ "nonn", "easy" ]

A093958

[ 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 1, 0, 0...

[ "nonn" ]

A114022

[ 0, 1, 3, 9, 10, 11, 12, 13, 14, 81, 100, 121, 144, 169, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207, 208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223, 224, 225, 226, 227, 228, 2...

[ "easy", "nonn" ]

A232001

[ 64, 800, 8464, 80511, 674041, 6257919, 59351616, 552794085, 5097817201, 47195896740, 438136762561, 4064453149200, 37678579570944, 349334350156955, 3239408289640000, 30038648311142380, 278531798728132160 ]

[ "nonn" ]

A134109

[ 1, 1, 0, 2, 0, 0, 2, 1, 0, 0, 2, 0, 1, 0, 1, 0, 0, 1, 1, 1, 0, 0, 1, 0, 1, 2, 1, 3, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 3, 1, 0, 0, 0, 1, 1, 0, 3, 2, 1, 0, 0, 0, 2, 1, 2, 1, 0, 0, 0, 2, 1, 0, 2, 1...

[ "nonn" ]

A349418

[ 16, 28, 46, 71, 104, 146, 198, 261, 336, 424, 526, 643, 776, 926, 1094, 1281, 1488, 1716, 1966, 2239, 2536, 2858, 3206, 3581, 3984, 4416, 4878, 5371, 5896, 6454, 7046, 7673, 8336, 9036, 9774, 10551, 11368, 12226, 13126, 14069, 15056, ...

[ "nonn", "easy" ]

A218626

[ 0, 0, 0, 0, 0, 1, 13, 18, 43, 69, 115, 140, 243, 302, 402, 539, 726, 896, 1183, 1458, 1873, 2356, 2923, 3572, 4489, 5514, 6738, 8231, 10057, 12164, 14809, 17854, 21541, 25912, 31053, 37180, 44523, 53074, 63137, 75017, 89046, 105408, ...

[ "nonn" ]

A263345

[ 1, 1, 2, 4, 7, 14, 22, 40, 65, 107, 176, 282, 448, 705, 1101, 1701, 2611, 3977, 6021, 9048, 13527, 20102, 29720, 43712, 63997, 93259, 135317, 195539, 281440, 403559, 576568, 820888, 1164826, 1647583, 2323169, 3266041, 4578305, 6399990, 8922...

[ "nonn" ]

A211404

[ 65, 603, 12208, 18803, 18841, 25207, 46115, 49885 ]

[ "nonn", "base", "more" ]

A312471

[ 1, 4, 8, 14, 18, 22, 26, 30, 34, 38, 46, 46, 58, 54, 64, 62, 70, 70, 84, 78, 98, 86, 102, 94, 106, 102, 122, 110, 138, 118, 140, 126, 142, 134, 160, 142, 178, 150, 178, 158, 178, 166, 198, 174, 218, 182, 216, 190, 214, ...

[ "nonn" ]

A027671

[ 1, 3, 6, 10, 21, 39, 92, 198, 498, 1219, 3210, 8418, 22913, 62415, 173088, 481598, 1351983, 3808083, 10781954, 30615354, 87230157, 249144711, 713387076, 2046856566, 5884491500, 16946569371, 48883660146, 141217160458, 408519019449, 1183289542815 ]

[ "nonn", "easy", "nice" ]

A349883

[ 1, 1, 5, 60, 1242, 41241, 2033683, 141318208, 13262986788, 1624337451945, 252725477615989, 48858277079478160, 11523986801592238000, 3.265676705193282e+21, 1.0973367664683091e+24, 4.322917953850946e+26, 1.976903200463191e+29 ]

[ "nonn" ]

A093983

[ 0, 0, 0, 0, 4, 54, 1052, 14611, 181948, 2096211, 22788376, 238482555, 2433024862, 24386079471, 241344901528, 2366884988610, 23059199264485, 223571124198381 ]

[ "nonn", "more" ]

A309941

[ 1, 2, 3, 4, 4, 4, 7, 8, 6, 4, 8, 6, 5, 7, 7, 7, 10, 4, 11, 10, 8, 6, 13, 13, 11, 9, 13, 10, 15, 4, 13, 12, 13, 10, 18, 11, 8, 10, 16, 9, 16, 6, 15, 18, 9, 5, 19, 20, 14, 15, 17, 8, 16, 12, 18, 10, 10, 5...

[ "nonn", "hard" ]

A296830

[ 8, 31, 132, 573, 2441, 10485, 44951, 192730, 826498, 3544082, 15198081, 65172170, 279476178, 1198478073, 5139392105, 22039266498, 94511169171, 405291983276, 1738017670081, 7453162043129, 31961457203015, 137060728087293 ]

[ "nonn" ]

A314141

[ 1, 5, 11, 16, 22, 26, 32, 37, 43, 48, 53, 59, 64, 70, 74, 80, 85, 91, 96, 101, 107, 112, 118, 122, 128, 133, 139, 144, 149, 155, 160, 166, 170, 176, 181, 187, 192, 197, 203, 208, 214, 218, 224, 229, 235, 240, 245, 251, 2...

[ "nonn" ]

A275999

[ 0, 3, 1, 5, 10, 19, 15, 22, 31, 51, 61, 37, 82, 71, 126, 96, 92, 136, 162, 187, 206, 276, 191, 261, 236, 247, 317, 302, 401, 292, 422, 547, 456, 544, 551, 612, 591, 577, 521, 666, 742, 726, 682, 877, 796, 1052, 961, 1046, ...

[ "nonn" ]

A109935

[ 1, 2, 6, 12, 60, 60, 420, 840, 2520, 2520, 27720, 27720, 859320, 35232120, 598946040, 36535708440, 2594035299240, 23346317693160, 303502130011080, 303502130011080, 303502130011080, 303502130011080, 1214008520044320, 1214008520044320, 1214008520044320 ]

[ "base", "nonn" ]

A349691

[ 1, 2, 9, 176, 155, 2450, 21500, 118993, 767700, 12409639, 56024339, 857777653, 8648737607 ]

[ "nonn", "more" ]

A088379

[ 1, 16, 81, 16, 625, 16, 2401, 16, 81, 16, 14641, 16, 28561, 16, 81, 16, 83521, 16, 130321, 16, 81, 16, 279841, 16, 625, 16, 81, 16, 707281, 16, 923521, 16, 81, 16, 625, 16, 1874161, 16, 81, 16, 2825761, 16, 3418801, 16, 81, 16...

[ "nonn", "easy" ]

A141405

[ 2, 23, 101, 1423, 10243, 102043, 1234657, 10243567, 100234657, 1123465789, 10123457689, 100123456789, 1001233458679, 10011223456879, 100122334546789, 1001122334546879 ]

[ "more", "nonn", "base" ]

A214305

[ 341, 1387, 2047, 2701, 3277, 4033, 4369, 4681, 5461, 7957, 8321, 10261, 13747, 14491, 15709, 18721, 19951, 23377, 31417, 31609, 31621, 35333, 42799, 49141, 49981, 60701, 60787, 65077, 65281, 80581, 83333, 85489, 88357, 90751, 104653, 123251, 12...

[ "nonn" ]

A260248

[ 48, 99, 99, 256, 213, 256, 635, 551, 551, 635, 1598, 1235, 1476, 1235, 1598, 4027, 3026, 3287, 3287, 3026, 4027, 10110, 7822, 8242, 5733, 8242, 7822, 10110, 25421, 18837, 22944, 14045, 14045, 22944, 18837, 25421, 63884, 45114, 56634, 4214...

[ "nonn", "tabl" ]

A353275

[ 1, 1, 1, 4, 1, 3, 1, 8, 9, 5, 1, 12, 1, 7, 5, 16, 1, 9, 1, 4, 7, 11, 1, 24, 25, 13, 27, 4, 1, 15, 1, 32, 11, 17, 7, 36, 1, 19, 13, 8, 1, 7, 1, 4, 45, 23, 1, 16, 49, 25, 17, 4, 1, 27, 11, 8, 19, 29, 1,...

[ "nonn", "less" ]

A020313

[ 247, 403, 559, 589, 817, 1333, 1661, 3785, 5461, 6533, 7471, 7483, 7657, 8401, 10621, 14981, 17329, 24341, 25327, 28009, 32477, 38503, 42661, 49051, 49141, 65311, 74089, 74803, 79003, 87949, 95981, 96049, 102719, 104653, 109061, 111361, 112471,...

[ "nonn" ]

A015954

[ 1, 2, 10, 50, 250, 1250, 2810, 5050, 6250, 14050, 25250, 31250, 40210, 70250, 126250, 156250, 201050, 351250, 510050, 631250, 650050, 781250, 789610, 1005250, 1265050, 1419050, 1756250, 2550250, 3156250, 3250250, 3906250, 3948050, 5026250, 6325250, ...

[ "nonn" ]

A099643

[ 3, 2, 5, 1, 2, 1, 3, 2, 1, 2, 1, 13, 897, 2, 8, 1, 2, 1, 1, 15, 2, 3, 2, 1, 1, 2, 1, 11, 2, 1117, 1, 12, 2, 1, 1, 2, 1, 18, 4, 187, 22, 1, 3, 3, 3, 14, 1, 2, 3, 1, 78, 3, 1, 1, 65, 3, 1, 4, 2, 2, ...

[ "cofr", "nonn" ]

A187544

[ 1, 2, 38, 1310, 66254, 4428782, 368444078, 36691056110, 4256199137774, 563672814445742, 83921091641375920, 13875375391723854000, 2.522552600160249e+21, 5.001415813306264e+23, 1.0740009703719957e+26 ]

[ "nonn", "easy" ]