id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A387739
[ 1, 1, 0, 1, 1, 2, 2, 3, 2, 3, 4, 5, 3, 4, 6, 7, 9, 11, 8, 11, 13, 16, 11, 14, 18, 22, 26, 32, 24, 30, 36, 43, 32, 38, 47, 55, 66, 77, 61, 73, 86, 101, 77, 92, 108, 127, 147, 172, 138, 162, 188, 217, 172, 199, 232, 267, 308, 353, 290, 334, 384, 439, 353, 407 ]
[ "nonn" ]
A248992
[ 2, 53, 204, 585, 3014, 12937, 32094, 70037, 123076, 245471, 426828, 726053, 1117244, 1682603, 2516548, 3710543, 5180912, 7091467, 9311842, 12467375, 16165280, 20786881, 26043958, 32368635, 39971764, 49206501, 59436930, 71456833, 84599994 ]
[ "nonn" ]
A108739
[ 3, 30, 6, 80, 12, 450, 894, 3636, 70756, 97220, 66768, 300840, 1623568, 8436308 ]
[ "more", "nonn", "hard" ]
A340435
[ 1014458, 85045184, 6126191066, 411615281120, 26756164505978, 1711634190402944, 108645469309633950, 6869952591587661000, 433592445465504600000, 2.7340695032306206e+22, 1.723219625722022e+24, 1.0858627250088071e+26, 6.841661762270647e+27 ]
[ "easy", "nonn" ]
A117963
[ 1, 1, 2, 0, 2, 2, 1, 3, 4, -2, 2, 0, 2, 2, 4, 0, 4, 4, -1, 3, 2, 2, 4, 6, 1, 7, 8, -6, 2, -4, 4, 0, 4, -2, 2, 0, 2, 2, 4, 0, 4, 4, 2, 6, 8, -4, 4, 0, 4, 4, 8, 0, 8, 8, -5, 3, -2, 4, 2, 6, -1, 5, 4, 0, 4, 4, 2, 6, 8, 2, 10, 12, -5, 7, 2, 6, 8, 14, 1, 15, 16, -14, 2, -12, 8, -4, 4, -6, -2, -8, 8, 0, 8, -4, 4, 0, 4, 4, 8, -6, 2 ]
[ "easy", "sign" ]
A072382
[ 2, 11, 101, 181, 241, 281, 383, 443, 463, 727, 787, 827, 887, 929, 1009, 1049, 1069, 1151, 1171, 1231, 1291, 1373, 1433, 1453, 1493, 1777, 1877, 10601, 11411, 11801, 12011, 12211, 12421, 12611, 12821, 13421, 13831, 14431, 14831, 15241, 15451 ]
[ "nonn", "base" ]
A133434
[ 3, 7, 23, 41, 109, 457, 2137, 14293, 55441, 57991, 221101, 513991, 2447761, 3248701, 4076641, 11643607, 16135981, 25400761, 25738831, 399263281, 741488749, 794932741, 5516118301, 9237839521, 10453202761, 20833333501 ]
[ "nonn" ]
A215837
[ 0, -42, 6804, 6524, 70098, 41090, 47110, 26054, 349440, 187124, 106876, 154336, 89600, 184296, 100660, 77084, 47894, 1192590, 644546, 358330, 453250, 287294, 269262, 170506, 434322, 254506, 187250, 126560, 520982, 294546, 169330, 203350, 137620, 182294, 114044 ]
[ "sign" ]
A175992
[ 0, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 1, 0, 1, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 0, 0, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ]
[ "nonn", "tabl", "easy" ]
A346028
[ 334759, 9094009, 9685771, 11875307, 12503017, 19776443, 32906869, 35414443, 37376201, 70252333, 71161309, 73694129, 77454067, 93907523, 98606489, 100545637, 104827991, 112604857, 147009703, 155376791, 183766217, 187717499, 194024953, 196702423, 314716411 ]
[ "nonn", "base" ]
A239321
[ 1, 2, 10, 16, 22, 28, 34, 36, 40, 46, 50, 51, 52, 56, 57, 58, 64, 66, 70, 76, 78, 82, 86, 87, 88, 92, 93, 94, 96, 100, 101, 106, 112, 116, 117, 118, 120, 124, 126, 130, 134, 135, 136, 142, 144, 146, 147, 148, 154, 156, 160, 162, 166, 170, 171, 172, 176, 177 ]
[ "nonn" ]
A117683
[ 1, 1, 1, 1, 1, 1, 4, 4, 4, 1, 1, 4, 4, 1, 1, 6, 6, 24, 6, 6, 1, 1, 6, 6, 6, 6, 1, 1, 8, 8, 48, 12, 48, 8, 8, 1, 9, 72, 72, 108, 108, 72, 72, 9, 1, 10, 90, 720, 180, 1080, 180, 720, 90, 10, 1, 1, 10, 90, 180, 180, 180, 180, 90, 10, 1, 1, 12, 12, 120, 270, 2160, 360, 2160, 270, 120, 12, 12, 1 ]
[ "nonn", "tabl" ]
A202409
[ 1, 4, 4, 9, 36, 9, 16, 168, 168, 16, 25, 550, 1400, 550, 25, 36, 1440, 7500, 7500, 1440, 36, 49, 3234, 30135, 61250, 30135, 3234, 49, 64, 6496, 98784, 356720, 356720, 98784, 6496, 64, 81, 11988, 278208, 1629936, 2889432, 1629936, 278208, 11988, 81 ]
[ "nonn", "tabl", "changed" ]
A228150
[ 7, 19, 199, 1009, 19417, 160009, 1086791, 10301299, 139993999, 1391909989, 10597399381, 108979916999, 1993999651909, 13924969999799 ]
[ "nonn", "base", "more" ]
A008506
[ 1, 14, 105, 560, 2380, 8568, 27132, 77520, 203490, 497420, 1144066, 2496144, 5200300, 10400599, 20058286, 37442055, 67863355, 119757470, 206244507, 347346468, 573088920, 927780270, 1475840380, 2309645534, 3559971156, 5409749996 ]
[ "nonn", "easy" ]
A140561
[ 2, 3, 5, 7, 11, 37, 43, 79, 89, 109, 113, 131, 151, 167, 181, 193, 197, 227, 241, 263, 271, 283, 307, 317, 349, 373, 379, 401, 419, 439, 457, 461, 479, 487, 503, 521, 557, 569, 571, 593, 607, 631, 641, 659, 661, 683, 691, 733, 739, 751, 769, 797, 827, 857, 863 ]
[ "nonn" ]
A339218
[ 1, 0, 0, 0, 1, 0, 2, 0, 1, 1, 3, 0, 3, 1, 4, 3, 5, 1, 6, 4, 8, 6, 9, 5, 12, 9, 14, 11, 17, 13, 22, 17, 24, 21, 31, 26, 37, 31, 42, 39, 52, 46, 61, 56, 71, 67, 84, 79, 100, 95, 114, 111, 135, 131, 158, 154, 180, 180, 212, 209, 244, 244, 280, 283, 324, 325, 372, 378, 426, 434, 487 ]
[ "nonn" ]
A010938
[ 1, 22, 231, 1540, 7315, 26334, 74613, 170544, 319770, 497420, 646646, 705432, 646646, 497420, 319770, 170544, 74613, 26334, 7315, 1540, 231, 22, 1 ]
[ "nonn", "fini", "full", "easy" ]
A047637
[ 1, 0, 0, 546, 1638, 8190, 25298, 57330, 131586 ]
[ "nonn" ]
A187490
[ 1, 2, 6, 12, 22, 31, 49, 70, 99, 128, 176, 216, 284, 343, 423, 515, 633, 722, 860, 1007, 1173, 1333, 1552, 1729, 1989, 2223, 2502, 2809, 3138, 3416, 3819, 4226, 4658, 5049, 5570, 6016, 6601, 7146, 7719, 8371, 9100, 9686, 10461, 11208, 12039 ]
[ "nonn" ]
A026316
[ 1, 4, 7, 8, 10, 11, 13, 14, 16, 17, 20, 23, 26, 29, 30, 32, 33, 35, 36, 38, 39, 42, 45, 48, 51, 52, 54, 55, 57, 58, 60, 61, 64, 67, 70, 73, 74, 76, 77, 79, 80, 82, 83, 86, 89, 92, 95, 96, 98, 99, 101, 102, 104, 105, 108, 111, 114, 117, 118 ]
[ "nonn" ]
A345367
[ 1, 2, 6, 28, 168, 1137, 8221, 62041, 482773, 3845033, 31188921, 256757719, 2139691083, 18015030073, 153008796673, 1309402039993, 11279339531413, 97724562251137, 851035285261745, 7445189624293545, 65401191955640664, 576639234410182300, 5101317352349364000 ]
[ "nonn" ]
A307953
[ 1, 5, 16, 100, 745, 5981, 54668, 542147, 5770420, 65544681, 788168476, 9982471033, 132645367515, 1842830414090, 26692298441517, 402114353625235, 6287231891432992, 101837297768099070, 1705965231481768400, 29511920017674007000, 526496308467362040000, 9.674316410154434e+21, 1.828823156654891e+23, 3.552928213442165e+24, 7.086542683520373e+25 ]
[ "nonn" ]
A087223
[ 1, 2, 5, 14, 36, 96, 254, 676, 1792, 4756, 12621, 33490, 88868, 235818, 625764, 1660510, 4406296, 11692452, 31026836, 82332140, 218474784, 579739960, 1538385398, 4082226194, 10832507040, 28744906148, 76276860598, 202406625820 ]
[ "nonn" ]
A287937
[ 1, 9, 675, 59535, 32531625, 24405225075, 4133856862760625, 2232691548877164300, 1.3301767332333179e+22, 1.0002804075547316e+29, 1.8217198913476943e+35, 1.2012265189685857e+40, 7.574987892335763e+49 ]
[ "nonn", "frac" ]
A381969
[ 3701, 65442077, 8410957371097 ]
[ "nonn", "base", "bref", "more" ]
A018990
[ 0, 10, 20, 244, 1028, 7831, 45586, 320653, 2114588, 14817954, 102950126, 731851644, 5225037928, 37735447458, 274238573658 ]
[ "nonn", "more" ]
A066948
[ 0, 1, 1, 1, 5, 1, 6, 2, 1, 13, 5, 1, 18, 7, 2, 1, 36, 11, 3, 1, 48, 20, 5, 2, 79, 28, 9, 3, 109, 42, 13, 5, 1, 170, 64, 19, 7, 1, 230, 90, 28, 11, 2, 1, 337, 127, 40, 17, 3, 1, 453, 181, 58, 24, 5, 2, 648, 247, 80, 34, 7, 3, 859, 338, 111, 48, 11, 5, 1, 1185, 465, 151, 66, 15, 7, 1 ]
[ "easy", "nonn", "tabf" ]
A258202
[ 121, 143, 476, 498, 831, 853, 1076, 1186, 1208, 1541, 1563, 1786, 1896, 1918, 2251, 2273, 2606, 2628, 2961, 2983, 3316, 3338, 3561, 3671, 3693, 4026, 4048, 4381, 4403, 4736, 4758, 5091, 5113, 5336, 5446, 5468, 5801, 5823, 6156, 6178, 6511, 6533, 6866, 6888, 7221, 7243, 7576, 7598, 7821, 7931, 7953, 8286, 8308, 8641, 8663, 8996, 9018 ]
[ "nonn" ]
A281199
[ 0, 2, 10, 38, 130, 420, 1308, 3970, 11822, 34690, 100610, 289032, 823800, 2332418, 6566290, 18394910, 51310978, 142587180, 394905492, 1090444930, 3002921270, 8249479162, 22612505090, 61857842448, 168903452400, 460409998850 ]
[ "nonn" ]
A386586
[ 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0, 1, 1, 0, 0, 0, 1, 1, 0, 0, 0, 0, 1, 2, 1, 0, 0, 0, 0, 1, 2, 1, 0, 0, 0, 0, 0, 1, 3, 2, 1, 0, 0, 0, 0, 0, 1, 3, 2, 1, 0, 0, 0, 0, 0, 0, 1, 4, 4, 2, 1, 0, 0, 0, 0, 0 ]
[ "nonn", "tabl", "more" ]
A104384
[ 1, 4, 12, 27, 57, 110, 201, 352, 598, 984, 1586, 2503, 3882, 5928, 8932, 13287, 19551, 28472, 41078, 58754, 83372, 117417, 164230, 228212, 315190, 432817, 591130, 803192, 1086035, 1461680, 1958596, 2613417, 3473190, 4598073, 6064920, 7971480 ]
[ "nonn" ]
A046165
[ 1, 1, 2, 8, 49, 462, 6424, 129425, 3731508, 152424420, 8780782707, 710389021036, 80610570275140, 12815915627480696, 2855758994821923000, 892194474524889400000, 3.91202163933291e+23, 2.409437185354278e+26, 2.086833983423005e+29 ]
[ "nonn" ]
A155583
[ 1, 1, 2, 6, 12, 28, 36, 36, 216, 216, 720, 1512, 1512, 2520, 12096, 12096, 12096, 10080, 60480, 108864, 108864, 54432, 604800, 604800, 1088640, 544320, 326592 ]
[ "nonn", "uned" ]
A155450
[ 5, 18, 28, 41, 51, 64, 74, 87, 97, 110, 120, 133, 143, 156, 166, 179, 189, 202, 212, 225, 235, 248, 258, 271, 281, 294, 304, 317, 327, 340, 350, 363, 373, 386, 396, 409, 419, 432, 442, 455, 465, 478, 488, 501, 511, 524, 534, 547, 557, 570, 580, 593, 603, 616 ]
[ "nonn", "easy" ]
A093143
[ 1, 5, 50, 500, 5000, 50000, 500000, 5000000, 50000000, 500000000, 5000000000, 50000000000, 500000000000, 5000000000000, 50000000000000, 500000000000000, 5000000000000000, 50000000000000000, 500000000000000000, 5000000000000000000, 50000000000000000000, 500000000000000000000 ]
[ "nonn", "easy", "changed" ]
A101306
[ 2, 5, 10, 17, 18, 21, 28, 37, 40, 49, 50, 57, 58, 61, 68, 71, 80, 81, 88, 89, 92, 101, 104, 113, 120, 121, 124, 131, 140, 143, 150, 151, 158, 167, 176, 177, 184, 187, 194, 197, 206, 207, 208, 211, 218, 227, 228, 231, 238, 247, 250, 259, 260, 261, 268, 271, 280 ]
[ "nonn", "base", "easy" ]
A043445
[ 6, 14, 22, 30, 38, 46, 48, 49, 50, 51, 52, 53, 55, 62, 70, 78, 86, 94, 102, 110, 112, 113, 114, 115, 116, 117, 119, 126, 134, 142, 150, 158, 166, 174, 176, 177, 178, 179, 180, 181, 183, 190, 198, 206, 214, 222, 230, 238, 240, 241, 242, 243, 244, 245, 247, 254, 262 ]
[ "nonn", "easy", "base" ]
A253411
[ 1, 76, 646, 108871, 930811, 156991186, 1342228096, 226381180621, 1935491982901, 326441505463576, 2790978097114426, 470728424497295200, 4024588480547019000, 678790061683594200000, 5.803453797970704e+21, 9.788147982193184e+23, 8.368576352085274e+24 ]
[ "nonn", "easy" ]
A033370
[ 50, 25, 16, 12, 10, 8, 7, 6, 5, 5, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ]
[ "easy", "nonn" ]
A019621
[ 6, 5, 6, 9, 0, 2, 6, 3, 2, 5, 1, 3, 3, 5, 1, 3, 1, 2, 7, 2, 7, 9, 6, 5, 4, 5, 1, 5, 0, 3, 5, 8, 2, 6, 5, 3, 4, 6, 4, 2, 2, 2, 1, 9, 5, 0, 5, 8, 8, 5, 4, 9, 9, 7, 0, 6, 7, 6, 6, 1, 6, 2, 5, 3, 9, 8, 4, 0, 2, 2, 0, 0, 8, 5, 8, 2, 5, 6, 2, 1, 5, 9, 6, 7, 1, 2, 0, 2, 9, 7, 6, 7, 0, 0, 3, 6, 4, 5, 7 ]
[ "nonn", "cons" ]
A381103
[ 1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 96, 192 ]
[ "nonn", "fini", "full" ]
A288108
[ 1, 0, 1, 0, 1, 1, 0, 3, 1, 1, 0, 5, 2, 1, 1, 0, 13, 5, 3, 1, 1, 0, 31, 15, 4, 4, 1, 1, 0, 71, 27, 10, 7, 5, 1, 1, 0, 181, 76, 36, 11, 11, 6, 1, 1, 0, 447, 196, 83, 22, 19, 16, 7, 1, 1, 0, 1111, 548, 225, 81, 32, 31, 22, 8, 1, 1, 0, 2799, 1388, 573, 235, 60, 56, 48, 29, 9, 1, 1 ]
[ "nonn", "tabl" ]
A312450
[ 1, 4, 8, 14, 18, 22, 26, 29, 35, 42, 43, 52, 48, 58, 61, 67, 72, 75, 77, 82, 92, 88, 104, 95, 110, 108, 114, 119, 124, 127, 131, 143, 132, 154, 140, 162, 158, 163, 166, 171, 174, 180, 196, 178, 205, 184, 212, 206, 212, 216 ]
[ "nonn" ]
A097774
[ 1, 786, 617795, 485586084, 381670044229, 299992169177910, 235793463303793020, 185333362164612140000, 1.4567178686792184e+23, 1.144978391448244e+26, 8.99951558960451e+28 ]
[ "nonn", "easy" ]
A300245
[ 1, 2, 2, 3, 2, 4, 2, 5, 6, 7, 2, 8, 2, 9, 10, 11, 2, 12, 2, 13, 14, 15, 2, 16, 17, 18, 19, 11, 2, 20, 2, 21, 22, 23, 24, 25, 2, 26, 27, 28, 2, 29, 2, 30, 31, 32, 2, 33, 34, 35, 36, 37, 2, 38, 27, 39, 40, 41, 2, 42, 2, 43, 44, 45, 46, 47, 2, 48, 49, 50, 2, 51, 2, 52, 53, 54, 46, 55, 2, 56, 57, 58, 2, 59, 40, 60, 61, 62, 2, 63, 36, 64, 65, 66 ]
[ "nonn" ]
A147230
[ 1, 1, 1, 1, 5, 9, 28, 67, 302, 1369, 9282, 54141, 470976, 3945073, 47144695, 569244886 ]
[ "nonn" ]
A152977
[ 1, 1, 1, 1, 2, 1, 1, 2, 3, 1, 1, 2, 4, 5, 1, 1, 2, 4, 9, 9, 1, 1, 2, 4, 10, 25, 17, 1, 1, 2, 4, 10, 35, 81, 33, 1, 1, 2, 4, 10, 36, 165, 289, 65, 1, 1, 2, 4, 10, 36, 201, 969, 1089, 129, 1, 1, 2, 4, 10, 36, 202, 1625, 6545, 4225, 257, 1, 1, 2, 4, 10, 36, 202, 1827, 17361, 47905, 16641, 513, 1 ]
[ "nonn", "tabl" ]
A126606
[ 0, 2, 2, 4, 2, 6, 4, 6, 2, 8, 6, 10, 4, 10, 6, 8, 2, 10, 8, 14, 6, 16, 10, 14, 4, 14, 10, 16, 6, 14, 8, 10, 2, 12, 10, 18, 8, 22, 14, 20, 6, 22, 16, 26, 10, 24, 14, 18, 4, 18, 14, 24, 10, 26, 16, 22, 6, 20, 14, 22, 8, 18, 10, 12, 2, 14, 12, 22, 10, 28, 18, 26, 8, 30, 22, 36, 14, 34, 20, 26 ]
[ "nonn" ]
A149042
[ 1, 1, 3, 10, 36, 139, 567, 2354, 10051, 43745, 192742, 858883, 3869637, 17569721, 80307106, 369430312, 1708635040, 7938060632, 37034246311, 173437700581, 814901766911, 3840290612220, 18148048110860, 85975458675768, 408225045863473, 1942410972814486, 9260276749410252, 44226028788343010 ]
[ "nonn", "walk" ]
A353950
[ 3, -4, -8, -26, -52, -126, -320, -1214, -2016, -7068, -16064, -48142, -122552, -390574, -903176, -3549556, -7597004, -22902332, -61172890, -198872948, -486889660, -1555059566, -4093173788, -12448334478, -33815484714, -105268420776, -279683446078, -894795490384, -2366564864546 ]
[ "sign" ]
A087273
[ 7, 5, 2, 11, 17, 5, 13, 29, 7, 11, 47, 7, 31, 13, 71, 5, 89, 23, 101, 107, 11, 17, 5, 67, 73, 19, 31, 23, 41, 17, 191, 197, 103, 19, 7, 227, 59, 7, 251, 13, 269, 17, 41, 29, 37, 23, 317, 67, 31, 43, 7, 359, 181, 29, 193, 79, 101, 37, 13, 211, 17, 11, 461, 467, 47, 17, 71, 23 ]
[ "nonn", "changed" ]
A063296
[ -1, 12, 33, 55, 77, 99, 121, 143, 165, 187, 209, 229, 253, 275, 297, 317, 341, 361, 385, 405, 429, 449, 473, 491, 517, 537, 561, 579, 605, 623, 649, 667, 693, 711, 737, 753, 781, 799, 825, 841, 869, 885, 913, 929, 957, 973, 1001, 1015, 1045 ]
[ "sign" ]
A078301
[ 2, 1, 7, 6, 4 ]
[ "nonn", "cons" ]
A255136
[ 12, 28, 36, 44, 52, 68, 76, 84, 92, 100, 116, 124, 132, 140, 148, 156, 172, 180, 188, 196, 204, 212, 228, 244, 252, 260, 268, 276, 284, 292, 300, 316, 324, 332, 340, 348, 356, 364, 372, 380, 396, 404, 412, 420, 428, 436, 444, 452, 460, 476, 484, 492, 500 ]
[ "nonn" ]
A205309
[ 528, 6427791, 50933680120, 442834241887042, 3775750320744044000, 3.232516499579581e+22 ]
[ "nonn" ]
A320388
[ 1, 1, 1, 2, 2, 3, 3, 4, 5, 5, 6, 8, 7, 9, 11, 10, 12, 15, 14, 16, 19, 18, 21, 25, 23, 26, 31, 29, 33, 38, 36, 40, 46, 44, 49, 56, 53, 58, 66, 64, 70, 77, 76, 82, 92, 89, 96, 106, 104, 113, 123, 120, 130, 142, 141, 149, 162, 160, 172, 186, 184, 195, 211, 210, 223, 238 ]
[ "nonn" ]
A027913
[ 1, 1, 2, 3, 10, 15, 50, 77, 266, 414, 1452, 2277, 8074, 12727, 45474, 71955, 258570, 410346, 1481108, 2355962, 8533660, 13599915, 49402850, 78855339, 287134346, 458917850, 1674425300, 2679183405, 9792273690, 15683407785 ]
[ "nonn" ]
A300079
[ 4, 6, 9, 10, 14, 15, 16, 18, 20, 22, 25, 26, 27, 30, 32, 34, 35, 38, 39, 40, 45, 46, 48, 49, 50, 51, 52, 54, 55, 58, 60, 62, 64, 68, 70, 74, 75, 78, 81, 82, 85, 86, 87, 90, 94, 95, 96, 98, 100, 102, 104, 105, 106, 110, 111, 112, 115, 116, 118, 119, 120, 121, 122, 123, 125, 128, 134, 135, 136, 140, 142, 143, 144, 146, 148, 150, 153 ]
[ "nonn" ]
A243084
[ 1, 1, 2, 4, 8, 16, 32, 63, 127, 247, 494, 960, 1892, 3672, 7147, 13798, 26581, 50929, 97196, 184578, 348856, 659351, 1232960, 2297710, 4293741, 7938967, 14597060, 26899716, 49245147, 89549454, 162797168, 294737328, 530981823, 953222139, 1708323110, 3043849193 ]
[ "nonn" ]
A046574
[ 1, 4, 5, 2, 19, 35, 259, 483, 1815, 6864, 52195, 99671, 382109, 1469650, 5668327, 21915550, 84913470, 329624730, 2563431075, 4991324415, 19463777025, 75992317170, 297026449005, 1162147683450, 4551257541090, 17839099909800 ]
[ "nonn" ]
A061315
[ 1, 1, 2, 1, 3, 3, 1, 5, 6, 4, 1, 10, 16, 10, 5, 1, 28, 76, 40, 15, 6, 1, 154, 1216, 430, 85, 21, 7, 1, 3520, 247456, 37324, 1870, 161, 28, 8, 1, 1551880 ]
[ "nonn", "tabl" ]
A276759
[ 1, 5, 3, 3, 9, 1, 3, 3, 1, 9, 7, 9, 3, 5, 7, 4, 5, 0, 7, 9, 1, 9, 7, 4, 1, 0, 8, 2, 0, 7, 2, 7, 3, 3, 7, 7, 9, 7, 8, 5, 2, 9, 8, 6, 1, 0, 6, 5, 0, 7, 6, 6, 6, 7, 1, 7, 3, 3, 0, 7, 6, 0, 0, 5, 6, 8, 9, 4, 4, 9, 0, 8, 1, 1, 0, 0, 4, 3, 9, 2, 4, 4, 9, 9, 0, 6, 1, 0, 5, 6, 5, 5, 3, 4, 6, 3, 7, 0, 9, 6, 2, 0, 7, 1, 0 ]
[ "nonn", "cons" ]
A103450
[ 1, 1, 1, 1, 3, 1, 1, 5, 5, 1, 1, 7, 12, 7, 1, 1, 9, 22, 22, 9, 1, 1, 11, 35, 50, 35, 11, 1, 1, 13, 51, 95, 95, 51, 13, 1, 1, 15, 70, 161, 210, 161, 70, 15, 1, 1, 17, 92, 252, 406, 406, 252, 92, 17, 1, 1, 19, 117, 372, 714, 882, 714, 372, 117, 19, 1, 1, 21, 145, 525, 1170, 1722, 1722, 1170, 525, 145, 21, 1 ]
[ "easy", "nonn", "tabl" ]
A118997
[ 1, 4, 16, 80, 8448, 907904, 81949952, 13480664064, 12792558313472, 18963201072750590 ]
[ "nonn", "more" ]
A024774
[ 2, 3, 5, 25, 35, 215, 515, 2115, 3515 ]
[ "nonn", "base", "fini", "full" ]
A325005
[ 1, 3, 1, 6, 6, 1, 10, 21, 10, 1, 15, 55, 56, 15, 1, 21, 120, 220, 126, 21, 1, 28, 231, 680, 715, 252, 28, 1, 36, 406, 1771, 3060, 2002, 462, 36, 1, 45, 666, 4060, 10626, 11628, 5005, 792, 45, 1, 55, 1035, 8436, 31465, 53130, 38760, 11440, 1287, 55, 1 ]
[ "nonn", "tabl", "easy" ]
A064392
[ 1, 2, 5, 10, 13, 26, 37, 65, 74, 130, 185, 370, 463, 481, 926, 962, 2315, 2405, 4630, 4810, 6019, 12038, 17131, 30095, 34262, 60190, 85655, 171310, 222703 ]
[ "more", "nonn" ]
A086272
[ 1, 3, 1, 7, 4, 1, 13, 10, 5, 1, 21, 19, 13, 6, 1, 31, 31, 25, 16, 7, 1, 43, 46, 41, 31, 19, 8, 1, 57, 64, 61, 51, 37, 22, 9, 1, 73, 85, 85, 76, 61, 43, 25, 10, 1, 91, 109, 113, 106, 91, 71, 49, 28, 11, 1, 111, 136, 145, 141, 127, 106, 81, 55, 31, 12, 1, 133, 166, 181, 181, 169 ]
[ "nonn", "tabl", "easy" ]
A109410
[ 19, 17, 19, 17, 19, 17, 19, 19, 19, 19, 17, 19, 19, 19, 19, 17, 17, 37, 19, 19, 17, 19, 19, 17, 37, 17, 37, 17, 19, 37, 37, 17, 37, 37, 37, 37, 37, 37, 37, 19, 17, 19, 37, 37, 17, 37, 37, 37, 19, 37, 37, 37, 37, 19, 37, 37, 37, 37, 37, 37, 37, 17, 37, 37, 37, 37, 37, 37, 37 ]
[ "base", "nonn" ]
A210711
[ 111, 221, 551, 771, 11111, 14141, 15151, 16161, 19191, 23231, 24241, 29291, 30301, 34341, 36361, 37371, 38381, 39391, 42421, 44441, 47471, 50501, 53531, 55551, 56561, 59591, 62621, 68681, 70701, 74741, 75751, 77771, 79791, 81811, 83831, 84841, 87871, 91911, 95951, 96961, 1001001 ]
[ "nonn", "base", "easy" ]
A222217
[ 8, 1, 2, 3, 4, 5, 6, 7, 0, 9, 18, 11, 12, 13, 14, 15, 16, 17, 10, 19, 28, 21, 22, 23, 24, 25, 26, 27, 20, 29, 38, 31, 32, 33, 34, 35, 36, 37, 30, 39, 48, 41, 42, 43, 44, 45, 46, 47, 40, 49, 58, 51, 52, 53, 54, 55, 56, 57, 50, 59, 68, 61, 62, 63, 64, 65, 66, 67, 60, 69, 78, 71, 72, 73, 74, 75 ]
[ "nonn", "easy", "base" ]
A191015
[ 1, 1, 2, 3, 4, 7, 9, 12, 18, 25, 32, 47, 61, 79, 108, 143, 182, 246, 315, 404, 526, 674, 849, 1102, 1389, 1745, 2215, 2788, 3467, 4384 ]
[ "nonn" ]
A136719
[ 1, 3, 27, 432, 10125, 314928, 12252303, 573308928, 31381059609, 1968300000000, 139234453205859, 10968475320188928, 952427511967417300, 90388408459919050000, 9.308590679915771e+21, 1.0339477154939824e+24, 1.2321792648231166e+26, 1.568272084045775e+28 ]
[ "nonn" ]
A354261
[ 1, 3, 30, 492, 11250, 330282, 11844288, 501822108, 24527880756, 1358556883308, 84094256900232, 5753027212816320, 431039748845205000, 35102411472973316000, 3.08723665310761e+21, 2.9162777287398024e+23, 2.9447260745861895e+25 ]
[ "nonn" ]
A386152
[ 2, 3, 23, 29, 83, 89, 223, 229, 233, 239, 283, 293, 383, 389, 823, 829, 839, 883, 929, 983, 2239, 2293, 2333, 2339, 2383, 2389, 2393, 2399, 2833, 2939, 2999, 3229, 3299, 3323, 3329, 3389, 3823, 3833, 3889, 3923, 3929, 3989, 8233, 8293, 8329, 8389, 8839, 8893 ]
[ "nonn", "base", "easy" ]
A196790
[ 11, 286, 3003, 19448, 92378, 352716, 1144066, 3268760, 8436285, 20030010, 44352165, 92561040, 183579396, 348330136, 635745396, 1121099408, 1917334783, 3190187286, 5178066751, 8217822536, 12777711870, 19499099620, 29248649430, 43183019880, 62828356305, 90177170226 ]
[ "nonn", "easy" ]
A111124
[ 0, 0, 2, 3, 4, 6, 11, 17, 24, 36, 55, 84, 127, 189, 284, 432, 648, 970, 1452, 2179, 3262, 4889, 7346, 11006, 16524, 24774, 37177, 55771, 83685, 125548, 188329, 282487, 423692, 635489, 953271, 1430014, 2144962, 3217488, 4826220, 7239443, 10859222, 16288208, 24432262 ]
[ "nonn" ]
A007349
[ 17, 29, 61, 97, 109, 113, 149, 181, 193, 229, 233, 257, 269, 313, 337, 389, 433, 461, 509, 541, 577, 593, 701, 709, 821, 857, 937, 941, 953, 977, 1021, 1033, 1069, 1097, 1109, 1153, 1181, 1193, 1217, 1229, 1297, 1301, 1381, 1429, 1433, 1549, 1553, 1621, 1697, 1709, 1741, 1777, 1789, 1861, 1873, 1913, 1949 ]
[ "nonn" ]
A137920
[ 3, 8, 10, 13, 18, 25, 43, 48, 55, 62, 67, 78, 87, 88, 108, 112, 113, 125, 130, 132, 140, 147, 153, 157, 172, 178, 200, 207, 218, 220, 230, 235, 245, 265, 273, 283, 290, 297, 312, 315, 337, 343, 375, 385, 393, 405, 407, 417, 428, 465, 473, 493, 503, 510, 542 ]
[ "nonn" ]
A175309
[ 2, 3, 5, 18713, 5, 683747, 17, 98303867, 13, 60335249851, 137, 1169769749111, 8021749, 3945769040698829, 1071065111, 159067808851610400, 1613902553, 6919940122097246000, 1797595814863 ]
[ "nonn", "more" ]
A373876
[ 1, 33, 8163, 17116353, 317193401763 ]
[ "nonn", "hard", "more" ]
A312722
[ 1, 4, 8, 15, 18, 24, 26, 31, 38, 40, 48, 48, 54, 61, 62, 72, 70, 77, 84, 84, 96, 92, 100, 107, 106, 120, 114, 123, 130, 128, 144, 136, 146, 153, 150, 168, 158, 169, 176, 172, 192, 180, 192, 199, 194, 216, 202, 215, 222, 216 ]
[ "nonn" ]
A298607
[ 1024, 2048, 4096, 131072, 1048576, 2097152, 4194304, 8388608, 67108864, 536870912, 1073741824, 274877906944, 1099511627776, 2199023255552, 4398046511104, 8796093022208, 17592186044416, 35184372088832, 70368744177664, 140737488355328, 281474976710656, 1125899906842624 ]
[ "nonn", "base" ]
A103097
[ 2, 4, 8, 2960, 4571, 5201, 17864, 21922, 89375, 147676 ]
[ "more", "nonn" ]
A060193
[ 2, 14, 154, 2926, 67298, 2490026, 102091066, 5410826498, 319238763382, 22665952200122, 1654614510608906, 147260691444192640, 14284287070086685000, 1.5284187164992754e+21, 1.6659764009842102e+23, 2.1824290852893152e+25 ]
[ "nonn" ]
A164986
[ 50, 1682, 3.9712731387026955e+21, 3.6768073785209474e+44 ]
[ "nonn" ]
A007120
[ 1, 1, -2, -3, 16, -10, -114, 462, -496, -2952, 16920, -31680, -130008, 1707576, -14259504, 138375720, -1652311680, 22238105280, -321916019904, 4959460972224, -81123831838080, 1405677742882560, -25732182778727040, 496324987642915200, -10061966722201901000 ]
[ "sign" ]
A074618
[ 2, 14, 106, 854, 7186, 62174, 547066, 4861094, 43437346, 389373614, 3496550026, 31429887734, 282673677106, 2543086531454, 22882895970586, 205921649672774, 1853172776742466, 16677944639119694, 150098449994264740 ]
[ "easy", "nonn" ]
A383420
[ 0, 0, 6, 8, 16, 24, 30, 38 ]
[ "nonn", "hard", "more" ]
A044595
[ 27, 91, 155, 223, 283, 347, 411, 475, 539, 603, 667, 735, 795, 859, 923, 987, 1051, 1115, 1179, 1247, 1307, 1371, 1435, 1499, 1563, 1627, 1691, 1791, 1819, 1883, 1947, 2011, 2075, 2139, 2203, 2271, 2331, 2395, 2459, 2523 ]
[ "nonn", "base" ]
A207314
[ 216, 46656, 7791488, 1274682671, 205235353935, 32960886054362, 5287481507599689, 847996342709895800, 135988221568912050000, 2.1807179762496937e+22, 3.496992901399897e+24 ]
[ "nonn" ]
A347156
[ 0, 0, 0, 0, 0, 4, 0, 4, 0, 4, 0, 13, 0, 4, 9, 4, 0, 13, 0, 4, 9, 4, 0, 13, 0, 4, 9, 4, 0, 38, 0, 4, 9, 4, 25, 13, 0, 4, 9, 29, 0, 13, 0, 4, 34, 4, 0, 13, 0, 29, 9, 4, 0, 13, 25, 53, 9, 4, 0, 38, 0, 4, 58, 4, 25, 13, 0, 4, 9, 78, 0, 13, 0, 4, 34, 4, 49, 13, 0, 29 ]
[ "nonn" ]
A193777
[ 1, 2, 6, 18, 58, 190, 642, 2206, 7746, 27662, 100738, 373550, 1413506, 5457710, 21546466, 87025806, 360264258, 1529624366, 6669850466, 29877013902, 137560725890, 650780790894, 3162711095074, 15774862353614, 80687636530882, 422713072650286, 2265833731786594 ]
[ "nonn" ]
A005552
[ 4, 35, 166, 633, 2276, 8107, 29086, 105460, 386320, 1428664, 5327738, 20014741, 75677726, 287784832, 1099944240, 4223170456, 16280541834, 62992268833, 244536402984, 952154191644, 3717618386556, 14551788319328 ]
[ "nonn", "walk", "more" ]
A016241
[ 1, 14, 141, 1246, 10277, 81270, 624877, 4710062, 34985973, 256995046, 1871524733, 13536029598, 97364345989, 697223254742, 4974599780109, 35386420442254, 251090274984725, 1777943916226758, 12567479361589404, 88703587219138430, 625312500662044500 ]
[ "nonn", "easy" ]
A175362
[ 1, 4, 4, 0, 0, 0, 0, 0, 4, 8, 0, 0, 0, 0, 0, 0, 4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 8, 0, 0, 0, 0, 0, 0, 8, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 8, 0, 0, 0, 0, 0, 0, 8, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 8, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ]
[ "nonn" ]
A151180
[ 1, 3, 12, 50, 227, 1047, 4939, 23571, 113575, 550785, 2685286, 13143538, 64538881, 317716079, 1567357416, 7745417246, 38330815841, 189923526167, 942013070950, 4676466466360, 23233166431451, 115500619414161, 574524637022633, 2859238829041077, 14235846954865104, 70906304719276780, 353293684393014700 ]
[ "nonn", "walk" ]
A044555
[ 36, 85, 134, 183, 232, 258, 281, 330, 379, 428, 477, 526, 575, 601, 624, 673, 722, 771, 820, 869, 918, 944, 967, 1016, 1065, 1114, 1163, 1212, 1261, 1287, 1310, 1359, 1408, 1457, 1506, 1555, 1604, 1630, 1653, 1702, 1751, 1812 ]
[ "nonn", "base" ]
A009954
[ 1, 4, 17, 34, 64, 93, 153, 181, 262, 298, 422, 445, 593, 621, 824, 826, 1058, 1061, 1359, 1325, 1656, 1618, 2028, 1941, 2387, 2293, 2830, 2674, 3252, 3085, 3765, 3525, 4250, 3994, 4834, 4493, 5381, 5021, 6036, 5578, 6646, 6165, 7371, 6781, 8044 ]
[ "nonn" ]