id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A095704
[ 1, 2, 0, 3, 0, -1, 4, 0, -4, 0, 5, 0, -10, 0, 1, 6, 0, -20, 0, 6, 0, 7, 0, -35, 0, 21, 0, -1, 8, 0, -56, 0, 56, 0, -8, 0, 9, 0, -84, 0, 126, 0, -36, 0, 1, 10, 0, -120, 0, 252, 0, -120, 0, 10, 0, 11, 0, -165, 0, 462, 0, -330, 0, 55, 0, -1, 12, 0, -220, 0, 792, 0, -792, 0, 220, 0, -12, 0, 13, 0, -286, 0, 1287, 0 ]
[ "sign", "tabl" ]
A232298
[ 1, 355, 17759, 718483, 31119789, 1370434057, 60054788123, 2629547976059, 115168967578383, 5044363984412427, 220938351417726200, 9676874008509774000, 423837490846852100000, 1.8563663237964339e+22, 8.130700775802057e+23 ]
[ "nonn" ]
A282793
[ 127, 196, 233, 289, 368, 380, 401, 462, 519, 568, 596, 619, 627, 655, 669, 693, 716, 729, 767, 796, 820, 849, 858, 888, 965, 996, 1029, 1035, 1044, 1114, 1179, 1210, 1251, 1277, 1291, 1308, 1332, 1343, 1431, 1457, 1488, 1496, 1499 ]
[ "nonn" ]
A039411
[ 24, 42, 124, 142, 204, 214, 234, 240, 241, 243, 245, 246, 247, 248, 249, 254, 264, 274, 284, 294, 324, 342, 402, 412, 420, 421, 423, 425, 426, 427, 428, 429, 432, 452, 462, 472, 482, 492, 524, 542, 624, 642, 724, 742, 824, 842, 924, 942, 1024, 1042 ]
[ "nonn", "base", "easy" ]
A200407
[ 1, 9, 131, 209, 3051, 44539, 71059, 1037331, 15143129, 24159851, 352689489, 5148619321, 8214278281, 119913388929, 1750515426011, 2792830455689, 40770199546371, 595170096224419, 949554140655979, 13861747932377212, 202356082200876450, 322845614992577150 ]
[ "nonn", "easy" ]
A156457
[ 1, 4, 0, 18, 90, 5154, 19368, 2108280, 31103100, 3164432181, 105602337600, 14188463179758, 817218706478195 ]
[ "nonn" ]
A286126
[ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 42, 90, 100, 120, 156, 1000, 3615, 5219, 6174, 9723, 10000, 18278, 22620, 47988, 54240, 100000, 551880, 837930, 1000000, 2000718, 10000000, 12204240, 12356630, 25137930, 40358373, 54066635, 62193780, 100000000, 133878822, 168751484 ]
[ "nonn", "base" ]
A340758
[ 0, 0, 0, 0, 1, 0, 0, 0, 1, 1, 2, 3, 4, 5, 7, 8, 10, 12, 13, 15, 18, 18, 22, 23, 27, 28, 32, 31, 38, 37, 41, 42, 49, 46, 53, 51, 62, 59, 70, 65, 82, 73, 89, 81, 99, 89, 108, 96, 118, 104, 128, 114, 142, 122, 153, 133, 167, 142, 178, 153, 195, 167, 207, 176, 225, 190, 243, 204 ]
[ "nonn" ]
A108021
[ 1, 1, 2, 5, 21, 170, 5461, 1398101, 11453246122, 24019198012642644, 4.126466797617934e+26, 1.4867163465687081e+43, 9.202328462387418e+69 ]
[ "base", "easy", "nonn" ]
A181369
[ 1, 2, 11, 44, 175, 682, 2617, 9920, 37232, 138600, 512412, 1883328, 6887056, 25074080, 90935120, 328658944, 1184206208, 4255136384, 15251769536, 54544092160, 194662703872, 693427554816, 2465864757504, 8754793857024 ]
[ "nonn", "easy" ]
A315784
[ 1, 6, 6, 12, 12, 22, 22, 26, 32, 30, 40, 44, 46, 50, 50, 58, 64, 60, 72, 70, 74, 86, 82, 90, 86, 96, 106, 98, 106, 110, 114, 120, 122, 130, 126, 130, 142, 142, 144, 144, 156, 158, 158, 166, 166, 172, 176, 182, 184, 182 ]
[ "nonn" ]
A162372
[ 1, 3, 8, 15, 21, 23, 29, 40, 47, 55, 68, 87, 92, 108, 121, 144, 155, 175, 204, 215, 232, 266, 283, 300, 329, 357, 380, 411, 442, 470, 513, 556, 561, 607, 654, 671, 706, 746, 789, 836, 865, 903, 950, 991, 1038, 1124, 1129, 1188, 1277, 1276, 1326, 1399, 1436 ]
[ "nonn" ]
A141992
[ 103, 277, 509, 683, 857, 1031, 1321, 1553, 1669, 1901, 2017, 2423, 2539, 2713, 2887, 3061, 3119, 3467, 3583, 3931, 3989, 4337, 4801, 5323, 5381, 5903, 6367, 6599, 6947, 7121, 7237, 7411, 7643, 7759, 7817, 7933, 8513, 8629, 8803, 8861, 9151, 9209, 10079 ]
[ "nonn", "easy" ]
A330017
[ 1, 1, 3, 6, 16, 21, 102, 109, 565, 826, 4913, 4924, 28036, 28049, 378218, 427646, 1841532, 1841549, 29704312, 29704331, 182590131, 194454702, 3660242371, 3660242394, 17058569521, 17059419626, 308650641577, 311298706504, 1436650115240, 1436650115269 ]
[ "nonn" ]
A295920
[ 1, 1, 1, 3, 1, 1, 1, 3, 3, 1, 1, 1, 1, 1, 1, 8, 1, 1, 1, 1, 1, 1, 1, 1, 3, 1, 3, 1, 1, 1, 1, 3, 1, 1, 1, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 3, 1, 1, 1, 1, 1 ]
[ "nonn" ]
A254159
[ 1, 4, 9, 2, 4, 1, 8, 0, 8 ]
[ "nonn", "cons" ]
A163485
[ 0, 3, 1, 2, 14, 15, 13, 12, 6, 7, 5, 4, 8, 11, 9, 10, 58, 57, 59, 56, 62, 63, 61, 60, 54, 55, 53, 52, 50, 49, 51, 48, 26, 25, 27, 24, 30, 31, 29, 28, 22, 23, 21, 20, 18, 17, 19, 16, 32, 35, 33, 34, 46, 47, 45, 44, 38, 39, 37, 36, 40, 43, 41, 42, 234, 233, 235, 232, 228, 229 ]
[ "nonn" ]
A264633
[ 4, 32, 280, 4032, 50353, 604916, 7907841, 93847752, 1194621651, 14564772393, 178963281032, 2216731977253, 27167583000228, 334759250329245, 4121109559810052, 50670812782007910, 623796135037373400 ]
[ "nonn" ]
A091403
[ 11, 14, 15, 17, 19, 20, 21, 24, 27, 32, 36, 49 ]
[ "nonn", "fini", "full" ]
A112579
[ 0, 8, 900, 366336, 378028800, 833156928000, 3477528928742400, 25183876050321410000, 2.9605817731200003e+23, 5.362158372805111e+27, 1.4345822739542837e+32 ]
[ "nonn", "easy" ]
A051942
[ 0, 10, 21, 33, 46, 60, 75, 91, 108, 126, 145, 165, 186, 208, 231, 255, 280, 306, 333, 361, 390, 420, 451, 483, 516, 550, 585, 621, 658, 696, 735, 775, 816, 858, 901, 945, 990, 1036, 1083, 1131, 1180, 1230, 1281, 1333, 1386, 1440, 1495, 1551, 1608, 1666 ]
[ "easy", "nice", "nonn" ]
A213711
[ 0, 1, 2, 3, 3, 4, 4, 4, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9 ]
[ "nonn" ]
A024231
[ 0, 1, -2, -21, -228, 5077, 631834, 37060863, 791278008, -198249695063, -43572627802442, -5264284574193645, -189769141997109800, 100566175129622050000, 2.6413749605638836e+22 ]
[ "sign" ]
A183774
[ 2, 5, 13, 33, 85, 217, 557, 1425, 3653, 9353, 23965, 61377, 157237, 402745, 1031693, 2642673, 6769445, 17340137, 44417917, 113778465, 291450133, 746563993, 1912364525, 4898620497, 12548078597, 32142560585, 82334874973, 210905117313, 540244617205, 1383865086457, 3544843555277 ]
[ "nonn" ]
A153034
[ 4, 8, 9, 16, 17, 18, 20, 32, 33, 34, 36, 37, 40, 41, 64, 65, 66, 68, 69, 72, 73, 74, 80, 81, 82, 84, 128, 129, 130, 132, 133, 136, 137, 138, 144, 145, 146, 148, 149, 160, 161, 162, 164, 165, 168, 169, 256, 257, 258, 260, 261, 264, 265, 266, 272, 273, 274, 276, 277 ]
[ "base", "easy", "nonn" ]
A000959
[ 1, 3, 7, 9, 13, 15, 21, 25, 31, 33, 37, 43, 49, 51, 63, 67, 69, 73, 75, 79, 87, 93, 99, 105, 111, 115, 127, 129, 133, 135, 141, 151, 159, 163, 169, 171, 189, 193, 195, 201, 205, 211, 219, 223, 231, 235, 237, 241, 259, 261, 267, 273, 283, 285, 289, 297, 303 ]
[ "nonn", "easy", "nice", "core" ]
A285293
[ 1, 1, 2, 5, 8, 11, 23, 39, 58, 102, 160, 250, 392, 614, 929, 1426, 2155, 3221, 4816, 7124, 10516, 15389, 22448, 32549, 47027, 67586, 96779, 138052, 196078, 277606, 391570, 550516, 771442, 1077818, 1501214, 2084899, 2887759, 3988792, 5495381, 7552127, 10353345 ]
[ "nonn" ]
A088882
[ 101, 121, 131, 141, 151, 161, 171, 181, 191, 202, 212, 232, 242, 252, 262, 272, 282, 292, 303, 313, 323, 343, 353, 363, 373, 383, 393, 404, 414, 424, 434, 454, 464, 474, 484, 494, 505, 515, 525, 535, 545, 565, 575, 585, 595, 606, 616, 626, 636, 646, 656, 676 ]
[ "base", "nonn" ]
A241768
[ 0, 0, 0, 1, 3, 17, 101, 890, 11468, 239728 ]
[ "nonn", "hard", "more" ]
A240569
[ 7, 47, 73, 107, 157, 167, 179, 193, 227, 263, 313, 347, 421, 467, 503, 587, 613, 661, 673, 719, 733, 757, 877, 887, 983, 997, 1019, 1093, 1153, 1187, 1213, 1307, 1367, 1381, 1439, 1453, 1487, 1523, 1753, 1823, 1873, 1907, 1933, 1993, 2017, 2027, 2137, 2207, 2341, 2447, 2473, 2593, 2797 ]
[ "nonn", "easy" ]
A167083
[ 1, 30, 870, 25230, 731670, 21218430, 615334470, 17844699630, 517496289270, 15007392388830, 435214379276070, 12621216999006030, 366015292971174850, 10614443496164071000, 307818861388758060000, 8.926746980273983e+21 ]
[ "nonn" ]
A256425
[ 6, 7, 7, 8, 0, 7, 1, 6, 3, 7, 8, 4, 2, 3, 2, 2, 1, 0, 5, 3, 3, 7, 2, 4, 6, 1, 2, 4, 5, 4, 9, 1, 4, 3, 8, 3, 1, 6, 9, 3, 1, 2, 5, 7, 9, 6, 3, 2, 5, 5, 6, 2, 0, 4, 1, 5, 2, 6, 8, 5, 6, 2, 3, 1, 3, 2, 5, 5, 8, 8, 2, 1, 3, 1, 6, 7, 1, 5, 3, 6, 5, 4, 0, 5, 2, 7, 2, 4, 7, 8, 2, 6, 8, 2, 1, 4, 2, 9 ]
[ "nonn", "cons" ]
A268365
[ 1, 36, 2700, 643680, 190188000, 128247235200, 114921318153600, 164433011758848000, 312067875406065430000, 8.675497919193506e+23, 2.9865810093093376e+27 ]
[ "nonn" ]
A281280
[ 1, 2, 6, 5, 20, 59, 24, 151, 464, 239, 1888, 351, 6464, 3007, 18816, 49535, 32000, 167679, 423424, 366079, 1315840, 3390463, 563200, 14948351, 5230592, 37810175, 109010944, 42033151, 402472960, 940556287, 132218880, 4032397311, 239927296, 16661807103 ]
[ "nonn", "easy" ]
A016371
[ 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1, 0, 0, 0, -1, 0, 0, 0, -1, 0, 0, 0, -1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, -1, 0, 0, 0, -1, 0, 0, 0, -1, 0, 0, 0, -1, 0, 0, 0, 0 ]
[ "sign", "fini", "full" ]
A007206
[ 1, 0, 0, -2, -6, -18, -54, -168, -534, -1732, -5706, -19038, -64176, -218190, -747180, -2574488, -8918070, -31036560, -108457488, -380390574, -1338495492, -4723664566, -16714545822, -59286878556, -210755970528, -750721297056, -2679075662922, -9577156141654, -34290858526926, -122959225609518 ]
[ "sign", "easy" ]
A191841
[ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 13, 14, 15, 17, 18, 19, 21, 23, 24, 25, 28, 29, 30, 32, 34, 37, 39, 40, 41, 45, 47, 49, 51, 53, 55, 60, 63, 65, 66, 67, 73, 76, 79, 83, 85, 87, 89, 97, 102, 105, 107, 108, 109, 118, 123, 128, 134, 138, 140, 142, 144, 157 ]
[ "nonn" ]
A054850
[ 1, 2, 4, 7, 11, 14, 18, 23, 27, 32, 37, 42, 48, 53, 59, 64, 70, 76, 82, 88, 95, 101, 107, 114, 120, 127, 134, 140, 147, 154, 161, 168, 175, 182, 189, 197, 204, 211, 219, 226, 234, 241, 249, 256, 264, 272, 279, 287, 295, 303, 311, 318, 326, 334, 342, 350, 358, 367 ]
[ "nonn" ]
A362394
[ 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, -1, -5, 1, 1, 1, -2, -11, -14, 1, 1, 1, -3, -17, -11, 56, 1, 1, 1, -4, -23, 10, 381, 736, 1, 1, 1, -5, -29, 49, 976, 2461, 1114, 1, 1, 1, -6, -35, 106, 1841, 3736, -21083, -45156, 1, 1, 1, -7, -41, 181, 2976, 3121, -106910, -449623, -428660, 1 ]
[ "sign", "tabl" ]
A387122
[ 7, 3, 13, 17, 5, 29, 37, 41, 7, 61, 13, 11, 17, 89, 97, 109, 11, 5, 137, 29, 149, 23, 13, 181, 197, 41, 19, 31, 17, 229, 257, 53, 277, 281, 43, 61, 317, 47, 337, 349, 19, 73, 11, 389, 397, 401, 17, 449, 457, 461, 67, 37, 97, 101, 47, 23, 541, 109, 557, 113, 569, 31 ]
[ "nonn", "new" ]
A239575
[ 0, 0, 7, 176, 1976, 12565, 57275, 207018, 634166, 1711262, 4181915, 9428657, 19892816, 39684027, 75473209, 137721045, 242391212, 413215132, 684733527, 1106194950, 1746637600, 2701244609, 4099429895, 6114748948, 8977257362, 12988406970, 18539308619, 26132434991 ]
[ "nonn", "easy" ]
A154319
[ 3, 5, 7, 11, 13, 23, 31, 37, 41, 43, 71, 73, 101, 131, 151, 163, 167, 173, 181, 197, 211, 233, 251, 263, 277, 283, 317, 353, 373, 383, 401, 431, 433, 467, 491, 547, 557, 571, 587, 593, 607, 643, 653, 701, 727, 733, 761, 823, 857, 881, 907, 911, 937, 983, 991 ]
[ "nonn", "easy" ]
A233373
[ 98, 1046, 10496, 100400, 905636, 7828287, 65352179, 530462028, 4209012649, 32785741523, 251523868602 ]
[ "nonn" ]
A289935
[ 1, 2, 6, 15, 31, 60, 124, 255, 511, 1022, 2046, 4082, 8178, 16363, 32747, 65511, 131047, 261915, 524059, 1048571, 2097147, 4194107, 8388411, 16777019, 33554235, 67108664, 134217528, 268435257, 536870713, 1073741685, 2147483509, 4294966516, 8589933812 ]
[ "nonn", "easy" ]
A147671
[ 17, 2685817, 4.5553861923355724e+27, 3.716169041626628e+29, 8.591830681082909e+63, 1.521016397642379e+142 ]
[ "nonn" ]
A309068
[ 1, 2, 11, 362, 7954 ]
[ "nonn", "more" ]
A088279
[ 1, 22, 303, 4004, 50005, 600006, 7000007, 80000008, 900000009, 1000000001, 11000000011, 120000000021, 1300000000031, 14000000000041, 150000000000051, 1600000000000061, 17000000000000072, 180000000000000100 ]
[ "base", "easy", "nonn" ]
A001774
[ 2, 4, 6, 16, 20, 36, 54, 60, 96, 124, 150, 252, 356, 460, 612, 654, 664, 698, 702, 972, 1188, 1312, 3062, 4214, 4288, 5280, 9100, 20262, 21676, 24828, 46144, 62148, 79974, 117784, 211464, 310744, 310754, 429318, 601158, 605394 ]
[ "hard", "nonn" ]
A034335
[ 0, 0, 0, 0, 1, 5, 17, 52, 146, 388, 975, 2365 ]
[ "nonn" ]
A003376
[ 9, 136, 263, 390, 517, 644, 771, 898, 1025, 1152, 2195, 2322, 2449, 2576, 2703, 2830, 2957, 3084, 3211, 4381, 4508, 4635, 4762, 4889, 5016, 5143, 5270, 6567, 6694, 6821, 6948, 7075, 7202, 7329, 8753, 8880, 9007, 9134, 9261, 9388, 10939, 11066, 11193, 11320, 11447, 13125 ]
[ "nonn", "easy" ]
A178729
[ 0, 2, 4, 10, 8, 10, 20, 18, 16, 18, 20, 42, 40, 42, 36, 34, 32, 34, 36, 42, 40, 42, 84, 82, 80, 82, 84, 74, 72, 74, 68, 66, 64, 66, 68, 74, 72, 74, 84, 82, 80, 82, 84, 170, 168, 170, 164, 162, 160, 162, 164, 170, 168, 170, 148, 146, 144, 146, 148, 138, 136, 138, 132, 130 ]
[ "nonn", "look" ]
A112803
[ 1, 1, -1, -1, 2, 0, -2, 2, 1, -4, 1, 4, -4, -1, 6, -3, -6, 7, 3, -10, 4, 10, -12, -6, 18, -5, -18, 20, 8, -30, 10, 29, -31, -12, 46, -17, -44, 47, 20, -68, 23, 66, -72, -31, 104, -33, -98, 107, 44, -156, 51, 144, -154, -61, 220, -75, -206, 220, 90, -310, 104, 290, -312, -131, 442, -143, -408, 437, 178, -618, 202 ]
[ "sign" ]
A294621
[ 1, 1, 1, 1, 2, 2, 2, 3, 4, 4, 4, 5, 6, 7, 8, 9, 10, 11, 13, 14, 16, 18, 20, 21, 23, 26, 29, 32, 35, 38, 41, 45, 49, 53, 59, 64, 69, 73, 80, 87, 94, 101, 109, 117, 125, 134, 145, 156, 167, 178, 190, 202, 217, 232, 249, 265, 282, 299, 318, 339, 361, 384, 408, 432, 457, 484, 514, 545, 578, 610, 646 ]
[ "nonn" ]
A033008
[ 11, 22, 33, 44, 55, 66, 77, 88, 99, 1100, 1122, 1133, 1144, 1155, 1166, 1177, 1188, 1199, 2200, 2211, 2233, 2244, 2255, 2266, 2277, 2288, 2299, 3300, 3311, 3322, 3344, 3355, 3366, 3377, 3388, 3399, 4400, 4411, 4422, 4433 ]
[ "nonn", "base" ]
A233175
[ 3, 8, 80, 800, 8576, 92672, 1009664, 11018240, 120356864, 1315045376, 14370209792, 157036838912, 1716116258816, 18754008252416, 204947383648256, 2239705722650624, 24475955615498240, 267478202279002100 ]
[ "nonn" ]
A087205
[ 1, 2, 0, 8, -16, 64, -192, 640, -2048, 6656, -21504, 69632, -225280, 729088, -2359296, 7634944, -24707072, 79953920, -258736128, 837287936, -2709520384, 8768192512, -28374466560, 91821703168, -297141272576, 961569357824, -3111703805952 ]
[ "easy", "sign" ]
A100527
[ 1, 3, 2, 6, 7, 4, 5, 12, 10, 9, 13, 8, 11, 15, 14, 24, 19, 20, 17, 18, 22, 21, 29, 16, 26, 25, 28, 27, 23, 42, 37, 48, 34, 33, 38, 40, 31, 35, 46, 36, 43, 30, 41, 45, 44, 39, 53, 32, 51, 52, 49, 50, 47, 56, 57, 54, 55, 62, 61, 81, 59, 58, 66, 96, 69, 63, 71, 70, 65, 68, 67, 80 ]
[ "nonn" ]
A222420
[ 2, 10, 752, 179228736, 1.0074382205972352e+22 ]
[ "nonn", "more" ]
A101977
[ 1, 2, 3, 5, 7, 11, 15, 22, 31, 43, 58, 74, 97, 131, 171, 222, 277, 349, 447, 564, 698, 868, 1074, 1321, 1601, 1967, 2398, 2911, 3513, 4235, 5083, 6071, 7242, 8637, 10229, 12102, 14293, 16848, 19802, 23271, 27276, 31846, 37132, 43196, 50191, 58238, 67425, 77946 ]
[ "nonn" ]
A067725
[ 0, 9, 24, 45, 72, 105, 144, 189, 240, 297, 360, 429, 504, 585, 672, 765, 864, 969, 1080, 1197, 1320, 1449, 1584, 1725, 1872, 2025, 2184, 2349, 2520, 2697, 2880, 3069, 3264, 3465, 3672, 3885, 4104, 4329, 4560, 4797, 5040, 5289, 5544, 5805, 6072, 6345, 6624 ]
[ "nonn", "easy" ]
A042918
[ 31, 63, 787, 7933, 16653, 41239, 99131, 140370, 239501, 619372, 3955733, 4575105, 8530838, 13105943, 21636781, 78016286, 99653067, 875240822, 3600616355, 4475857177, 12552330709, 17028187886 ]
[ "nonn", "frac", "easy" ]
A162571
[ 5, 8, 222, 434, 696, 828, 2112, 2992, 4224, 4554, 6336, 8448, 8888, 20202, 21712, 21812, 22722, 23832, 25652, 25952, 26862, 27672, 29092, 29292, 41114, 42024, 42724, 43334, 43734, 44544, 47174, 47974, 60106, 61116, 62526, 62626, 63936, 64146, 64446, 64946 ]
[ "nonn", "base" ]
A229025
[ 1, 26, 417, 5334, 59829, 616602, 5996089, 55931678, 505925277, 4470884418, 38804443041, 332070466182, 2809908472645, 23562316644074, 196128590350473, 1622684846427246, 13358308842842732, 109510501632625170, 894623468678425600, 7286920685445870000 ]
[ "nonn", "easy" ]
A192017
[ 1, 2, 1, 4, 4, 2, 7, 10, 9, 2, 12, 21, 27, 15, 3, 20, 40, 65, 57, 25, 3, 33, 72, 138, 163, 114, 37, 4, 54, 125, 270, 394, 378, 206, 54, 4, 88, 212, 500, 854, 1033, 796, 354, 74, 5, 143, 354, 891, 1716, 2479, 2463, 1571, 574, 100, 5, 232, 585, 1545, 3265, 5424, 6559, 5469, 2917, 896, 130, 6 ]
[ "nonn", "tabl" ]
A084996
[ 22, 33, 35, 55, 57, 77, 235, 237, 253, 323, 327, 335, 355, 377, 527, 533, 535, 537, 553, 573, 723, 737, 753, 755, 2227, 2253, 2257, 2323, 2327, 2335, 2353, 2533, 2537, 2573, 2577, 2722, 2723, 2733, 2735, 2757, 2773, 3223, 3227, 3233, 3235, 3273, 3277 ]
[ "nonn", "base" ]
A166303
[ 1, 46, 2070, 93150, 4191750, 188628750, 8488293750, 381973218750, 17188794843750, 773495767968750, 34807309558592716, 1566328930136625700, 70484801856146055000, 3.1718160835264785e+21, 1.4273172375868728e+23 ]
[ "nonn" ]
A334964
[ 3, 10, 17, 29, 36, 43, 55, 62, 66, 73, 92, 99, 118, 127, 129, 134, 141, 153, 155, 160, 179, 190, 197, 216, 218, 225, 244, 251, 253, 258, 277, 281, 307, 314, 342, 345, 349, 352, 359, 368, 371, 378, 397, 405, 408, 415, 433, 434, 466, 469, 471, 476, 495, 514, 521, 532, 540, 547, 557, 560, 566, 567 ]
[ "nonn" ]
A280980
[ 1, 2, 6, 1, 24, 7, 96, 31, 384, 127, 1632, 31, 8064, 1663, 24576, 8191, 100352, 22527, 455680, 154623, 1361920, 3676159, 503808, 14847999, 1523712, 62242815, 10264576, 219275263, 111755264, 603176959, 1384153088, 3883761663, 85393408, 16889741311, 5026349056 ]
[ "nonn", "easy" ]
A293837
[ 1, 2, 2, 3, 1, 0, 0, 1, 2, 3, 4, 4, 3, 2, 1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 16, 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 ]
[ "nonn" ]
A107007
[ 3, 11, 59, 83, 107, 131, 179, 227, 251, 347, 419, 443, 467, 491, 563, 587, 659, 683, 827, 947, 971, 1019, 1091, 1163, 1187, 1259, 1283, 1307, 1427, 1451, 1499, 1523, 1571, 1619, 1667, 1787, 1811, 1907, 1931, 1979, 2003, 2027, 2099, 2243, 2267 ]
[ "nonn", "easy" ]
A021656
[ 0, 0, 1, 5, 3, 3, 7, 4, 2, 3, 3, 1, 2, 8, 8, 3, 4, 3, 5, 5, 8, 2, 8, 2, 2, 0, 8, 5, 8, 8, 9, 5, 7, 0, 5, 5, 2, 1, 4, 7, 2, 3, 9, 2, 6, 3, 8, 0, 3, 6, 8, 0, 9, 8, 1, 5, 9, 5, 0, 9, 2, 0, 2, 4, 5, 3, 9, 8, 7, 7, 3, 0, 0, 6, 1, 3, 4, 9, 6, 9, 3, 2, 5, 1, 5, 3, 3, 7, 4, 2, 3, 3, 1, 2, 8, 8, 3, 4, 3 ]
[ "nonn", "cons" ]
A223388
[ 11, 31, 105, 342, 1044, 3159, 9735, 28302, 87129, 264482, 788647, 2349292, 7156565, 21386626, 64219045, 193101704, 578745219, 1737091402, 5224558074, 15601139099, 46951619088, 141106623033, 422766761598, 1266157491741, 3810620087462 ]
[ "nonn" ]
A035627
[ 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 4, 4, 4, 4, 4, 10, 11, 11, 11, 11, 22, 25, 26, 26, 26, 44, 51, 54, 55, 55, 84, 98, 105, 108, 109, 153, 178, 193, 200, 203, 270, 313, 341, 356, 363, 462, 532, 582, 611, 626, 771, 883, 968, 1021, 1050, 1259, 1431, 1571, 1663, 1717, 2017 ]
[ "nonn" ]
A330290
[ 1, 1, 11, 101, 3, 9, 7, 61, 1821477701, 311, 449, 89, 29, 37, 121, 349, 1047, 73, 2741, 59, 5527, 21, 487, 3.679724250117317e+21, 137, 257, 33, 99, 27, 47, 17, 19, 13, 39, 63, 23, 557, 53, 159, 117, 351, 81, 3439913, 677, 83, 197, 151, 453, 211, 1033, 239296537198126660000, 167, 501 ]
[ "nonn", "more", "hard", "base" ]
A260467
[ 34, 92, 658, 5034, 57524, 1095328, 24138984, 741446708, 35549850396, 2210679193297, 185698612792568, 22953437585181164, 3891199671596924000, 894945430246534200000, 2.9213196102540873e+23 ]
[ "nonn" ]
A277547
[ 1, 2, 3, 4, 5, 6, 7, 8, 1, 1, 2, 3, 4, 5, 6, 7, 8, 2, 1, 2, 3, 4, 5, 6, 7, 8, 3, 1, 2, 3, 4, 5, 6, 7, 8, 4, 1, 2, 3, 4, 5, 6, 7, 8, 5, 1, 2, 3, 4, 5, 6, 7, 8, 6, 1, 2, 3, 4, 5, 6, 7, 8, 7, 1, 2, 3, 4, 5, 6, 7, 8, 8, 1, 2, 3, 4, 5, 6, 7, 8, 1, 1, 2, 3, 4, 5 ]
[ "nonn", "easy" ]
A102409
[ 0, 1, 0, 0, 0, -20, 8, 0, 0, 20280, -6530, -1275, 362, 3, 0, -8749440, 21627600, -4871940, -66510, 48300, 390, 0, -261763004160, 72965762016, 13117344800, -3757930680, 72406040, 13101144, 90440, 0, -974260634054400, -1140185248443360, 353509119454680, -8136128999880, -3234018579750 ]
[ "sign", "tabf", "uned" ]
A270213
[ 4, 0, 36, -29, 97, -93, 193, -189, 317, -309, 473, -473, 661, -637, 861, -853, 1101, -1093, 1389, -1401, 1701, -1637, 1965, -1917, 2261, -2213, 2625, -2617, 3025, -2937, 3385, -3373, 3869, -3861, 4421, -4457, 4981, -4841, 5385, -5257, 5797, -5693, 6329 ]
[ "sign", "easy" ]
A289159
[ 0, 0, 1, 4, 17, 72, 342, 1905, 12156, 89268, 738911, 6798758, 68520038, 748502910, 8788173335, 110193643134, 1468070949946, 20694573672876, 307578336064984, 4805384561143819, 78708210390090370, 1348365584611572700, 24108682771962823000, 449043803118075500000 ]
[ "nonn" ]
A386964
[ 2, 23, 235, 2357, 23571, 235713, 2357137, 23571379, 235713793, 2357137939, 23571379391, 235713793917, 2357137939171, 23571379391713, 235713793917137, 2357137939171373, 23571379391713740, 235713793917137380, 2357137939171374000, 23571379391713740000, 235713793917137400000 ]
[ "nonn", "base", "easy" ]
A129211
[ 1, 2, 4, 10, 20, 68, 110, 164, 220, 340, 610, 772, 820, 1010, 1210, 1220, 1510, 2020, 2420, 2530, 2788, 3020, 3740, 3860, 5060, 6710, 7004, 7370, 8020, 9020, 9316, 11110, 11810, 13124, 13420, 13612, 13940, 14740, 16610, 19580, 20740, 20876, 22220 ]
[ "nonn" ]
A047214
[ 0, 1, 1, 1, 4, 4, 1, 1, 1, 9, 9, 9, 12, 8, 10, 9, 16, 10, 11, 16, 15, 20, 18, 16, 24, 25, 19, 21, 28, 25, 16, 25, 31, 33, 29, 28, 36, 30, 27, 25, 40, 36, 41, 37, 36, 41, 42, 33, 43, 49, 49, 40, 52, 46, 49, 49, 49, 57, 57, 49, 60, 47, 36, 57, 64, 64, 64, 64, 64, 64, 64, 64, 72, 73 ]
[ "easy", "nonn" ]
A274928
[ 1, 3, 5, 6, 7, 15, 10, 17, 13, 25, 14, 31, 20, 33, 34, 38, 35, 36, 23, 41, 52, 47, 53, 44, 30, 54, 61, 50, 51, 57, 71, 78, 81, 72, 79, 86, 93, 74, 91, 89, 98, 102, 105, 56, 106, 82, 97, 88, 95, 87, 59, 110, 68, 85, 125, 84, 126, 128, 116, 144, 92, 127, 142 ]
[ "nonn" ]
A021674
[ 1, 24, 397, 5676, 75529, 966048, 12071269, 148688052, 1814929057, 22024557672, 266258052541, 3210803780028, 38655303353785, 464868906584496, 5586469016901013, 67101965327432000, 805738280990713000 ]
[ "nonn", "easy" ]
A275073
[ 1, 1, 1, 1, 1, 1, 1, 2, 4, 8, 16, 32, 64, 160, 400, 1000, 2500, 6250, 15625, 46875, 140625, 421875, 1265625, 3796875, 11390625, 39487500, 136890000, 474552000, 1645113600, 5703060480, 19770609664, 77181418496, 301304383744, 1176245959616, 4591883265424 ]
[ "nonn" ]
A338754
[ 0, 11, 22, 33, 44, 55, 66, 77, 88, 99, 1100, 1111, 1122, 1133, 1144, 1155, 1166, 1177, 1188, 1199, 2200, 2211, 2222, 2233, 2244, 2255, 2266, 2277, 2288, 2299, 3300, 3311, 3322, 3333, 3344, 3355, 3366, 3377, 3388, 3399, 4400, 4411, 4422, 4433, 4444, 4455, 4466 ]
[ "base", "nonn" ]
A248330
[ 1, 1, 4, 160, 107520, 1722040320, 854352419880960, 1.618539902777363e+22, 1.3931397052191275e+31, 6.320891129190184e+41, 1.7210417219293606e+54 ]
[ "nonn", "easy" ]
A159818
[ 1, 1, -1, 0, 0, 0, 1, -2, 0, 0, -2, -1, -1, 0, 0, 2, 0, 0, 0, 0, 1, 0, 2, 0, 0, -2, 0, 2, 0, 0, 1, 1, 0, 0, 0, 0, -2, 2, 0, 0, 0, 0, 1, 0, 0, -2, 0, 0, 0, 0, 0, -2, 0, 0, 0, 0, -1, -2, 0, 0, -2, -1, 0, 0, 0, 2, 0, 2, 0, 0, -2, 0, 1, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -2, 0, 0, 1, 0, 2, 0, 0, 0, 0, 2, 0, 0, 2, 1, -2, 0, 0 ]
[ "sign" ]
A110487
[ 9, 25, 49, 81, 121, 169, 225, 289, 361, 529, 625, 841, 961, 1225, 1369, 1521, 1681, 1849, 2025, 2209, 2401, 2601, 2809, 3025, 3481, 3721, 4225, 4489, 4761, 5041, 5329, 5929, 6241, 6889, 7225, 7921, 8281, 9025, 9409, 10201, 10609, 11449, 11881, 12769 ]
[ "nonn" ]
A118414
[ 1, 9, 35, 105, 279, 693, 1651, 3825, 8687, 19437, 42987, 94185, 204775, 442341, 950243, 2031585, 4325343, 9175005, 19398619, 40894425, 85983191, 180355029, 377487315, 788529105, 1644167119, 3422552013, 7113539531, 14763950025, 30601641927, 63350767557, 130996502467, 270582939585 ]
[ "nonn", "easy" ]
A003836
[ 8, 518400, 203039372390400, 5.1672802748457925e+26, 8.618734695485494e+42, 9.430674341110137e+62 ]
[ "nonn", "easy" ]
A348549
[ 0, 1, 14, 195, 2200, 24013, 255969, 2687317, 27934809, 288342379, 2960920297, 30285890402, 308834717932, 3141625339760, 31895159990436 ]
[ "nonn", "base", "hard", "more" ]
A200970
[ 388, 37254, 3167295, 250149820, 18714498069, 1342587653727, 93360032845673, 6335655315992974, 421865904772827970, 27660730981017838000, 1.7905997374286424e+21, 1.1465449641870958e+23 ]
[ "nonn" ]
A071698
[ 3, 11, 59, 71, 107, 179, 191, 227, 239, 311, 347, 419, 431, 599, 659, 827, 1019, 1031, 1091, 1151, 1319, 1427, 1451, 1487, 1607, 1619, 1667, 1787, 1871, 1931, 2027, 2087, 2111, 2267, 2339, 2591, 2687, 2711, 2999, 3119, 3167, 3251, 3299 ]
[ "nonn" ]
A016112
[ 101, 11, 211, 13, 41, 151, 23, 17, 181, 19, 251, 0, 43, 0, 127, 53, 281, 0, 29, 0, 541, 37, 1, 0, 83, 11551, 1, 139, 47, 0, 523, 0, 1481, 1, 1, 157, 149, 0, 1, 1, 12451, 0, 67, 0, 1, 59, 1, 0, 283, 11177, 2551, 1, 1, 0, 239, 1, 1187, 1, 1, 0, 1453, 0, 1, 79, 881, 1 ]
[ "nonn", "base" ]
A366503
[ 1, 0, 2, 0, 4, 2, 0, 4, 18, 2, 0, 0, 86, 32, 2, 0, 0, 306, 362, 50, 2, 0, 0, 882, 3242, 842, 72, 2, 0, 0, 1764, 24564, 12210, 1682, 98, 2, 0, 0, 1764, 163872, 161158, 32930, 3026, 128, 2, 0, 0, 0, 985032, 1969348, 592652, 76562, 5042, 162, 2 ]
[ "nonn", "tabl" ]
A000230
[ 2, 3, 7, 23, 89, 139, 199, 113, 1831, 523, 887, 1129, 1669, 2477, 2971, 4297, 5591, 1327, 9551, 30593, 19333, 16141, 15683, 81463, 28229, 31907, 19609, 35617, 82073, 44293, 43331, 34061, 89689, 162143, 134513, 173359, 31397, 404597, 212701, 188029, 542603, 265621, 461717, 155921, 544279, 404851, 927869, 1100977, 360653, 604073 ]
[ "nonn", "nice" ]
A053589
[ 1, 2, 1, 2, 1, 6, 1, 2, 1, 2, 1, 6, 1, 2, 1, 2, 1, 6, 1, 2, 1, 2, 1, 6, 1, 2, 1, 2, 1, 30, 1, 2, 1, 2, 1, 6, 1, 2, 1, 2, 1, 6, 1, 2, 1, 2, 1, 6, 1, 2, 1, 2, 1, 6, 1, 2, 1, 2, 1, 30, 1, 2, 1, 2, 1, 6, 1, 2, 1, 2, 1, 6, 1, 2, 1, 2, 1, 6, 1, 2, 1, 2, 1, 6, 1, 2, 1, 2, 1, 30, 1, 2, 1, 2, 1, 6, 1, 2, 1, 2, 1, 6 ]
[ "nonn", "easy" ]
A202138
[ 17, 78, 19, 23, 29, 77, 95, 77, 1, 11, 13, 15, 1, 55 ]
[ "nonn", "frac", "fini", "full" ]
A116106
[ 9, 13, 99, 103, 183, 328, 528, 715, 999, 1003, 6099, 9999, 10003, 13224, 40495, 99999, 100003, 106755, 453288, 999999, 1000003, 2066115, 2975208, 9999999, 10000003, 22145328, 28027683, 99999999, 100000003, 110213248, 110667555 ]
[ "nonn", "base" ]