id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A354352
[ 2, 0, 0, 4, 0, 24, 0, 8, 36, 120, 0, 24, 0, 840, 360, 16, 0, 72, 0, 120, 2520, 9240, 0, 48, 900, 120120, 216, 840, 0, 0, 0, 32, 27720, 2042040, 12600, 144, 0, 38798760, 360360, 240, 0, 0, 0, 9240, 1080, 892371480, 0, 96, ...
[ "nonn" ]
A313878
[ 1, 5, 10, 16, 21, 26, 32, 37, 43, 49, 53, 58, 63, 68, 74, 79, 85, 91, 96, 102, 106, 110, 116, 121, 127, 133, 138, 144, 149, 154, 159, 163, 169, 175, 180, 186, 191, 196, 202, 207, 212, 217, 222, 228, 233, 238, 244, 249, 2...
[ "nonn" ]
A347030
[ 1, 2, 1, 3, 2, 1, 0, 4, 4, 3, 2, 0, -1, -2, -1, 7, 6, 6, 5, 3, 4, 3, 2, -2, -2, -3, -3, -5, -6, -5, -6, 10, 11, 10, 11, 11, 10, 9, 10, 6, 5, 6, 5, 3, 3, 2, 1, -7, -7, -7, -6, -8, -9, -9, -8, -12, -11, -...
[ "sign" ]
A105471
[ 0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 44, 33, 77, 10, 87, 97, 84, 81, 65, 46, 11, 57, 68, 25, 93, 18, 11, 29, 40, 69, 9, 78, 87, 65, 52, 17, 69, 86, 55, 41, 96, 37, 33, 70, 3, 73, 76, 49, 25, 74, 99, 73, 7...
[ "nonn", "easy" ]
A183549
[ 9, 299, 5287, 95101, 1728533, 31363527, 569461759, 10339213765, 187720469393, 3408294462361, 61881741606489, 1123538699592837, 20399220213631984, 370372813824090500, 6724571832069212000, 122092833670153550000 ]
[ "nonn" ]
A387914
[ 2, 17, 74, 275, 972, 3395, 11888, 41934, 149159, 534809, 1931448, 7020299, 25662704, 94286983, 347993756, 1289624318, 4796857039, 17902146389, 67016296388, 251577049756, 946844533397, 3572042253827, 13505406670374, 51166197843500, 194214400833977, 738494264900601, ...
[ "nonn", "easy" ]
A220968
[ 1, 5, 6, 9, 11, 13, 15, 16, 17, 20, 21, 23, 25, 27, 28, 29, 31, 33, 34, 36, 38, 39, 40, 42, 44, 45, 47, 49, 50, 52, 54, 55, 56, 58, 60, 61, 63, 65, 67, 68, 70, 71, 73, 74, 75, 76, 77, 79, 81, 82, 85, 86, 87, 89...
[ "nonn" ]
A068832
[ 3, 5, 7, 311, 15937, 17939, 19973, 39113, 51131, 53717, 53719, 55313, 59753, 91711, 93113, 99119, 111953, 117911, 117917, 117937, 153113, 157931, 159911, 191519, 195971, 311533, 355913, 391711, 391717, 391733, 575131, 575513, 577919, 577931, 579113...
[ "nonn", "base" ]
A281633
[ 1, 10, 110, 1, 11000, 1111, 1001000, 11110111, 1110000, 1101101111, 101100000, 111100011111, 10010000000, 11110101111111, 1011100000000, 1111010011111111, 101110000000000, 111111011111111100, 11101010000000000, 11000111101111112000, 101111100000000000 ]
[ "nonn", "easy" ]
A251585
[ 1, 1, 7, 116, 3229, 129000, 6776875, 443200000, 34766465625, 3185000000000, 333992093359375, 39470976000000000, 5192072114658203000, 752537122540000000000, 1.1917629117965698e+23, 2.047625658368e+25, 3.7938805134981673e+27, 7.5408686240427e+29 ]
[ "nonn" ]
A033381
[ 61, 30, 20, 15, 12, 10, 8, 7, 6, 6, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 2, 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, 1, 1, 1, 1, 1, 1, 0, ...
[ "easy", "nonn" ]
A317313
[ 0, 1, 13, 3, 26, 5, 39, 7, 52, 9, 65, 11, 78, 13, 91, 15, 104, 17, 117, 19, 130, 21, 143, 23, 156, 25, 169, 27, 182, 29, 195, 31, 208, 33, 221, 35, 234, 37, 247, 39, 260, 41, 273, 43, 286, 45, 299, 47, 312, 49, 325, ...
[ "nonn", "easy", "mult" ]
A271292
[ 4, 0, 35, -31, 91, -75, 171, -167, 291, -279, 435, -423, 587, -527, 731, -727, 979, -967, 1251, -1239, 1531, -1479, 1811, -1807, 2171, -2151, 2547, -2503, 2851, -2687, 3115, -3119, 3627, -3655, 4259, -4319, 4915, -4911, 5519, -5439, 599...
[ "sign", "easy" ]
A104632
[ 1, 2, 6, 20, 73, 281, 1125, 4635, 19525, 83710, 364070, 1602327, 7123041, 31937010, 144255802, 655804649, 2998354717, 13777825186, 63596593430, 294743653360, 1371017707245, 6398580086645, 29952930770185, 140604572777250, 661708404611603, 3121439743413256, 14756658...
[ "easy", "nonn" ]
A298125
[ 1, 3, 7, 19, 37, 61, 91, 127, 169, 217, 271, 331, 397, 469, 547, 631, 721, 817, 919, 1027, 1141, 1261, 1387, 1519, 1657, 1801, 1951, 2107, 2269, 2437, 2611, 2791, 2977, 3169, 3367, 3571, 3781, 3997, 4219, 4447, 4681, 4921, 5167, 5...
[ "nonn", "easy" ]
A169395
[ 1, 46, 2070, 93150, 4191750, 188628750, 8488293750, 381973218750, 17188794843750, 773495767968750, 34807309558593750, 1566328930136718800, 70484801856152350000, 3.1718160835268554e+21, 1.4273172375870849e+23 ]
[ "nonn" ]
A189309
[ 13, 11854, 3224934, 1198076276, 415003748241, 146610388175180, 51602303242460440, 18184674267197745000, 6.407249556340878e+21, 2.2577329568029448e+24, 7.955582766945032e+26 ]
[ "nonn" ]
A104017
[ 11305, 39865, 96985, 401401, 464185, 786961, 1106785, 1296505, 1719601, 1993537, 2242513, 2615977, 2649361, 2722681, 3165961, 3181465, 3755521, 4168801, 4229601, 4483297, 4698001, 5034601, 5381265, 5910121, 5977153, 7177105 ]
[ "nonn" ]
A054959
[ 0, 0, 2, 56, 3488, 664688, 434127152, 1019647579136, 8819902136934912, 284798318582888600000, 3.4636901578294134e+25, 1.597028816599208e+31, 2.8060652850285223e+37, 1.8868082664631906e+44 ]
[ "nonn", "easy" ]
A016816
[ 1, 625, 6561, 28561, 83521, 194481, 390625, 707281, 1185921, 1874161, 2825761, 4100625, 5764801, 7890481, 10556001, 13845841, 17850625, 22667121, 28398241, 35153041, 43046721, 52200625, 62742241, 74805201, 88529281, 104060401, 121550625, 141158161, 163047361 ]
[ "nonn", "easy" ]
A254636
[ 0, 1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 16, 18, 21, 22, 25, 28, 30, 33, 36, 37, 40, 42, 45, 46, 52, 57, 58, 60, 61, 66, 70, 72, 73, 78, 81, 82, 85, 88, 93, 96, 100, 102, 105, 106, 108, 112, 117, 121, 126, 130, 133...
[ "nonn" ]
A145512
[ 1, 2, 11, 416, 106121, 184174976, 2301962201813, 215628573640652100, 1.556752274907159e+23, 8.842676925322643e+29, 4.0145668231846725e+37, 1.4749630591672953e+46 ]
[ "nonn" ]
A147262
[ 1, 1, 1, 1, 1, 1, 1, 1, 199, 377, 3217, 8011, 104473, 273171, 9678777, 30911627, 4517322323, 18623780151, 3664520343941, 18523730792349, 4450318556374425, 27331408113246916 ]
[ "nonn" ]
A316515
[ 16, 120, 174, 619, 2995, 11977, 48677, 201771, 826524, 3410229, 14060965, 57930710, 238839969, 984504319, 4058151550, 16728520173, 68956735361, 284248758531, 1171712068704, 4829948227186, 19909686588334, 82070353079883 ]
[ "nonn" ]
A093388
[ 1, 6, 42, 312, 2394, 18756, 149136, 1199232, 9729882, 79527084, 654089292, 5408896752, 44941609584, 375002110944, 3141107339328, 26402533581312, 222635989516122, 1882882811380284, 15967419789558804, 135752058036988850, 1156869080242393600 ]
[ "nonn" ]
A153700
[ 1, 8, 15, 264, 8741, 15912, 409895 ]
[ "nonn", "more" ]
A171176
[ 2, 1, 5, 3, 2, 1, 8, 5, 4, 3, 2, 1, 11, 7, 6, 5, 4, 3, 2, 1, 14, 9, 8, 7, 6, 5, 4, 3, 2, 1, 17, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 20, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 23, 15, 14, 13, 12...
[ "easy", "nonn", "tabf" ]
A334623
[ 1, 1, 2, 18, 1576, 2675100, 128235838496, 265039489112493900, 3.130619821648697e+25, 2.7898398116808244e+35, 2.351572861669184e+47, 2.307531740082215e+61 ]
[ "nonn" ]
A279119
[ 0, 0, 0, 1, 0, 2, 0, 3, 1, 4, 0, 5, 0, 6, 3, 7, 0, 8, 0, 9, 4, 10, 0, 11, 1, 12, 6, 13, 0, 14, 0, 15, 7, 16, 2, 17, 0, 18, 9, 19, 0, 20, 0, 21, 10, 22, 0, 23, 1, 24, 12, 25, 0, 26, 5, 27, 13, 28, 0, ...
[ "nonn" ]
A127636
[ 1, 6, 99, 4590, 601749, 223671780, 236051526780, 707876792166456, 6035175245831686000, 1.4633768858960602e+23, 1.0094030504239192e+28, 1.9810450790562197e+33 ]
[ "nonn" ]
A246864
[ 0, 2, 2, 5, 10, 10, 5, 12, 7, 25, 10, 17, 26, 18, 7, 29, 37, 57, 7, 38, 10, 22, 49, 74, 7, 53, 65, 49, 90, 17, 105, 53, 50, 130, 47, 44, 53, 41, 158, 120, 68, 126, 93, 37, 71, 156, 96, 125, 137, 133, 47, 129, 142...
[ "nonn" ]
A034481
[ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 3, 8, 17, 38, 72, 141, 259, 473, 832, 1466, 2507, 4285, 7199, 12054, 19952, 32957, 53990, 88340, 143861, 234222, 380675, 619906, 1011030, 1657465, 2...
[ "nonn" ]
A155829
[ 1, 4, 2, 7, 0, 2, 4, 9, 1, 5, 1, 0, 0, 1, 3, 5, 5, 5, 3, 7, 0, 1, 8, 1, 5, 8, 8, 2, 4, 7, 4, 6, 0, 3, 9, 4, 1, 3, 8, 1, 5, 9, 0, 8, 1, 8, 5, 2, 5, 2, 4, 4, 8, 8, 3, 5, 8, 6, 7, 5, 5, 8, 8, 3...
[ "nonn", "cons" ]
A354986
[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 8, 1, 1, 1, 1, 3, 2, 1, 1, 7, 1, 1, 1, 18, 1, 8, 1, 1, 20, 1, 12, 3, 1, 1, 2, 28, 1, 2, 1, 30, 32, 1, 1, 2, 1, 1, 32, 3, 1, 1, 4, 6, 2, 1, 1, 8, 1, 1, ...
[ "nonn", "frac" ]
A071868
[ 1, 2, 2, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 6, 6, 7, 7, 7, 7, 8, 8, 8, 8, 9, 9, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 11, 11, 11, 11, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 13, 13, 14, 14, ...
[ "easy", "nonn" ]
A297381
[ -1, 1, 1, 1, 2, -1, 3, 1, 1, -2, 5, -1, 6, -3, -4, 1, 8, -1, 9, -2, -6, -5, 11, -1, 2, -6, 1, -3, 14, 4, 15, 1, -10, -8, -12, -1, 18, -9, -12, -2, 20, 6, 21, -5, -4, -11, 23, -1, 3, -2, -16, -6, 26, -1, -20, ...
[ "sign", "frac" ]
A231906
[ 21, 6975, 614818, 57946241, 5429359691, 509273459716, 47773200503463, 4481443113541663, 420391740537662300, 39435796510978590000, 3.6993643711151866e+21, 3.470272820497049e+23 ]
[ "nonn" ]
A374124
[ 0, 1, 2, 2, 5, 3, 13, 3, 4, 6, 89, 4, 233, 14, 7, 4, 157, 5, 221, 7, 15, 90, 217, 5, 10, 234, 6, 15, 149, 8, 229, 5, 91, 158, 18, 6, 17, 222, 235, 8, 301, 16, 77, 91, 9, 218, 73, 6, 26, 11, 159, 235, 293, 7, ...
[ "nonn" ]
A230877
[ 0, 1, 1, 3, 1, 4, 3, 6, 1, 5, 4, 8, 3, 7, 6, 10, 1, 6, 5, 10, 4, 9, 8, 13, 3, 8, 7, 12, 6, 11, 10, 15, 1, 7, 6, 12, 5, 11, 10, 16, 4, 10, 9, 15, 8, 14, 13, 19, 3, 9, 8, 14, 7, 13, 12, 18, 6, 12, 11, ...
[ "nonn", "base" ]
A245244
[ 1, -3, 4, 25, -56, 32, -427, 1228, -1184, 384, 12465, -41840, 52416, -29184, 6144, -555731, 2079892, -3076288, 2258688, -829440, 122880, 35135945, -142843304, 237829600, -208562688, 102279168, -26787840, 2949120, -2990414715, 12987478876, -23672564832, 2...
[ "sign", "easy", "tabl" ]
A156917
[ 1, 1, 1, 1, 40, 1, 1, 1210, 1210, 1, 1, 33880, 1024870, 33880, 1, 1, 925771, 784128037, 784128037, 925771, 1, 1, 25095280, 580812061522, 16262737722616, 580812061522, 25095280, 1, 1, 678468820, 425659125229240, 325671796712891500 ]
[ "nonn", "tabl" ]
A315326
[ 1, 6, 10, 16, 22, 26, 30, 34, 40, 46, 50, 56, 62, 66, 72, 78, 82, 86, 90, 96, 102, 106, 112, 118, 122, 128, 134, 138, 142, 146, 152, 158, 162, 168, 174, 178, 184, 190, 194, 198, 202, 208, 214, 218, 224, 230, 234, 240, 24...
[ "nonn" ]
A188298
[ 1, 2, 4, 5, 7, 8, 11, 12, 14, 15, 18, 19, 21, 22, 24, 25, 28, 29, 31, 32, 35, 36, 38, 39, 41, 42, 45, 46, 48, 49, 52, 53, 55, 56, 59, 60, 62, 63, 65, 66, 69, 70, 72, 73, 76, 77, 79, 80, 82, 83, 86, 87, 89, 90, ...
[ "nonn" ]
A255952
[ 0, 3, 23, 141, 848, 5190, 32835, 216006, 1480524, 10574613, 78652940, 608539283, 4891327374, 40788987473, 352412667201, 3150522213345, 29106469066976, 277557448176080, 2728859399410797, 27631899836521084, 287875667322386270, 3082851976122478600 ]
[ "nonn" ]
A215909
[ 1, 3, 5, 9, 13, 18, 25, 34, 42, 54, 66, 78, 94, 110, 126, 147, 168, 189, 214, 239, 267, 294, 326, 357, 390, 426, 462, 503, 542, 584, 628, 671, 717, 766, 819, 869, 924, 979, 1035, 1093, 1154, 1214, 1280, 1345, 1413, 1482, 155...
[ "nonn" ]
A157215
[ 1, 0, 9, 2, 8, 9, 3, 2, 1, 8, 8, 1, 3, 4, 5, 2, 4, 7, 5, 5, 9, 9, 1, 5, 5, 6, 3, 7, 8, 9, 5, 1, 5, 0, 9, 6, 0, 7, 1, 5, 1, 6, 4, 0, 6, 2, 3, 1, 1, 5, 2, 5, 9, 6, 3, 4, 1, 1, 6, 6, 0, 1, 3, 1...
[ "cons", "nonn" ]
A049524
[ 1, 3, 48, 3424, 962020, 1037312116, 4344821892264, 71771421308713624, 4.716467927380428e+21, 1.2374651687988831e+27, 1.2979239897728091e+33, 5.444330658513426e+39, 9.134293143614742e+46 ]
[ "nonn" ]
A081880
[ 0, 2, 0, 4, 2, 0, 6, 8, 10, 16, 42, 10, 16, 42, 12, 14, 32, 170, 4816, 3865642, 2490531345360, 16, 42, 18, 20, 66, 22, 80, 1066, 189392, 5978221610, 5956522269711832000, 5.913359591595499e+36, 5.827970276585748e+72, 24, 26 ]
[ "nonn", "tabf" ]
A225181
[ 0, 1, 1, 1, 1, 0, 1, 1, 1, 1, 0, 1, 1, 0, 1, 0, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 1, 0, 1, 0, 1, 0, 0, 1, 1, 0, 1, 0, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1...
[ "nonn" ]
A384306
[ 2, 3, 5, 7, 131, 311, 887, 1013, 1949, 2399, 2621, 2957, 3251, 3323, 3701, 4289, 4919, 4973, 5099, 5101, 5477, 5927, 5981, 6359, 6599, 6779, 6863, 8069, 8447, 8573, 8627, 8669, 8951, 9677, 10141, 10181, 10211, 10589, 10631, 11399, 11597...
[ "nonn", "base" ]
A104471
[ 1, 2, 1, 3, 4, 1, 4, 5, 4, 1, 5, 8, 8, 4, 1, 6, 9, 11, 8, 4, 1, 7, 12, 12, 15, 8, 4, 1, 8, 13, 18, 16, 15, 8, 4, 1, 9, 16, 19, 22, 21, 15, 8, 4, 1, 10, 17, 22, 23, 27, 21, 15, 8, 4, 1, 11, 20, 26, 30,...
[ "nonn", "easy", "tabl" ]
A350005
[ 1, 1, 1, 71, 6392047 ]
[ "nonn", "more" ]
A367095
[ 0, 1, 1, 1, 1, 3, 1, 1, 1, 3, 1, 3, 1, 3, 3, 1, 1, 3, 1, 3, 3, 3, 1, 3, 1, 3, 1, 3, 1, 5, 1, 1, 3, 3, 3, 3, 1, 3, 3, 3, 1, 6, 1, 3, 3, 3, 1, 3, 1, 3, 3, 3, 1, 3, 3, 3, 3, 3, 1, 5, 1, 3, 3, 1...
[ "nonn" ]
A090825
[ 1, 49, 91, 119, 133, 169, 217, 221, 247, 259, 289, 301, 323, 329, 335, 343, 361, 403, 413, 427, 469, 481, 497, 511, 517, 527, 553, 559, 589, 611, 629, 637, 679, 703, 707, 721, 731, 749 ]
[ "nonn" ]
A047261
[ 2, 4, 5, 8, 10, 11, 14, 16, 17, 20, 22, 23, 26, 28, 29, 32, 34, 35, 38, 40, 41, 44, 46, 47, 50, 52, 53, 56, 58, 59, 62, 64, 65, 68, 70, 71, 74, 76, 77, 80, 82, 83, 86, 88, 89, 92, 94, 95, 98, 100, 101, 104, 106, ...
[ "nonn", "easy" ]
A016175
[ 1, 18, 252, 3240, 40176, 489888, 5925312, 71383680, 858283776, 10309483008, 123774262272, 1485653944320, 17830024114176, 213973350064128, 2567758564933632, 30813572964188160, 369765696680165400, 4437205286821429000, 53246565001813820000, 638959389381505800000, 7.6675163287365...
[ "nonn", "easy" ]
A330724
[ 10, 12, 14, 16, 18, 18, 22, 20, 24, 28, 24, 22, 15, 26, 24, 34, 36, 30, 26, 17, 42, 28, 36, 46, 30, 48, 38, 30, 52, 19, 32, 34, 44, 58, 21, 48, 34, 64, 36, 50, 66, 40, 36, 23, 54, 72, 42, 21, 76, 38, 78, 60, 42, ...
[ "nonn" ]
A203193
[ 1, 3, 5, 17, 23, 98, 122, 634, 754, 4644, 5364, 38268, 43308, 351504, 391824, 3566736, 3929616, 39659040, 43287840, 479795040, 519711840, 6276458880, 6755460480, 88299987840, 94527008640, 1329605141760, 1416783432960 ]
[ "nonn" ]
A119835
[ 2, 3, 5, 7, 113, 857 ]
[ "more", "nonn" ]
A082717
[ 3, 247, 1141, 10395, 43881 ]
[ "nonn", "base", "more" ]
A298246
[ 1, 1, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 1, 1, 0, 0, 0, 0, 1, 1, 0, 0, 0, 1, 1, 0, 0...
[ "nonn" ]
A250470
[ 1, 1, 2, 1, 3, 2, 5, 1, 4, 3, 7, 2, 11, 5, 6, 1, 13, 4, 17, 3, 8, 7, 19, 2, 9, 11, 10, 5, 23, 6, 29, 1, 12, 13, 15, 4, 31, 17, 14, 3, 37, 10, 41, 7, 16, 19, 43, 2, 25, 9, 18, 11, 47, 8, 21, 5, 20, 23, ...
[ "nonn" ]
A291268
[ 1, 0, 2, 2, 3, 3, 4, 3, 5, 5, 6, 6, 7, 6, 8, 8, 9, 9, 10, 9, 11, 11, 12, 12, 13, 12, 14, 14, 15, 15, 16, 15, 17, 17, 18, 18, 19, 18, 20, 20, 21, 21, 22, 21, 23, 23, 24, 24, 25, 24, 26, 26, 27, 27, 28, 27, ...
[ "nonn" ]
A180868
[ 9, 14, 15, 21, 25, 33, 34, 35, 38, 57, 64, 81, 85, 86, 93, 94, 118, 121, 122, 133, 141, 142, 145, 158, 177, 201, 202, 205, 213, 214, 215, 216, 217, 218, 225, 253, 298, 301, 302, 326, 334, 361, 381, 393, 394, 445, 446, 453,...
[ "nonn", "easy" ]
A045115
[ 7, 13, 19, 27, 28, 30, 39, 45, 49, 52, 54, 57, 67, 75, 76, 78, 99, 107, 108, 110, 112, 114, 120, 122, 135, 141, 147, 155, 156, 158, 167, 173, 177, 180, 182, 185, 193, 196, 198, 201, 208, 210, 216, 218, 225, 228, 230, 233, ...
[ "nonn", "base" ]
A188799
[ -1, -18, 4968, 502200, 796330440, -1289959784640, -1343956990999680, -721722455986066600, -3.2804319701091727e+22, 1.3344669876062223e+26, 9.556986613286657e+29, 6.838527510454538e+33, -3.7058969931138827e+37 ]
[ "sign", "easy" ]
A010748
[ 1, 1, 1, 1, 2, 7, 23, 65, 165, 398, 976, 2618, 7997, 27205, 97705, 355631, 1289746, 4662069, 16971775, 63150385, 243513801, 980670052, 4121324752, 17941655332, 80143362633, 364476958473, 1680382664145, 7847729640629, 37192941056498, 179431901258459 ]
[ "nonn", "eigen" ]
A373417
[ 1, 1, 0, 1, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 3, 1, 0, 0, 0, 15, 20, 1, 0, 0, 0, 45, 120, 130, 1, 0, 0, 0, 105, 420, 910, 924, 1, 0, 0, 0, 210, 1120, 3640, 7392, 7413, 1, 0, 0, 0, 378, 2520, 10920, 33264, 66717, ...
[ "nonn", "tabl" ]
A219331
[ 1, 1, 1, 5, 6, 7, 8, 13, 28, 36, 45, 59, 92, 134, 186, 269, 375, 538, 761, 1080, 1520, 2157, 3060, 4339, 6181, 8750, 12394, 17554, 24912, 35322, 50066, 70957, 100596, 142665, 202278, 286790, 406520, 576347, 817142, 1158528, 1642461, 2...
[ "nonn" ]
A110419
[ 0, 1, 0, 3, 12, 22, 15, 24, 31, 13, 38, 26, 18, 14, 53, 47, 41, 39, 33, 29, 27, 21, 17, 11, 127, 192, 176, 144, 128, 209, 111, 214, 178, 166, 106, 245, 215, 185, 165, 135, 105, 276, 236, 228, 212, 204, 156, 108, 319, 3...
[ "base", "easy", "nonn", "look" ]
A135850
[ 42, 78, 110, 114, 147, 186, 222, 225, 258, 310, 366, 402, 406, 410, 438, 474, 506, 507, 525, 582, 602, 610, 618, 654, 710, 735, 762, 834, 906, 942, 975, 978, 994, 1010, 1083, 1086, 1089, 1158, 1194, 1266, 1310, 1338, 1374, 1378, ...
[ "nonn" ]
A045199
[ 125, 250, 500, 626, 627, 629, 630, 635, 645, 650, 675, 725, 750, 875, 1125, 1251, 1252, 1254, 1255, 1260, 1270, 1275, 1300, 1350, 1375, 1500, 1750, 2501, 2502, 2504, 2505, 2510, 2520, 2525, 2550, 2600, 2625, 2750, 3000 ]
[ "nonn", "base" ]
A131915
[ 1, 1, 2, 1, 5, 0, 9, 3, 4, 0, 7, 3, 1, 7, 6, 0, 5, 2, 2, 7, 6, 8, 6, 1, 5, 4, 3, 5, 2, 9, 4, 4, 4, 7, 1, 0, 2, 4, 5, 6, 5, 0, 2, 7, 8, 6, 3, 1, 6, 2, 6, 6, 7, 0, 5, 2, 8, 1, 6, 0, 6, 7, 2, 1...
[ "cons", "easy", "nonn" ]
A306943
[ 5, 8, 13, 22, 38, 65, 112, 193, 334, 578, 1001, 1733, 3001, 5197, 9001, 15590, 27002, 46768, 81004, 140303, 243011, 420907, 729032, 1262720, 2187095, 3788159, 6561283, 11364475, 19683848, 34093424, 59051542, 102280271, 177154625, 306840811, 5314638...
[ "nonn" ]
A107014
[ 6, 10, 11, 12, 20, 21, 22, 23, 24, 28, 30, 33, 34, 36, 41, 42, 46, 49, 58, 60, 61, 62, 66, 68, 73, 83, 92, 96, 100, 101, 102, 103, 110, 111, 112, 113, 114, 118, 120, 121, 122, 123, 126, 127, 128, 129, 130, 131, 132, 13...
[ "base", "easy", "nonn" ]
A118815
[ -4656, 1440, 2912, 2832, -10464, -768, -17376, 20384, -72976, -18944, 12672, 41184, -199776, 28944, -21104, 3552, 25488, 338448, -60192, 39952, -21792, -161904, 499488, -83424, -7440, 7440, -54288, -75456, 1641792, 42288 ]
[ "easy", "sign" ]
A180686
[ 5, 6, 14, 24, 44, 58, 72, 76, 80, 84, 86, 104, 128, 134, 138, 180, 186, 188, 218, 228, 246, 256, 266, 280, 300, 320, 352, 360, 380, 390, 408, 450, 480, 508, 518, 524, 526, 532, 546, 548, 552, 576, 584, 590, 604, 616, 630, ...
[ "nonn" ]
A238882
[ 1, 1, 1, 1, 1, -1, 1, 1, -1, 1, -1, -1, 1, -1, 1, -2, 2, -1, 3, 1, 2, 1, -1, -4, 1, -4, -4, -10, -2, -8, -4, -5, -4, -1, 1, 2, 5, 6, 13, 12, 16, 18, 21, 25, 23, 30, 22, 23, 21, 21, 18, 14, 8, -1, -9, -20, ...
[ "sign" ]
A199886
[ 1, 2, 2, 7, 7, 18, 40, 85, 148, 285, 584, 1231, 2516, 5069, 10175, 20306, 40000, 78328, 154233, 307586, 620903, 1262129, 2566697, 5193429, 10424746, 20761986, 41131719, 81358316, 161239595, 320900400, 641688619, 1287937462, 2589941043, 5208522925, ...
[ "nonn" ]
A326726
[ -1, -1, -5, -61, -5, 277, -19, 2659, -5, 13, 43, 967, -47, 4241723, -5, 17, 228135437, -79, 349, 87224971, -5, 5, 41737, 354957173, -31, 1567103, 1427513357, -5, 13, 2137, 111691689741601, -67, 61001082228255580000, -5, 19, 29, 71, 30211, 2...
[ "sign", "tabf", "hard" ]
A156000
[ 1, 0, 7, 9, 3, 4, 1, 0, 4, 0, 1, 2, 1, 5, 5, 1, 6, 5, 8, 2, 1, 9, 1, 2, 8, 7, 4, 8, 2, 1, 5, 7, 1, 8, 5, 9, 7, 7, 3, 1, 8, 3, 7, 0, 7, 8, 1, 3, 5, 5, 8, 4, 4, 9, 9, 8, 5, 3, 2, 6, 3, 3, 4, 7...
[ "nonn", "cons" ]
A116697
[ 1, 1, -2, 2, -2, 5, -9, 13, -20, 34, -56, 89, -143, 233, -378, 610, -986, 1597, -2585, 4181, -6764, 10946, -17712, 28657, -46367, 75025, -121394, 196418, -317810, 514229, -832041, 1346269, -2178308, 3524578, -5702888 ]
[ "easy", "nice", "sign" ]
A367278
[ 1, 8, 88, 444, 1544, 3584, 8356, 14996, 26572, 42144, 69988, 93264, 148364, 196120, 261536, 347544, 483056, 572832, 783252, 907472, 1141668, 1413512, 1775972, 1958684, 2466452, 2897004, 3384128, 3852068, 4733632, 5042324, 6263264, 6869784, 7878988, 9...
[ "nonn" ]
A019354
[ 5, 11, 13, 17, 23, 41, 43, 67, 71, 73, 79, 89, 101, 107, 173, 179, 181, 191, 229, 257, 263, 269, 293, 313, 331, 347, 353, 359, 379, 397, 409, 431, 433, 443, 461, 463, 487, 491, 499, 509, 521, 571, 577, 593, 599, 659, 661, ...
[ "nonn" ]
A305994
[ 1, 1, 0, 1, 1, 1, 0, 0, 1, 0, 0, 1, 1, 1, 0, 0, 1, 1, 0, 1, 1, 1, 0, 0, 1, 0, 0, 1, 1, 0, 0, 0, 1, 1, 0, 1, 1, 0, 0, 0, 1, 0, 0, 1, 1, 1, 0, 0, 1, 1, 0, 1, 1, 1, 0, 0, 1, 0, 0, 1, 1, 0, 0, 0...
[ "nonn", "easy" ]
A334691
[ 1, 20, 8, 1, 204, 32, 8, 0, 1, 616, 152, 20, 8, 4, 0, 1, 2428, 252, 36, 16, 4, 0, 0, 0, 1, 3968, 572, 156, 72, 16, 8, 4, 0, 4, 0, 1, 11164, 900, 120, 52, 16, 8, 4, 0, 0, 0, 0, 0, 1, 16884, 1712, 396, 132, 40, ...
[ "nonn", "tabf" ]
A376226
[ 1, 2, 10, 66, 518, 4484, 41424, 399900, 3983698, 40622502, 421780380, 4442833776, 47353725678, 509717438804, 5532808254500, 60492412303032, 665570138005230, 7363717939202660, 81872879608989980, 914314572022052500, 10251126194392777000, 115346231108018650000, 1.30211483269...
[ "nonn" ]
A054961
[ 1, 2, 3, 4, 5, 6, 8, 10, 13, 17 ]
[ "nonn", "hard", "more", "nice" ]
A244537
[ 1, 0, 0, 0, 0, 0, 0, 0, 8, 17, 18, 19, 20, 21, 22, 23, 116, 325, 676, 1080, 1540, 2059, 2640, 3286, 5240, 10241, 20604, 39305, 68286, 109705, 165946, 239629, 351898, 552311, 931070, 1633871, 2879668, 4951860, 8208631, 13094200, 20436400...
[ "nonn" ]
A380692
[ 1, 2, 3, 5, 6, 7, 9, 10, 11, 13, 14, 15, 17, 19, 21, 22, 23, 25, 26, 29, 30, 31, 33, 34, 35, 37, 38, 39, 41, 42, 43, 45, 46, 47, 49, 51, 53, 55, 57, 58, 59, 61, 62, 63, 65, 66, 67, 69, 70, 71, 73, 74, 75, 77, ...
[ "nonn", "easy" ]
A121244
[ 0, 0, 0, 0, 2, 11, 41, 136, 437, 1397, 4490, 14554, 47683, 158093, 530265, 1797631, 6153650, 21252343, 73986392, 259434758, 915667537, 3251026851, 11605063370, 41631062856, 150021553132, 542875085143, 1972049524959 ]
[ "nonn" ]
A342587
[ 1, 1, 2, 1, 12, 6, 1, 86, 108, 24, 1, 840, 2310, 960, 120, 1, 11642, 65700, 42960, 9000, 720, 1, 227892, 2583126, 2510760, 712320, 90720, 5040, 1, 6285806, 142259628, 199357704, 71310960, 11481120, 987840, 40320, 1, 243593040, 11012710470, ...
[ "nonn", "tabl", "nice" ]
A120245
[ 1, 2, 3, 3, 4, 5, 4, 5, 6, 6, 4, 5, 6, 6, 7, 5, 6, 7, 7, 8, 9, 6, 7, 8, 8, 9, 10, 9, 5, 6, 7, 7, 8, 9, 8, 9, 6, 7, 8, 8, 9, 10, 9, 10, 11, 7, 8, 9, 9, 10, 11, 10, 11, 12, 12, 7, 8, 9, 9, 10, 11, ...
[ "easy", "nonn" ]
A289723
[ 7, 61, 223, 709, 59029, 177127, 1162261447, 3486784381, 94143178807, 847288609423, 2541865828309, 7.509466514979725e+33, 1.4780882941434593e+38, 2.6183890704263137e+43 ]
[ "nonn" ]
A134116
[ 1327, 8467, 9973, 11743, 12163, 17257, 19087, 20443, 21433, 29683, 32653, 34549, 37747, 41299, 47743, 49957, 54217, 59887, 61057, 61297, 64237, 73483, 74653, 77383, 78367, 80863, 85159, 88177, 88609, 89329, 91639, 93337, 97039, 100069 ]
[ "nonn" ]
A052785
[ 0, 0, 0, 0, 0, 0, 720, 12600, 134400, 1134000, 8341200, 56133000, 355291200, 2151864000, 12614281680, 72135063000, 404672486400, 2236228722000, 12209943566160, 66024457842600, 354214283304000, 1887999348060000, 10008933180578640, 52820388477271800, 277680637970208000 ...
[ "easy", "nonn" ]
A168428
[ 1, 4, 6, 4, 6, 4, 6, 4, 6, 4, 6, 4, 6, 4, 6, 4, 6, 4, 6, 4, 6, 4, 6, 4, 6, 4, 6, 4, 6, 4, 6, 4, 6, 4, 6, 4, 6, 4, 6, 4, 6, 4, 6, 4, 6, 4, 6, 4, 6, 4, 6, 4, 6, 4, 6, 4, 6, 4, 6, 4, 6, 4, 6, 4...
[ "nonn", "easy" ]
A156964
[ 1, -23, -24, 15479, 15576, -9687623, -29218824, 102940546183, 103486546776, -117323007156473, -589722909687624, 1634481375256483800, 4929419295450078000, -8.073357213342645e+21, -5.681286723836427e+22, 8.58902064560833e+26, 8.634518859704738e+26 ]
[ "sign", "frac" ]
A388218
[ 4, 5, 6, 4, 8, 8, 1, 0, 3, 6, 2, 7, 2, 2, 3, 2, 4, 1, 9, 8, 1, 5, 0, 6, 3, 5, 1, 7, 0, 7, 6, 7, 7, 9, 7, 4, 9, 2, 5, 2, 7, 1, 5, 8, 0, 1, 4, 8, 2, 0, 2, 3, 2, 6, 0, 9, 8, 3, 5, 1, 6, 0, 4, 6...
[ "nonn", "cons" ]
A015498
[ 1, 10, 101, 10201, 10211201, 102122221201, 10212324242321200, 1.0212334454645444e+22, 1.0212335475878888e+29, 1.0212335578002243e+37 ]
[ "nonn", "easy" ]