id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A150308
[ 1, 2, 7, 21, 84, 293, 1240, 4656, 20363, 80023, 357202, 1447365, 6552397, 27145352, 124153417, 523071534, 2410975045, 10293066163, 47732356116, 205975042397, 959841636269, 4178736283241, 19550805153692, 85752038453092, 402540692582469, 1776854677123549, 8364483169632075, 37125294976403030 ]
[ "nonn", "walk" ]
A344858
[ 2, 1, 0, 0, 0, 1, 2, 2, 0, 0, 0, 1, 2, 2, 1, 0, 0, 0, 1, 2, 1, 0, 0, 0, 1, 2, 1, 0, 0, 0, 1, 2, 2, 0, 0, 0, 0, 2, 2, 1, 0, 0, 0, 1, 2, 1, 0, 0, 0, 1, 2, 2, 0, 0, 0, 1, 2, 2, 1, 0, 0, 0, 1, 2, 1, 0, 0, 0, 1, 2, 1, 0, 0, 0, 1, 2, 2, 0, 0, 0, 0, 2, 2, 1, 0, 0, 0, 1, 2, 1, 0, 0, 0, 1, 2, 2, 0, 0, 0, 1 ]
[ "nonn" ]
A106533
[ 2, 0, 3, 1, 8, 7, 8, 6, 9, 9, 7, 9, 9, 7, 9, 9, 5, 3, 8, 3, 8, 4, 7, 9, 0, 6, 2, 0, 6, 2, 4, 1, 9, 8, 7, 9, 1, 0, 5, 4, 9, 8, 7, 8, 7, 5, 9, 0, 5, 7, 0, 3, 1, 7, 5, 0, 0, 2, 4, 7, 7, 4, 4, 1, 5, 1, 9, 5, 7, 5, 0, 7, 5, 9, 1, 9, 0, 6, 0, 2, 4, 8, 8, 3, 6, 2, 5, 0, 3, 6, 1, 6, 9, 0, 7, 7, 9, 6, 4, 2, 9, 1, 4, 6, 9 ]
[ "cons", "nonn" ]
A137751
[ 0, 0, 0, 0, 4, 4, 4, 7, 4, 19, 12, 8, 22, 10, 32, 16, 22, 36, 16, 27, 16, 30, 20, 72, 28, 66, 24, 74, 60, 80, 30, 49, 28, 106, 88, 114, 44, 40, 40, 36, 67, 119, 72, 44, 48, 183, 181, 54, 56, 149, 212, 90, 138, 94, 64, 178, 156, 102 ]
[ "nonn" ]
A051724
[ 0, 1, 1, 1, 1, 5, 1, 7, 2, 3, 5, 11, 1, 13, 7, 5, 4, 17, 3, 19, 5, 7, 11, 23, 2, 25, 13, 9, 7, 29, 5, 31, 8, 11, 17, 35, 3, 37, 19, 13, 10, 41, 7, 43, 11, 15, 23, 47, 4, 49, 25, 17, 13, 53, 9, 55, 14, 19, 29, 59, 5, 61, 31, 21, 16, 65, 11, 67, 17, 23, 35, 71 ]
[ "nonn", "easy", "frac", "mult" ]
A339938
[ 15015, 19635, 21945, 23205, 25935, 26565, 31395, 33495, 33915, 35805, 39585, 41055, 42315, 42735, 45885, 47355, 49665, 50505, 51765, 54285, 55965, 58695, 61215, 64155, 68145, 70455, 72345, 75075, 77385, 80535, 82005, 83265, 84315, 91245, 95865, 102795, 105105 ]
[ "nonn" ]
A249767
[ 1, 0, 0, 1, 0, 3, 0, 1, 1, 3, 0, 2, 0, 3, 3, 1, 0, 2, 0, 2, 3, 3, 0, 2, 1, 3, 1, 2, 0, 2, 0, 1, 3, 3, 3, 2, 0, 3, 3, 2, 0, 2, 0, 2, 2, 3, 0, 2, 1, 2, 3, 2, 0, 2, 3, 2, 3, 3, 0, 3, 0, 3, 2, 1, 3, 2, 0, 2, 3, 2, 0, 2, 0, 3, 2, 2, 3, 2, 0, 2, 1, 3, 0, 3, 3, 3, 3 ]
[ "nonn" ]
A017669
[ 1, 9, 28, 73, 126, 7, 344, 585, 757, 567, 1332, 511, 2198, 387, 392, 4681, 4914, 757, 6860, 4599, 1376, 2997, 12168, 455, 15751, 9891, 20440, 3139, 24390, 147, 29792, 37449, 4144, 22113, 6192, 55261, 50654, 15435, 61544, 7371, 68922, 172, 79508, 24309, 10598 ]
[ "nonn", "frac" ]
A299972
[ 1, 11, 9, 3, 17, 4, 8, 12, 10, 2, 18, 5, 7, 13, 14, 6, 15, 27, 25, 37, 35, 47, 45, 57, 55, 65, 56, 16, 26, 36, 46, 66, 54, 28, 24, 38, 34, 48, 44, 58, 62, 20, 22, 30, 32, 40, 42, 50, 52, 60, 61, 21, 31, 41, 51, 69, 23, 19, 33, 29, 43, 39, 53, 49, 63, 59, 64, 68 ]
[ "nonn", "base" ]
A204141
[ 864197523, 865749213, 867129543, 871946523, 873526941, 893154276, 893472615, 893542671, 927413865, 928175346, 941687523, 946728153, 951487236, 951634782, 953721846, 956182374, 957312468, 958126743, 963521874, 963824715, 964785213, 971268543, 971568234, 972835164 ]
[ "nonn", "base", "fini", "full" ]
A038193
[ 1, 1, 2, 4, 11, 14, 43, 34, 102, 111, 296, 262 ]
[ "nonn", "nice", "more" ]
A080135
[ 1, 1, 2, 4, 9, 20, 45, 101, 228, 515, 1164, 2631, 5947, 13443, 30388, 68694, 155287, 351036, 793541, 1793853, 4055128, 9166895, 20722396, 46844400, 105894986, 239382894, 541141486, 1223287525, 2765325535, 6251208451, 14131286391 ]
[ "nonn" ]
A180640
[ 2, 3, 5, 11, 13, 23, 29, 37, 43, 47, 59, 61, 67, 73, 83, 103, 107, 113, 131, 137, 139, 149, 157, 167, 173, 179, 193, 211, 223, 227, 229, 233, 263, 269, 277, 281, 283, 293, 311, 313, 317, 331, 347, 353, 359, 367, 373, 383, 389, 397, 409, 421, 439, 443, 457, 467 ]
[ "nonn" ]
A286253
[ 0, 1, 8, 1, 9, 1, 25, 1, 5, 1, 26, 1, 27, 1, 17, 1, 35, 1, 53, 1, 5, 1, 75, 1, 9, 1, 8, 1, 65, 1, 131, 1, 5, 1, 13, 1, 90, 1, 12, 1, 104, 1, 134, 1, 5, 1, 186, 1, 14, 1, 8, 1, 152, 1, 18, 1, 5, 1, 188, 1, 189, 1, 30, 1, 9, 1, 229, 1, 5, 1, 273, 1, 252, 1, 8, 1, 14, 1, 347, 1, 5, 1, 323, 1, 9, 1, 12, 1, 324, 1, 19, 1, 5, 1, 31, 1, 350, 1, 8, 1, 377, 1, 462, 1, 5 ]
[ "nonn" ]
A001556
[ 9, 45, 285, 2025, 15333, 120825, 978405, 8080425, 67731333, 574304985, 4914341925, 42364319625, 367428536133, 3202860761145, 28037802953445, 246324856379625, 2170706132009733, 19179318935377304, 169842891165484960, 1506994510201252400 ]
[ "nonn" ]
A254695
[ 2606, 8142, 25962, 81390, 242076, 665256, 1954106, 5903724, 17914000, 54038937, 160308249, 478607126, 1443443997, 4369141817, 13219429435, 39902004658, 120477837636, 364791774779, 1106851765150, 3359640314837, 10196138352130 ]
[ "nonn" ]
A249641
[ 0, 0, 8, 120, 1016, 8520, 68552, 551496, 4415048, 35344632, 282781304, 2262444024, 18099745784, 144799511928, 1158397641080, 9267193490808, 74137560288632, 593100581182152, 4744804748330312, 37958438777603016, 303667511011784640, 2429340094421767700 ]
[ "easy", "nonn", "walk" ]
A185772
[ 558, 7074, 89118, 1151346, 14837270, 190416934, 2442333998, 31384892214, 403218559222, 5178525140438, 66503687019294, 854217043141534, 10971879636716262, 140921116729079310, 1809957986000195800 ]
[ "nonn" ]
A000069
[ 1, 2, 4, 7, 8, 11, 13, 14, 16, 19, 21, 22, 25, 26, 28, 31, 32, 35, 37, 38, 41, 42, 44, 47, 49, 50, 52, 55, 56, 59, 61, 62, 64, 67, 69, 70, 73, 74, 76, 79, 81, 82, 84, 87, 88, 91, 93, 94, 97, 98, 100, 103, 104, 107, 109, 110, 112, 115, 117, 118, 121, 122, 124, 127, 128 ]
[ "easy", "core", "nonn", "nice", "base" ]
A205773
[ 1, 3, 21, 156, 1335, 12153, 116778, 1160715, 11848530, 123420648, 1306709841, 14019657771, 152092615971, 1665531792021, 18386262679557, 204393214435791, 2286101345820933, 25708109998131380, 290490321604346560, 3296566844230833700, 37555644504960140000 ]
[ "nonn" ]
A351645
[ 1, 0, 1, 0, 1, 0, 1, 1, 0, 1, 1, 0, 1, 2, 0, 1, 5, 1, 0, 1, 6, 1, 0, 1, 9, 2, 0, 1, 13, 3, 0, 1, 28, 16, 1, 0, 1, 32, 17, 1, 0, 1, 50, 31, 2, 0, 1, 66, 44, 3, 0, 1, 96, 70, 5, 0, 1, 175, 224, 36, 1, 0, 1, 217, 262, 39, 1, 0, 1, 308, 428, 71, 2, 0, 1, 425, 619, 105, 3 ]
[ "nonn", "tabf" ]
A338151
[ 9, 4, 9, 16, 25, 169, 25, 64, 81, 100, 25, 27, 729, 121, 49, 256, 289, 324, 81, 64, 243, 484, 49, 576, 5929, 676, 169, 784, 121, 125, 225, 100, 1089, 841, 7921, 1000, 343, 196, 81, 1600, 169, 216, 441, 361, 2025, 2116, 289, 2304, 2401, 256, 625, 2704, 2809, 441 ]
[ "nonn" ]
A289028
[ 2, 4, 7, 12, 20, 34, 58, 99, 169, 288, 491, 837, 1428, 2437, 4159, 7099, 12118, 20686, 35313, 60283, 102909, 175676, 299897, 511955, 873961, 1491944, 2546908, 4347844, 7422234, 12670546, 21629975, 36924676, 63034365, 107606391, 183695599 ]
[ "nonn", "easy" ]
A269625
[ 1, 0, 0, 1, 0, 0, 0, 1, 1, 0, 0, 1, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 1, 1, 1, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0 ]
[ "nonn", "base" ]
A306010
[ 1, 2, 3, 4, 5, 7, 8, 6, 9, 11, 10, 13, 12, 16, 17, 15, 14, 19, 20, 18, 23, 21, 25, 27, 24, 22, 29, 28, 31, 32, 26, 33, 37, 35, 36, 41, 40, 34, 43, 30, 39, 47, 44, 45, 38, 49, 53, 48, 52, 51, 46, 55, 56, 59, 42, 61, 50, 57, 64, 63, 67, 54, 65, 71, 68, 58, 73 ]
[ "nonn" ]
A079812
[ 5, 5477, 20897, 27689, 36341, 39239, 43649, 51971, 77549, 109661, 121631, 122399, 152027, 153509, 159977, 163481, 189947, 211061, 245981, 285977, 308489, 470087, 497279, 512591, 520631, 522281, 560639, 570461, 573899, 580031, 581729, 591089, 616139, 622187, 659171 ]
[ "easy", "nonn" ]
A016085
[ 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 3, 3, 4, 5, 6, 7, 9, 11, 14, 17, 21, 27, 34, 42, 53, 67, 84, 106, 133, 167, 211, 265, 334, 421, 530, 668, 841, 1060, 1335, 1682, 2119, 2670, 3364, 4238, 5339, 6727, 8475, 10678, 13453, 16950, 21355, 26906, 33899, 42710, 53811 ]
[ "easy", "nonn" ]
A059363
[ 1, 2, 25, 745, 2306, 7081, 31945, 435866, 716881, 733442, 4106917, 21714577, 203637493, 263669781, 689256613, 1513925617 ]
[ "nonn", "more" ]
A016200
[ 1, 9, 61, 381, 2317, 13965, 83917, 503757, 3023053, 18139341, 108838093, 653032653, 3918204109, 23509241037, 141055478989, 846332939469, 5077997767885, 30467986869453, 182807921741005, 1096847531494605, 6581085191064781, 39486511150582990, 236919066911886530, 1421514401488096500 ]
[ "nonn", "easy" ]
A222985
[ 17, 1172, 36987, 4405097, 183010307, 26345532486, 1202086792105, 180821359299832, 8463651301168857, 1290846776123480300, 61103325028133090000, 9.391211217321901e+21, 4.4772342260640536e+23 ]
[ "nonn" ]
A296733
[ 2, 11, 31, 88, 287, 881, 2686, 8347, 25763, 79376, 245227, 757045, 2336222, 7212287, 22263871, 68722504, 212138639, 654844841, 2021399374, 6239772643, 19261292171, 59456768000, 183534426499, 566544237805, 1748839677662, 5398414303799 ]
[ "nonn" ]
A316086
[ 1, 3, 5, -2, -6, -35, -4, 8, 16, -62, -158, -1149, 56, 556, 680, -1566, -4966, 3544, 6132, 20268, 15792, -75194, -162814, -1246153, 333904, 805112, 235968, -2775034, -5259270, 7160120, 15199212, 25457976, -4403208, -119142438, -161039518, 211525304, 635914664 ]
[ "sign" ]
A234872
[ 1, 6, 81, 1406, 27636, 585162, 13019909, 300138696, 7105216833, 171717015470, 4219267597578, 105085831400550, 2647012241261856, 67316157557021440, 1726006087183713500, 44570883175043930000, 1.1581399432223898e+21 ]
[ "nonn" ]
A138054
[ 2, 6, 3, 2, 6, 12, 1, 4, 9, 8, 15, 6, 14, 24, 2, 6, 6, 12, 5, 12, 21, 24, 9, 20, 33, 24, 39, 14, 30, 48, 3, 2, 6, 12, 15, 6, 14, 24, 18, 30, 11, 24, 39, 14, 30, 48, 34, 54, 19, 40, 63, 66, 23, 48, 75, 52, 81, 28, 58, 90, 1, 4, 9, 8, 15, 6, 14, 24, 9, 20, 33, 24, 39, 14, 30, 48, 51, 18 ]
[ "nonn", "uned", "tabf" ]
A106355
[ 2, 10, 30, 76, 168, 320, 580, 968, 1558, 2380, 3540, 5078, 7160, 9804, 13238, 17510, 22884, 29418, 37462, 47054, 58638, 72272, 88454, 107262, 129312, 154644, 183994, 217442, 255782, 299114, 348386, 403652, 466012, 535550, 613442, 699812, 796012 ]
[ "nonn", "easy" ]
A094726
[ 1, 5, 19, 83, 337, 1421, 5875, 24539, 101953, 424757, 1767091, 7356995, 30617809, 127448573, 530457427, 2207952011, 9190020865, 38251609829, 159213407443, 662691303347, 2758303273681, 11480828277485, 47786386018099 ]
[ "nonn", "easy" ]
A160526
[ 1, 3, 9, 22, 51, 108, 221, 427, 804, 1461, 2596, 4497, 7652, 12767, 20984, 33958, 54255, 85580, 133520, 206066, 315010, 477083, 716494, 1067316, 1578102, 2316569, 3377965, 4894045, 7047970, 10091120, 14369439, 20354090, 28687663, 40239129, 56183879 ]
[ "nonn" ]
A145430
[ 2, 0, 0, 5, 1, 1, 0, 8, 7, 5, 6, 4, 2, 3, 0, 2, 9, 0, 7, 6, 2, 7, 4, 3, 6, 3, 9, 1, 7, 1, 9, 3, 1, 6, 9, 3, 7, 8, 8, 2, 9, 8, 7, 4, 9, 9, 2, 9, 3, 6, 0, 7, 6, 2, 0, 5, 8, 1, 4, 3, 8, 8, 6, 4, 9, 5, 8, 5, 6, 4, 1, 4, 1, 1, 5, 7, 9, 0, 8, 8, 4, 5, 8, 0, 8, 9, 3, 5, 1, 8, 0, 8, 1 ]
[ "cons", "easy", "nonn" ]
A030344
[ 2, 7, 10, 12, 13, 14, 21, 30, 34, 37, 39, 40, 44, 47, 48, 50, 53, 56, 57, 59, 61, 62, 64, 65, 66, 67, 68, 77, 89, 94, 98, 101, 102, 113, 125, 130, 134, 137, 138, 143, 147, 149, 151, 155, 159, 161, 163, 166, 167, 170, 171, 173, 174, 175 ]
[ "nonn" ]
A017645
[ 100000, 5153632, 45435424, 205962976, 656356768, 1680700000, 3707398432, 7339040224, 13382255776, 22877577568, 37129300000, 57735339232, 86617093024, 126049300576, 178689902368, 247609900000 ]
[ "nonn", "easy" ]
A161240
[ 1, 2, 3, 4, 5, 8, 9, 12, 15, 19, 22, 29, 33, 40, 47, 56, 63, 76, 85, 100, 113, 131, 146, 169, 187, 214, 237, 268, 295, 334, 365, 410, 449, 499, 545, 606, 657, 727, 789, 868, 940, 1033, 1114, 1219, 1315, 1433, 1542, 1678, 1800, 1954, 2095, 2266, 2426, 2619, 2798 ]
[ "nonn" ]
A148136
[ 1, 1, 2, 4, 11, 28, 89, 258, 875, 2736, 9651, 31721, 114934, 391219, 1444642, 5045155, 18889869, 67267567, 254499953, 920173993, 3509555190, 12844126821, 49300579903, 182216041272, 703004670539, 2619545716418, 10148775007137, 38074615959324, 148021689616412, 558529113424010, 2177671784821983 ]
[ "nonn", "walk" ]
A030942
[ 1, 3, 10, 41, 207, 1242, 8695, 69567, 626110, 6261104, 68872146, 826465755, 10744054820, 150416767486, 2256251512292, 36100024196676, 613700411343508, 11046607404183144, 209885540679479780, 4197710813589595000 ]
[ "nonn" ]
A333682
[ 1, 3, 16, 119, 1070, 10751, 116287, 1326581, 15756587, 193181910, 2429921124, 31216684816, 408198225495, 5418728779290, 72871393962150, 991102308239835, 13613940451015378, 188650695857473570, 2634681336798911000, 37054660535787380000, 524449965598846600000 ]
[ "nonn" ]
A185540
[ 0, 1, 1, 1, 11, 1, 6, 110, 110, 6, 11, 1155, 2990, 1155, 11, 41, 12105, 127570, 127570, 12105, 41, 96, 127190, 4403225, 17526450, 4403225, 127190, 96, 301, 1336205, 167398110, 2241330570, 2241330570, 167398110, 1336205, 301, 781, 14039455 ]
[ "nonn", "tabl" ]
A333807
[ 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 4, 1, 1, 4, 1, 1, 4, 1, 1, 4, 1, 1, 4, 1, 1, 4, 1, 1, 9, 1, 1, 4, 1, 6, 4, 1, 1, 4, 6, 1, 4, 1, 1, 9, 1, 1, 4, 1, 6, 4, 1, 1, 4, 6, 8, 4, 1, 1, 9, 1, 1, 11, 1, 6, 4, 1, 1, 4, 13, 1, 4, 1, 1, 9, 1, 8, 4, 1, 6, 4, 1, 1, 11, 6, 1, 4, 1, 1, 18 ]
[ "nonn" ]
A219376
[ 6, 14, 84, 344, 1271, 4116, 12452, 35741, 97942, 256627, 644220, 1553493, 3608625, 8096762, 17592376, 37102211, 76113986, 152179500, 297049058, 566965708, 1059617705, 1941564060, 3491864902, 6170398463, 10723237448, 18342891239 ]
[ "nonn" ]
A082196
[ 1, 2, 3, 5, 7, 4, 6, 11, 9, 13, 17, 19, 8, 23, 10, 12, 25, 21, 29, 27, 31, 37, 41, 16, 43, 14, 47, 15, 18, 35, 33, 53, 39, 59, 22, 49, 61, 67, 26, 71, 20, 73, 45, 79, 24, 28, 51, 55, 57, 77, 83, 32, 89, 65, 97, 95, 101, 46, 103, 34, 69, 85, 63, 38, 81, 40, 36, 91, 75, 107, 109, 113, 44, 127, 115, 119, 121, 87 ]
[ "nonn", "tabl" ]
A002067
[ 1, 1, 7, 127, 4369, 243649, 20036983, 2280356863, 343141433761, 65967241200001, 15773461423793768, 4591227123230945300, 1.59835173324761e+21, 6.557822497995317e+23, 3.131604048649739e+26, 1.7220166851265734e+29, 1.0802634947676203e+32 ]
[ "nonn", "eigen", "easy", "nice" ]
A121539
[ 0, 2, 3, 4, 6, 8, 10, 11, 12, 14, 15, 16, 18, 19, 20, 22, 24, 26, 27, 28, 30, 32, 34, 35, 36, 38, 40, 42, 43, 44, 46, 47, 48, 50, 51, 52, 54, 56, 58, 59, 60, 62, 63, 64, 66, 67, 68, 70, 72, 74, 75, 76, 78, 79, 80, 82, 83, 84, 86, 88, 90, 91, 92, 94, 96, 98, 99, 100 ]
[ "nonn", "easy" ]
A206454
[ 8, 64, 512, 4096, 32768, 262144, 2097152, 16777215, 134217712, 1073741632, 8589932544, 68719456256, 549755617280, 4398044676096, 35184355311616, 281474825715713, 2251798471507992, 18014386698322304, 144115084996645890, 1152920611253710800, 9223364340274070000 ]
[ "nonn", "easy" ]
A147445
[ 1, 1, 1, 1, 1, 1, 1, 1, 17, 25, 429, 829, 9009, 20193, 266141, 668397, 14825377, 42405573, 3005094483, 10429358879, 1452403109221, 6133471038695, 1040989050455951, 5208691049601333 ]
[ "nonn" ]
A341201
[ 1, 7, 7, 27, 7, 49, 7 ]
[ "nonn", "mult", "more" ]
A097910
[ 1, 1, 5, 5, 9, 27, 31, 49, 71, 185, 207, 339, 457, 685, 1421, 1745, 2577, 3615, 5143, 6877, 13439, 15965, 23823, 31983, 45553, 59425, 83549, 139013, 173769, 244803, 330391, 452257, 597935, 810929, 1052559, 1692723, 2074321, 2890333, 3783821, 5178041, 6658377 ]
[ "easy", "nonn" ]
A092602
[ 3, 5, 11, 19, 31, 79, 101, 113, 127, 163, 173, 223, 271, 383, 419, 431, 503, 571, 599, 619, 641, 659, 673, 683, 701, 733, 757, 827, 863, 971, 1013, 1033, 1087, 1193, 1249, 1423, 1433, 1453, 1483, 1579, 1621, 1667, 1723, 2003, 2113, 2179 ]
[ "nonn" ]
A160945
[ 2, 11, 42, 74, 101, 794, 1001, 7994, 9101, 9321, 10001, 73001, 79994, 100001, 340001, 735222, 799994, 1000001, 3070001, 7999994, 9382712, 9910001, 10000001, 73000001, 79000001, 79999994, 100000001, 361300001, 799999994, 1000000001, 1281010001, 3692210001 ]
[ "nonn", "base" ]
A284447
[ 1, 2, 3, 4, 5, 6, 7, 12, 13, 14, 15, 8, 9, 10, 11, 20, 21, 22, 23, 16, 17, 18, 19, 28, 29, 30, 31, 24, 25, 26, 27, 52, 53, 54, 55, 48, 49, 50, 51, 60, 61, 62, 63, 56, 57, 58, 59, 36, 37, 38, 39, 32, 33, 34, 35, 44, 45, 46, 47, 40, 41, 42, 43 ]
[ "nonn" ]
A322944
[ 1, 1, 1, 2, 6, 1, 6, 38, 15, 1, 24, 272, 188, 28, 1, 120, 2200, 2340, 580, 45, 1, 720, 19920, 30280, 11040, 1390, 66, 1, 5040, 199920, 413560, 206920, 37450, 2842, 91, 1, 40320, 2204160, 5989760, 3931200, 955920, 102816, 5208, 120, 1 ]
[ "nonn", "tabl" ]
A305219
[ 0, 9, 15, 49, 170, 581, 2184, 7680, 28315, 102908, 375864, 1374468, 5018055, 18347377, 67036712, 245038336, 895604222, 3273509712, 11965243920, 43734676685, 159858697264, 584313110135, 2135780659951, 7806706628138 ]
[ "nonn" ]
A096140
[ 0, 1, 3, 10, 29, 81, 220, 589, 1563, 4126, 10857, 28513, 74792, 196041, 513619, 1345282, 3522981, 9224881, 24153636, 63239221, 165569195, 433476726, 1134874513, 2971168705, 7778667024, 20364889681, 53316094755, 139583544634 ]
[ "nonn", "easy" ]
A207506
[ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 19, 20, 22, 28, 29, 31, 32, 34, 35, 43, 44, 46, 52, 53, 59, 62, 64, 65, 68, 74, 77, 79, 82, 83, 88, 100, 105, 119, 121, 147, 150, 154, 159, 161, 162, 164, 178, 183, 186, 187, 192, 193, 196, 198, 208, 209, 214, 219, 220, 231, 233, 238, 243, 244, 257, 269, 278, 280, 290, 294, 298, 305, 313, 314, 315, 318 ]
[ "nonn", "base" ]
A382312
[ 1, 0, 1, 0, 2, 0, 3, 1, 0, 5, 3, 0, 8, 8, 0, 14, 17, 1, 0, 24, 36, 4, 0, 43, 72, 13, 0, 77, 143, 36, 0, 140, 281, 90, 1, 0, 256, 550, 213, 5, 0, 472, 1073, 484, 19, 0, 874, 2093, 1068, 61, 0, 1628, 4079, 2308, 177, 0, 3045, 7950, 4912, 476, 1, 0, 5719, 15498, 10328, 1217, 6 ]
[ "nonn", "tabf", "easy" ]
A358790
[ 3, 5, 3, 3, 5, 5, 3, 7, 3, 5, 5, 3, 3, 7, 5, 11, 5, 3, 7, 5, 5, 3, 13, 3, 5, 11, 3, 13, 5, 5, 5, 5, 7, 7, 5, 31, 5, 7, 3, 11, 19, 3, 3, 5, 11, 5, 5, 3, 7, 19, 5, 3, 11, 5, 5, 5, 3, 7, 5, 31, 5, 5, 3, 3, 19, 11, 3, 7, 5, 11, 41, 17, 13, 13, 5, 29, 5, 7, 3, 5, 5, 5, 13, 13, 5, 5, 3, 11, 13, 5, 19 ]
[ "nonn" ]
A239239
[ 0, 0, 1, 0, 1, 0, 2, 1, 2, 2, 3, 4, 4, 7, 5, 11, 7, 16, 10, 23, 15, 32, 21, 43, 32, 57, 45, 74, 66, 96, 92, 123, 129, 157, 175, 199, 239, 253, 316, 320, 419, 406, 544, 514, 704, 652, 898, 825, 1142, 1045, 1435, 1321, 1798, 1669, 2234, 2103, 2766, 2646, 3404 ]
[ "nonn", "easy" ]
A142471
[ 0, 0, 2, 2, 6, 14, 86, 1206, 103718, 125083910, 12973452977382, 1.6227702246120822e+21, 2.1052933202100473e+34, 3.416407314111575e+55 ]
[ "nonn" ]
A043325
[ 1, 3, 5, 7, 9, 11, 15, 17, 19, 21, 23, 25, 27, 29, 33, 35, 45, 47, 51, 53, 55, 57 ]
[ "dead" ]
A118658
[ 2, 0, 2, 2, 4, 6, 10, 16, 26, 42, 68, 110, 178, 288, 466, 754, 1220, 1974, 3194, 5168, 8362, 13530, 21892, 35422, 57314, 92736, 150050, 242786, 392836, 635622, 1028458, 1664080, 2692538, 4356618, 7049156, 11405774, 18454930, 29860704, 48315634, 78176338 ]
[ "nonn", "easy" ]
A031336
[ 5, 13, 23, 37, 47, 61, 73, 89, 103, 113, 137, 151, 167, 181, 197, 223, 233, 251, 269, 281, 307, 317, 347, 359, 379, 397, 419, 433, 449, 463, 487, 503, 523, 557, 571, 593, 607, 619, 643, 659, 677, 701, 727, 743, 761, 787, 811, 827, 853, 863, 883, 911 ]
[ "nonn", "easy" ]
A118249
[ 0, 1, 1, 1, 0, 0, 1, 1, 0, 1, 0, 0, 0, 1, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1, 0, 1, 0, 0, 1, 1, 1, 1, 0, 1, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 0, 1, 1, 1, 0, 1, 0, 1, 1, 1, 1, 0, 1, 1, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0, 1, 0, 1 ]
[ "easy", "nonn", "base" ]
A064873
[ 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0 ]
[ "nonn" ]
A241143
[ 5, 10, 13, 15, 16, 17, 18, 19, 20, 21, 25, 26, 29, 30, 31, 32, 33, 34, 35, 39, 40, 42, 43, 45, 49, 50, 51, 53, 55, 60, 64, 65, 66, 67, 68, 70, 71, 75, 80, 83, 84, 85, 86, 90, 95, 96, 97, 98, 99, 100, 101, 102, 103, 105, 107, 110, 113, 115, 116, 117, 118, 120, 123, 125, 126, 128, 129, 130, 131, 132, 133, 134, 135, 139, 140 ]
[ "base", "easy", "nonn" ]
A274677
[ 1, 2, 3, 4, 27, 32, 63, 69, 107, 145, 154, 173, 190, 271, 412, 1219, 1509, 2392, 4444, 5567, 7424, 32174, 51573 ]
[ "nonn", "more" ]
A187320
[ 0, 1, 2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 13, 14, 15, 17, 18, 19, 20, 21, 22, 23, 25, 26, 27, 28, 29, 30, 31, 33, 34, 35, 36, 37, 38, 39, 41, 42, 43, 44, 45, 46, 47, 49, 50, 51, 52, 53, 54, 55, 57, 58, 59, 60, 61, 62, 63, 65, 66, 67, 68, 69, 70, 71, 73, 74, 75, 76, 77, 78, 79, 81, 82, 83, 84, 85, 86, 87, 89, 90, 91, 92, 93, 94, 95, 97, 98, 99, 100, 101, 102, 103, 105, 106, 107, 108, 109, 110, 111, 113, 114, 115, 116, 117, 118, 119, 121, 122, 123, 124, 125, 126, 127, 128, 130, 131, 132, 133, 134, 135, 136 ]
[ "nonn" ]
A228980
[ 4, 16, 64, 252, 992, 3900, 15328, 60228, 236624, 929580, 3651712, 14344836, 56349296, 221349132, 869490976, 3415475172, 13416415184, 52701313836, 207017071552, 813187592388, 3194296661552, 12547572276300, 49288333901920 ]
[ "nonn" ]
A097944
[ 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3 ]
[ "nonn", "base", "easy" ]
A250093
[ 1, 3, 34, 987, 3001, 103683, 7778742049, 10610209857723, 37889062373143900, 14168993927170476000, 8.670007398507949e+24, 9.645232712227304e+26, 9.32022077813832e+34, 4.093478246662684e+40 ]
[ "nonn" ]
A048536
[ 30, 1332, 33306, 3303306, 23333730, 33333302, 23433333320, 333339373380, 13393363833330, 337333336323132, 33333334306433532, 332333844339333300, 3383333633731033000, 313337139333377360000, 1.3353333313393333e+21, 2.361333383333333e+23, 3.2933338373305835e+24 ]
[ "nonn", "base" ]
A063059
[ 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 1, 1, 1, 0, 2, 1, 3, 2, 1, 3, 2, 1, 1, 1, 1, 1, 2, 1, 3, 2, 1, 3, 2, 1, 1, 1, 1, 1, 2, 1, 3, 2, 1, 3, 2, 1, 1, 1, 1, 1, 1, 3, 1, 3, 1, 1, 1, 1, 1, 1, 3, 1, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 2, 1, 2, 1, 3, 2, 1, 3, 2, 1 ]
[ "base", "nonn" ]
A345901
[ 2, 2, 2, 3, 2, 4, 5, 2, 2, 2, 4, 2, 8, 2, 2, 2, 4, 3, 2, 6, 2, 2, 2, 8, 2, 4, 3, 2, 2, 3, 6, 2, 3, 2, 2, 2, 10, 3, 2, 3, 3, 3, 3, 13, 2, 2, 2, 4, 2, 5, 4, 2, 2, 2, 5, 2, 6, 2, 2, 2, 6, 3, 3, 4, 2, 2, 2, 12, 2, 3, 2, 2, 2, 5, 5, 2, 3, 2, 3, 2, 21, 2, 2, 2, 4, 3 ]
[ "nonn" ]
A243760
[ 0, 1, 1, 4, 11, 40, 138, 512, 1903, 7256, 27910, 108704, 426702, 1688080, 6719252, 26895360, 108171319, 436935544, 1771673454, 7208637920, 29422782282, 120436341360, 494277785356, 2033457590656, 8384379887334, 34642507651952, 143413034719036, 594776592764224 ]
[ "nonn" ]
A133265
[ 2, 2, 2, 4, 2, 6, 2, 8, 2, 10, 2, 12, 2, 14, 2, 16, 2, 18, 2, 20, 2, 22, 2, 24, 2, 26, 2, 28, 2, 30, 2, 32, 2, 34, 2, 36, 2, 38, 2, 40, 2, 42, 2, 44, 2, 46, 2, 48, 2, 50, 2, 52, 2, 54, 2, 56, 2, 58, 2, 60, 2, 62, 2, 64, 2, 66, 2, 68, 2, 70, 2, 72, 2, 74, 2, 76, 2, 78, 2, 80 ]
[ "nonn", "easy" ]
A315766
[ 1, 6, 12, 18, 24, 30, 30, 42, 48, 48, 54, 60, 72, 72, 78, 90, 90, 96, 102, 108, 114, 120, 126, 126, 132, 144, 150, 150, 162, 168, 168, 174, 180, 192, 192, 198, 204, 204, 216, 222, 228, 234, 240, 246, 246, 252, 264, 270, 270, 276 ]
[ "nonn" ]
A005229
[ 1, 1, 2, 3, 3, 4, 5, 6, 6, 7, 7, 8, 9, 10, 10, 11, 12, 12, 13, 14, 15, 16, 16, 17, 17, 18, 19, 19, 20, 20, 21, 22, 23, 24, 24, 25, 26, 26, 27, 28, 29, 29, 30, 30, 30, 31, 32, 33, 34, 35, 36, 36, 37, 37, 38, 39, 39, 40, 41, 42, 43, 43, 44, 45, 45, 45, 46 ]
[ "nonn", "nice", "easy" ]
A254299
[ 512, 18098, 517934, 9867433, 201263574, 2586900868, 33988604549, 717415809480, 7290679926977, 138313192698115, 3670559003096241, 43244322834926310, 535368753213897340, 133183455081275740000, 1.2051544454467845e+21 ]
[ "nonn" ]
A344501
[ 1, 1, 2, 10, 40, 176, 916, 4852, 27350, 163270, 1009396, 6504356, 43400512, 298682320, 2118282440, 15433768456, 115345136566, 882900083222, 6910879999420, 55255039432300, 450744068706896, 3747796352076736, 31734090674951510, 273414453918459800, 2395202886317348000 ]
[ "nonn" ]
A330853
[ 6, 12, 18, 30, 24, 54, 42, 36, 48, 60, 78, 66, 72, 84, 90, 96, 114, 102, 162, 108, 126, 120, 132, 150, 138, 144, 174, 168, 156, 192, 204, 180, 198, 252, 270, 216, 222, 186, 228, 210, 240, 282, 246, 234, 276, 264, 258, 312, 330, 318, 288, 306, 294, 336, 300, 378 ]
[ "nonn" ]
A041069
[ 1, 2, 5, 62, 129, 320, 3969, 8258, 20485, 254078, 528641, 1311360, 16264961, 33841282, 83947525, 1041211582, 2166370689, 5373952960, 66653806209, 138681565378, 344016936965, 4266884808958, 8877786554881, 22022457918720, 273147281579521, 568317021077762 ]
[ "nonn", "cofr", "frac", "easy" ]
A373684
[ 1, 1, 1, 7, 49, 181, 1201, 16171, 122977, 971209, 16788961, 206578351, 2094314641, 40260673597, 694617709969, 9088535091091, 187060085419201, 4109646055718161, 68029103349383620, 1498126927153125000, 39199612737165360000, 799248202624341200000 ]
[ "nonn" ]
A016797
[ 512, 1953125, 134217728, 2357947691, 20661046784, 118587876497, 512000000000, 1801152661463, 5429503678976, 14507145975869, 35184372088832, 78815638671875, 165216101262848, 327381934393961, 618121839509504, 1119130473102767, 1953125000000000, 3299763591802133 ]
[ "nonn", "easy" ]
A389177
[ 2, 4, 8, 15, 21, 36, 43, 69, 76, 116, 122, 179, 183, 260, 261, 361, 358, 484, 476, 631, 617, 804, 783, 1005, 976, 1236, 1198, 1499, 1451, 1796, 1737, 2129, 2058, 2500, 2416, 2911, 2813, 3364, 3251, 3861, 3732, 4404, 4258, 4995, 4831, 5636, 5453, 6329, 6126 ]
[ "nonn", "easy" ]
A361880
[ 1, 3, 24, 207, 1893, 17952, 174402, 1723494, 17250000, 174354822, 1776119970, 18208500000, 187659221409, 1942674634371, 20187543581880, 210472842939975, 2200677521078253, 23068297001178240, 242353695578011420, 2551260130246575000, 26905595698893124000 ]
[ "nonn" ]
A298957
[ 0, 0, 0, 0, 1, 0, 0, 1, 1, 0, 0, 2, 1, 2, 0, 0, 3, 2, 2, 3, 0, 0, 5, 3, 4, 3, 5, 0, 0, 8, 5, 6, 6, 5, 8, 0, 0, 13, 8, 11, 10, 11, 8, 13, 0, 0, 21, 13, 18, 22, 22, 18, 13, 21, 0, 0, 34, 21, 31, 47, 102, 47, 31, 21, 34, 0, 0, 55, 34, 53, 143, 390, 390, 143, 53, 34, 55, 0, 0, 89, 55, 91, 418, 1990 ]
[ "nonn", "tabl" ]
A007616
[ 3, 11, 101, 131, 181, 313, 383, 10301, 11311, 13331, 13831, 18181, 30103, 30803, 31013, 38083, 38183, 1003001, 1008001, 1180811, 1183811, 1300031, 1303031, 1311131, 1333331, 1338331, 1831381, 1880881, 1881881, 1883881, 3001003, 3083803, 3103013, 3181813, 3310133 ]
[ "nonn", "base" ]
A247632
[ 1, 4, 6, 12, 15, 21, 25, 29, 38, 42, 48, 52, 55, 60, 64, 66, 70, 72, 78, 83, 86, 89, 93, 96, 100, 102, 104, 107, 109, 111, 113, 119, 122, 130, 134, 136, 139, 144, 151, 153, 157, 159, 163, 166, 169, 173, 177, 179, 184, 187, 191, 195, 198, 202, 204, 209, 211 ]
[ "nonn", "easy", "base" ]
A176638
[ 1, 2, 5, 12, 34, 115, 446, 1881, 8386, 38472, 179701, 849285, 4047541, 19415118, 93623028, 453486806, 2205081449, 10758731196, 52651373968, 258365785954, 1270930958357, 6265738653554, 30952863554094, 153191072337297 ]
[ "nonn" ]
A203766
[ 1, 2, 50, 10000, 169000000, 51409800000000, 3.71435805e+21, 8.5875958116e+30, 9.487238856297219e+42, 5.240564594042414e+56 ]
[ "nonn" ]
A170588
[ 1, 3, 6, 12, 24, 48, 96, 192, 384, 768, 1536, 3072, 6144, 12288, 24576, 49152, 98304, 196608, 393216, 786432, 1572864, 3145728, 6291456, 12582912, 25165824, 50331648, 100663296, 201326592, 402653184, 805306368, 1610612736, 3221225472 ]
[ "nonn" ]
A047354
[ 0, 1, 2, 7, 8, 9, 14, 15, 16, 21, 22, 23, 28, 29, 30, 35, 36, 37, 42, 43, 44, 49, 50, 51, 56, 57, 58, 63, 64, 65, 70, 71, 72, 77, 78, 79, 84, 85, 86, 91, 92, 93, 98, 99, 100, 105, 106, 107, 112, 113, 114, 119, 120, 121, 126, 127, 128, 133, 134, 135, 140, 141 ]
[ "nonn", "easy" ]
A005788
[ 11, 14, 15, 17, 19, 20, 21, 24, 26, 27, 30, 32, 33, 34, 35, 36, 37, 38, 39, 40, 42, 43, 44, 45, 46, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 61, 62, 63, 64, 65, 66, 67, 69, 70, 72, 73, 75, 76, 77, 78 ]
[ "nonn" ]
A076096
[ 1, 8, 18, 9261000, 329422500, 1.3456677968449745e+22, 1.1022732501667945e+34, 9.932592348181486e+40 ]
[ "nonn" ]