id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A355015
[ 1, 2, 3, 7, 23, 719, 1169951 ]
[ "nonn", "hard", "more" ]
A142536
[ 59, 271, 907, 1013, 1543, 1861, 2179, 3557, 3769, 4723, 5147, 5783, 6101, 6737, 6949, 7691, 8009, 8221, 8539, 8963, 9281, 9811, 11083, 11719, 12037, 12143, 13309, 13627, 14051, 14369, 15217, 15641, 15959, 17231, 17443, 17761, 18397, 18503, ...
[ "nonn", "easy" ]
A022215
[ 1, 488281, 198682027181, 78236053707784180, 3.0609934249224267e+22, 1.1960833022875372e+28, 4.672499438759279e+33, 1.825218456001772e+39, 7.129777845941483e+44 ]
[ "nonn", "easy" ]
A208503
[ 13, 169, 234, 650, 1794, 4992, 13806, 38376, 106236, 295074, 817362, 2269098, 6288048, 17450550, 48371544, 134210700, 372088314, 1032237882, 2862135666, 7939298016, 22015398366, 61064779464, 169339275612, 469681757298 ]
[ "nonn" ]
A290614
[ 1, 1, 8, 18, 27, 216, 1764, 10648, 74088, 1072148, 21024576, 348913664, 7715561070, 275259237625, 12230590464000, 592493444540212, 37366900397568000, 3330826385498445300, 370530347743457900000, 4.9507287177905436e+22 ]
[ "nonn", "more" ]
A032107
[ 2, 4, 24, 192, 1920, 23040, 322560, 5160960, 92897280, 1857945600, 40874803200, 980995276800, 25505877196800, 714164561510400, 21424936845312000, 685597979049984000, 23310331287699456000 ]
[ "nonn" ]
A017676
[ 1, 64, 729, 4096, 15625, 23328, 117649, 262144, 531441, 100000, 1771561, 497664, 4826809, 3764768, 2278125, 16777216, 24137569, 34012224, 47045881, 32000000, 85766121, 56689952, 148035889, 95551488, 244140625, 11881376, 387420489, 240945152, 594823321 ]
[ "nonn", "frac" ]
A339162
[ 0, 1, 0, 2, 2, 2, 8, 8, 14, 14, 44, 44, 74, 98, 128, 272, 326, 470, 644, 932, 1106, 2234, 2552, 3800, 4958, 7070, 9068, 12140, 20042, 24674, 34256, 45632, 61814, 80630, 109316, 135572, 217778, 262298, 362744, 466664, 636494, 805454, ...
[ "nonn" ]
A081003
[ 2, 6, 35, 234, 1598, 10947, 75026, 514230, 3524579, 24157818, 165580142, 1134903171, 7778742050, 53316291174, 365435296163, 2504730781962, 17167680177566, 117669030460995, 806515533049394, 5527939700884758, 37889062373143900, 259695496911122600 ]
[ "nonn", "easy" ]
A144348
[ 1, 24, 600, 17160, 563976, 21095424, 887785920, 41589313920, 2148534533376, 121416817826304, 7453542764828160, 494050046853242900, 35173674025152640000, 2.6773075323715857e+21, 2.1699137675917338e+23, 1.865854898293719e+25, 1.6966771984069507e+27 ]
[ "nonn", "easy" ]
A129449
[ 1, -1, 0, -2, 1, 0, 2, 0, 0, -2, 2, 0, 1, -1, 0, -2, 0, 0, 2, -2, 0, -2, 0, 0, 3, 0, 0, 0, 2, 0, 2, -2, 0, -2, 0, 0, 2, -1, 0, -2, 1, 0, 0, 0, 0, -4, 2, 0, 2, 0, 0, -2, 0, 0, 2, -2, 0, 0, 2, 0, 1,...
[ "sign" ]
A067895
[ 1, 21, 422, 8444, 168888, 3377776, 67555552, 1351111104, 27022222208, 540444444416, 10808888888832, 216177777777664, 4323555555555328, 86471111111110660, 1729422222222221300, 34588444444444443000, 691768888888888900000, 1.3835377777777777e+22, 2.7670755555555556e+23 ]
[ "nonn", "base", "easy" ]
A219678
[ 1, 5, 66, 686, 6721, 58616, 476781, 3608348, 25781989, 174810494, 1132328205, 7037425172, 42140788751, 243918472743, 1368647208107, 7462686474948, 39626100989332, 205283558905562, 1039263967957447, 5149048724566723, 24998922141116056, 119073277412589340 ]
[ "nonn" ]
A236390
[ 1, 9, 11, 15, 34, 36, 43, 80, 152, 159, 168, 200, 205, 354, 402, 957, 1898, 2519, 2729, 2932, 3075, 3740, 4985, 5839, 7911, 9868, 10210, 24624, 27735, 31553, 37190 ]
[ "nonn" ]
A001772
[ 2, 26, 50, 54, 126, 134, 246, 354, 362, 950, 1310, 2498, 6926, 11826, 31734, 67850, 74726, 96150, 374114, 696438, 743322, 1044086, 1104606, 1261478 ]
[ "hard", "nonn", "nice", "more" ]
A013761
[ 289, 1419857, 6975757441, 34271896307633, 168377826559400930, 827240261886336800000, 4.0642314066475725e+24, 1.9967568900859523e+28, 9.810066600992284e+31, 4.819685721067509e+35 ]
[ "nonn", "easy" ]
A050371
[ 1, 0, 1, 1, 1, 1, 2, 2, 1, 2, 3, 3, 3, 4, 4, 5, 5, 4, 8, 6, 7, 4, 8, 9, 7, 11, 12, 11, 8, 13, 14, 8, 19, 21, 15, 16, 22, 16, 23, 12, 23, 26, 20, 26, 36, 22, 29, 35, 29, 34, 14, 44, 41, 11, 40, 40, 58, 3...
[ "nonn" ]
A067012
[ 4, 6, 8, 9, 12, 15, 18, 21, 22, 24, 25, 26, 27, 28, 33, 36, 39, 40, 42, 44, 45, 46, 48, 49, 51, 52, 54, 55, 56, 57, 58, 60, 62, 63, 64, 65, 66, 68, 69, 72, 75, 77, 78, 80, 81, 82, 84, 85, 86, 87, 88, 90, 93, 94...
[ "base", "nonn" ]
A369345
[ 1, 1, 1, 1, 1, 1, 3, 3, 5, 17, 31, 61, 139, 309, 701, 1651, 3849, 8929, 22295, 53777, 131025, 335619, 837999, 2107947, 5484373, 14071891, 36275323, 95881995, 250956301, 659257445, 1763642977, 4685724391, 12496708267, 33766814039, 90846586161, 245...
[ "nonn" ]
A044926
[ 1, 1, 1, 2, -2, 2, 2, 2, 2, -2, 2, 2, 2, 2, -2, -1, 3, 3, 3, -1, 3, -1, -1, 3, 3, -1, 3, 3, 3, 3, -1, -1, 3, 3, 3, 3, -1, 3, 3, -1, -1, 3, -1, 3, 3, 3, -1, -1, 3, 3, 3, 3, -1, 3, 3, 3, 3, -1, 3, -1,...
[ "sign", "base" ]
A017175
[ 1, 1000, 6859, 21952, 50653, 97336, 166375, 262144, 389017, 551368, 753571, 1000000, 1295029, 1643032, 2048383, 2515456, 3048625, 3652264, 4330747, 5088448, 5929741, 6859000, 7880599, 8998912 ]
[ "nonn", "easy" ]
A155713
[ 49, 70, 105, 145, 150, 166, 196, 214, 225, 241, 249, 280, 294, 321, 406, 409, 420, 441, 454, 505, 580, 600, 601, 609, 630, 664, 681, 694, 721, 726, 745, 769, 784, 841, 856, 870, 886, 889, 900, 934, 945, 964, 996, 1009, 1030, 1...
[ "easy", "nonn" ]
A059551
[ 2, 5, 8, 10, 13, 16, 18, 21, 24, 26, 29, 32, 34, 37, 40, 42, 45, 48, 50, 53, 56, 58, 61, 64, 66, 69, 72, 75, 77, 80, 83, 85, 88, 91, 93, 96, 99, 101, 104, 107, 109, 112, 115, 117, 120, 123, 125, 128, 131, 133, 136, ...
[ "nonn", "easy" ]
A270300
[ 104, 208, 416, 832, 1352, 1664, 1768, 1976, 2392, 2704, 3016, 3224, 3328, 3536, 3848, 3952, 4264, 4472, 4784, 4888, 5408, 5512, 6032, 6136, 6344, 6448, 6656, 6968, 7072, 7384, 7592, 7696, 7904, 8216, 8528, 8632, 8944, 9256, 9568, 9776, ...
[ "nonn" ]
A373099
[ 1, 3, 9, 5, 5, 1, 5, 7, 9, 9, 1, 9, 3, 7, 7, 1, 7, 5, 3, 3, 1, 3, 9, 5, 5, 1, 5, 7, 9, 9, 1, 9, 3, 7, 7, 1, 7, 5, 3, 3, 1, 3, 9, 5, 5, 1, 5, 7, 9, 9, 1, 9, 3, 7, 7, 1, 7, 5, 3, 3, 1, 3, 9, 5...
[ "nonn", "base", "easy" ]
A142535
[ 5, 641, 853, 1171, 1277, 1489, 1913, 2549, 3079, 3821, 4139, 4457, 4987, 5623, 6047, 6577, 7001, 7213, 8167, 8273, 8803, 9227, 9439, 10181, 10499, 10711, 12301, 12619, 13043, 13679, 13997, 14633, 14951, 15269, 16223, 17389, 17707, 18131, 18...
[ "nonn", "easy" ]
A225572
[ 0, 1, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 2, 2, 5, 3, 1, 2, 2, 1, 1, 24, 1, 2, 2, 9, 78, 1, 94, 5, 1, 27, 2, 1, 1, 2, 1, 4, 2, 2, 2, 20, 1, 4, 1, 1, 5, 23, 43, 1, 9, 1, 3, 1, 3, 1, 2, 1, 2, 4, 1, 1, ...
[ "nonn", "cofr", "easy" ]
A102905
[ 3, 3, 2, 1, 5, 8, 15, 19, 36, 57, 89, 142, 233, 377, 612, 985, 1599, 2586, 4181, 6763, 10946, 17711, 28659, 46366, 75027, 121395, 196418, 317809, 514229, 832040, 1346271, 2178307, 3524580, 5702889, 9227465, 14930350, 24157817, 39088169 ]
[ "nonn" ]
A232438
[ 25, 50, 100, 169, 200, 225, 289, 338, 400, 450, 578, 676, 800, 841, 900, 1156, 1225, 1352, 1369, 1521, 1600, 1681, 1682, 1800, 2025, 2312, 2450, 2601, 2704, 2738, 2809, 3025, 3042, 3200, 3362, 3364, 3600, 3721, 4050, 4624, 4900, 5202,...
[ "nonn" ]
A106551
[ 26, 38, 42, 62, 86, 68, 94, 134, 80, 158, 146, 206, 110, 230, 172, 278, 126, 224, 170, 250, 350, 374, 200, 302, 446, 194, 494, 260, 518, 380, 228, 406, 566, 290, 638, 484, 350, 710, 296, 1232, 734, 536, 562, 330, 806, 614, 8...
[ "base", "easy", "nonn", "look" ]
A191986
[ 0, 1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 23, 32, 40, 44, 46, 47, 64, 80, 88, 92, 94, 95, 128, 160, 176, 184, 188, 190, 191, 256, 320, 352, 368, 376, 380, 382, 383, 512, 640, 704, 736, 752, 760, 764, 766, 767, 1024, 1280, ...
[ "nonn" ]
A164112
[ 1, 42, 1722, 70602, 2894682, 118681962, 4865959581, 199504307520, 8179675161840, 335366622329760, 13750029083987280, 563751092750630400, 23113790715369816000, 947665251746544900000, 3.885426845068123e+22, 1.593024724769969e+24, 6.531400216554434e+25 ]
[ "nonn" ]
A384527
[ 17, 47, 257, 587, 1277, 4637, 14537, 19457, 71327, 101267, 113147, 115757, 150197, 179807, 191447, 193367, 267887, 302567, 344237, 408197, 416387, 442817, 482387, 536267, 566537, 652727, 886967, 1043747, 1268777, 1300127, 1373147, 1464257, 1589657, 1...
[ "nonn" ]
A067015
[ 1, 1, 4, 1, 9, 9, 3, 1, 16, 72, 96, 32, 1, 25, 225, 910, 1695, 1355, 440, 70, 5, 1, 36, 522, 3936, 16659, 39996, 52860, 36108, 11871, 1960, 270, 36, 3, 1, 49, 1029, 12166, 89551, 429058, 1361619, 2864113, 3946208, 3481835, 19048...
[ "tabf", "nonn" ]
A182592
[ 1, 1, 1, 2, 2, 1, 1, 2, 3, 1, 2, 1, 3, 3, 2, 2, 3, 3, 3, 3, 4, 2, 3, 4, 3, 4, 3, 3, 5, 2, 3, 3, 4, 6, 3, 3, 6, 3, 5, 2, 6, 2, 3, 4, 4, 1, 2, 1, 6, 5, 3, 3, 7, 5, 3, 2, 5, 2, 7, 3, 5, 6, 4, 4...
[ "nonn" ]
A238393
[ 1, 1, 3, 2, 3, 2, 5, 2, 6, 3, 3, 5, 1, 9, 3, 4, 5, 5, 6, 2, 7, 3, 5, 8, 3, 4, 8, 10, 7, 10, 6, 7, 9, 8, 8, 6, 6, 4, 12, 10, 10, 8, 6, 6, 5, 7, 8, 6, 10, 5, 9, 9, 11, 7, 7, 6, 9, 11, 8, 7, 11, 6,...
[ "nonn" ]
A138333
[ -256, 3072, -19712, 90112, -329472, 1025024, -2818816, 7028736, -16180736, 34850816, -70946304, 137592832, -255836672, 458422272, -794962432, 1338884096, -2196606720, 3519493120, -5519205120, 8487198720, -12819206400, 19045678080, -27869287680 ]
[ "sign" ]
A291846
[ 1, 1, 5, 33, 283, 2995, 37723, 551047, 9157923, 170606547, 3521075919, 79741123539, 1965955092517, 52414187219485, 1502559229282213, 46087421890091144, 1506033038595292400, 52232959640093490000, 1.9162635665116852e+21, 7.414204781436505e+22, 3.017192203838383e+24, 1.2882902...
[ "nonn" ]
A163572
[ 1, 1, 3, 7, 19, 39, 169, 765, 2183, 4131, 11561, 55157, 666381, 8175433, 68536455, 355280675, 1048740623, 1931107235, 5055100985, 13108206741, 38734589993, 143320957605, 1022112572635, 26523801989399, 914332703582521 ]
[ "nonn" ]
A368180
[ 0, 1, 2, 2, 5, 5, 9, 4, 51, 6, 34, 57, 48, 38, 132, 48, 167, 32, 205, 167, 130, 106, 167, 243, 50, 159, 125, 369, 297, 119, 702, 130, 844, 84, 500, 50, 1215, 119, 1424, 142, 840, 312, 126, 3041, 70, 7209, 22143, 540, 162...
[ "nonn", "easy" ]
A228721
[ 2, 1, 9, 9, 1, 1, 4, 8, 5, 7, 5, 1, 2, 8, 5, 5, 2, 6, 6, 9, 2, 3, 8, 5, 0, 3, 6, 8, 2, 9, 5, 6, 5, 2, 0, 1, 8, 9, 3, 8, 0, 1, 8, 5, 7, 9, 5, 6, 2, 5, 7, 4, 0, 7, 4, 6, 8, 2, 4, 6, 1, 2, 1, 4...
[ "nonn", "cons" ]
A168087
[ 1, 2, 3, 7, 4, 11, 12, 15, 16, 14, 27, 24, 47, 44, 127, 124, 147, 144, 224 ]
[ "nonn", "word" ]
A154159
[ 1, 1, 0, 7, 3, 0, 9, 3, 6, 4, 9, 6, 2, 4, 5, 4, 1, 1, 5, 9, 5, 6, 7, 7, 3, 1, 4, 3, 1, 6, 3, 1, 3, 0, 0, 5, 8, 6, 2, 1, 6, 1, 0, 4, 6, 4, 3, 4, 1, 5, 2, 6, 8, 7, 0, 6, 8, 4, 9, 1, 8, 7, 9, 8...
[ "nonn", "cons" ]
A215074
[ 1, 1, 2, 4, 12, 40, 154, 660, 3113, 15893, 86857, 502092, 3036032, 19006591, 122119857, 799665333, 5308126648, 35576413852, 240063646519, 1627605038848 ]
[ "nonn", "more" ]
A057396
[ 54, 144, 900, 2916, 14112, 59616, 280908, 1304100, 5974254, 28501416, 133160508, 641771424, 3037720320, 14671207872, 70242548778, 340125653664, 1640652533460, 7963315328520, 38614602921930 ]
[ "nonn" ]
A297062
[ 0, 1, 10, 102, 120, 201, 210, 1023, 1032, 1203, 1230, 1302, 1320, 2013, 2031, 2103, 2130, 2301, 2310, 3012, 3021, 3102, 3120, 3201, 3210, 10234, 10243, 10324, 10342, 10423, 10432, 12034, 12043, 12304, 12340, 12403, 12430, 13024, 13042, 13...
[ "nonn", "base" ]
A199068
[ 3, 7, 0, 8, 8, 7, 3, 4, 0, 1, 1, 1, 9, 9, 2, 0, 7, 0, 6, 0, 1, 4, 2, 9, 3, 4, 5, 7, 3, 4, 4, 8, 8, 9, 9, 2, 9, 4, 8, 9, 9, 8, 3, 1, 9, 9, 9, 7, 2, 7, 6, 9, 5, 6, 8, 7, 9, 0, 7, 1, 7, 0, 5, 0...
[ "nonn", "cons" ]
A022084
[ 1, 0, 0, 0, 62, 0, 0, 0, 1860, 0, 0, 0, 35960, 0, 0, 0, 503502, 0, 0, 0, 5440872, 0, 0, 0, 47229864, 0, 0, 0, 338599360, 0, 0, 2147483648, 2046701220, 0, 0, 0, 10604798246, 0, 0, 66571993088, 47775740520, 0, 0, 0, 189619489320, ...
[ "nonn" ]
A263114
[ 690, 12295, 186793, 2451774, 32967539, 436704585, 5681806458, 74169569127, 966450565505, 12565068890934, 163422952675987, 2125079662900321, 27626397338646690, 359160833412536700, 4669231561448806000 ]
[ "nonn" ]
A338912
[ 1, 1, 2, 1, 1, 2, 2, 1, 3, 1, 2, 1, 3, 1, 2, 1, 4, 2, 3, 2, 1, 1, 3, 2, 1, 4, 1, 3, 1, 2, 4, 2, 1, 3, 1, 2, 3, 1, 4, 5, 1, 2, 2, 4, 1, 2, 1, 5, 3, 1, 3, 1, 2, 4, 1, 6, 2, 1, 2, 3, 5, 1, 2, 1...
[ "nonn" ]
A235362
[ 6, 2, 9, 9, 6, 0, 5, 2, 4, 9, 4, 7, 4, 3, 6, 5, 8, 2, 3, 8, 3, 6, 0, 5, 3, 0, 3, 6, 3, 9, 1, 1, 4, 1, 7, 5, 2, 8, 5, 1, 2, 5, 7, 3, 2, 3, 5, 0, 7, 5, 3, 9, 9, 0, 0, 4, 0, 9, 8, 7, 5, 5, 6, 0...
[ "nonn", "cons", "easy" ]
A037660
[ 3, 13, 52, 211, 845, 3380, 13523, 54093, 216372, 865491, 3461965, 13847860, 55391443, 221565773, 886263092, 3545052371, 14180209485, 56720837940, 226883351763, 907533407053, 3630133628212, 14520534512851, 58082138051405 ]
[ "nonn", "base", "easy" ]
A249027
[ 1, 1, 2, 1, 2, 6, 1, 2, 12, 24, 1, 2, 24, 576, 120, 1, 2, 48, 55296, 161280, 720, 1, 2, 96, 36972288, 2781803520, 812851200, 5040, 1, 2, 192, 6268637952000, 52260618977280, 994393803303936000, 61479419904000, 40320 ]
[ "nonn", "tabl" ]
A174528
[ 1, 1, 1, 1, 8, 1, 1, 39, 39, 1, 1, 166, 708, 166, 1, 1, 677, 11584, 11584, 677, 1, 1, 2724, 186171, 753590, 186171, 2724, 1, 1, 10915, 2981685, 48417191, 48417191, 2981685, 10915, 1, 1, 43682, 47718190, 3101684114, 12443227012, 310168...
[ "nonn", "tabl" ]
A359201
[ 6, 10, 12, 15, 21, 24, 28, 30, 32, 36, 40, 45, 55, 60, 66, 78, 80, 84, 91, 96, 105, 112, 120, 136, 144, 153, 171, 180, 190, 192, 210, 220, 231, 253, 264, 276, 300, 312, 325, 351, 364, 378, 406, 420, 435, 448, 465, 480, 4...
[ "easy", "nonn" ]
A135188
[ 2, 20, 72, 80, 84, 108, 112, 156, 198, 200, 216, 324, 351, 378, 504, 522, 558, 612, 684, 738, 800, 902, 918, 936, 972, 1008, 1011, 1040, 1098, 1101, 1212, 1242, 1368, 1386, 1416, 1452, 1602, 1611, 1656, 1674, 1818, 1836, 1908, 199...
[ "nonn", "base" ]
A139932
[ 43, 73, 193, 283, 307, 337, 457, 523, 547, 673, 787, 937, 1033, 1297, 1627, 1657, 1723, 1777, 1867, 1987, 1993, 2593, 2617, 2683, 2713, 2833, 2857, 3163, 3187, 3307, 3313, 3643, 3673, 3907, 4003, 4153, 4177, 4243, 4297, 4363, 4483, 45...
[ "nonn", "easy" ]
A106391
[ 0, 1, 4, 18, 80, 365, 1692, 7945, 37648, 179595, 861020, 4143832, 20004096, 96810779, 469508340, 2281123530, 11100465216, 54093131147, 263929559436, 1289217255934, 6303934406640, 30853639964847, 151139139048084 ]
[ "easy", "nonn" ]
A227743
[ 0, 1, 3, 5, 47, 54, 79, 85, 92, 102, 111, 155, 165, 196, 209, 220, 255, 284, 297, 346, 373, 464, 511, 533, 745, 842, 1039, 1066, 1210, 1358, 1505, 1540, 1577, 1728, 1796, 1947, 2196, 3034, 3087, 3615, 3974, 4036, 4113, 4372, 474...
[ "nonn" ]
A037293
[ 1, 2, 6, 70, 12870, 601080390, 1832624140942590500, 2.3951146041928085e+37, 5.7686588234492064e+75 ]
[ "nonn", "easy" ]
A097347
[ 1, 2, 3, 5, 4, 6, 10, 8, 7, 11, 17, 13, 9, 12, 18, 26, 20, 15, 14, 19, 27, 37, 29, 22, 16, 21, 28, 38, 50, 40, 31, 24, 23, 30, 39, 51, 65, 53, 42, 33, 25, 32, 41, 52, 66, 82, 68, 55, 44, 35, 34, 43, 54, 67, 8...
[ "nonn", "tabl" ]
A042167
[ 1, 1, 2, 3, 35, 38, 73, 111, 5401, 5512, 10913, 16425, 191588, 208013, 399601, 607614, 29565073, 30172687, 59737760, 89910447, 1048752677, 1138663124, 2187415801, 3326078925, 161839204201, 165165283126, 327004487327, 492169770453, 5740871962310 ]
[ "nonn", "frac", "easy" ]
A043439
[ 292, 804, 1316, 1828, 2084, 2148, 2212, 2276, 2308, 2316, 2324, 2332, 2336, 2337, 2338, 2339, 2341, 2342, 2343, 2348, 2356, 2364, 2404, 2468, 2532, 2852, 3364, 3876, 4388, 4900, 5412, 5924, 6180, 6244, 6308, 6372, 6404 ]
[ "nonn", "base" ]
A211934
[ 2, 4, 24, 182, 1652, 16854, 186114 ]
[ "nonn" ]
A243403
[ 0, 0, 1, 1, 2, 0, 3, 2, 3, 2, 1, 3, 3, 2, 3, 4, 4, 1, 4, 1, 2, 2, 5, 8, 5, 1, 1, 5, 3, 6, 6, 7, 6, 6, 4, 2, 4, 3, 6, 11, 6, 4, 3, 7, 6, 8, 3, 2, 10, 9, 6, 11, 2, 8, 9, 9, 5, 2, 5, 2, 3, 13, 5,...
[ "nonn" ]
A196607
[ 1, 6, 9, 0, 7, 7, 6, 4, 7, 3, 9, 8, 0, 1, 5, 1, 4, 9, 9, 9, 5, 2, 9, 5, 3, 6, 7, 6, 7, 2, 6, 2, 7, 8, 1, 0, 7, 4, 2, 1, 3, 4, 0, 7, 6, 9, 6, 9, 6, 5, 3, 7, 1, 7, 0, 5, 6, 2, 1, 0, 6, 7, 7, 0...
[ "nonn", "cons" ]
A327196
[ 0, 1, 4, 44, 2960 ]
[ "nonn", "more" ]
A151342
[ 1, 1, 4, 25, 196, 1764, 17424, 184041, 2044900, 23639044 ]
[ "dead" ]
A272259
[ 1, 8, 28, 21, 4, 32, 17, 19, 30, 6, 3, 13, 12, 24, 25, 11, 5, 31, 18, 7, 29, 20, 16, 9, 27, 22, 14, 2, 23, 26, 10, 15, 1, 8, 28, 21, 4, 32, 17, 19, 30, 6, 3, 13, 12, 24, 25, 11, 5, 20, 29, 7, 18, 31, 33, 16...
[ "nonn", "tabf" ]
A153417
[ 3, 5, 17, 23, 29, 47, 53, 59, 83, 89, 113, 137, 149, 167, 179, 197, 227, 257, 263, 269, 293, 317, 353, 359, 383, 419, 443, 449, 509, 557, 563, 587, 593, 599, 617, 647, 659, 677, 719, 743, 773, 797, 809, 839, 863, 953, 977, ...
[ "nonn", "easy" ]
A303031
[ 1, 1, 2, 7, 43, 282, 2708, 31175, 451701, 7731154, 154264825, 3515514725, 90381251065, 2594105950453, 82437061616923, 2880328250160638, 109987239823116860, 4566153786442575000, 205144850920195460000, 9.933105076082554e+21, 5.1643910425306237e+23 ]
[ "nonn" ]
A200920
[ 1, 3, 1, 5, 3, 25, 11, 5, 13, 13, 9, 7, 3, 9, 17, 7, 29, 25, 71, 49, 7, 9, 7, 9, 11, 39, 7, 25, 107, 3, 67, 59, 49, 89, 67, 29, 113, 5, 33, 7, 19, 53, 3, 5, 47, 121, 39, 7, 407, 25, 7, 215, 29, 23, 89, 5, ...
[ "nonn" ]
A144848
[ 7, 70, 720, 7102, 70780, 704537, 7026559, 70122424, 700184485, 6993568566, 69870544960, 698175242376 ]
[ "nonn" ]
A283713
[ 1, 11, 101, 1011, 10101, 101011, 1011101, 10110011, 101111101, 1011111011, 10111111101, 101111110011, 1011111111101, 10111111111011, 101111111111101, 1011111111110011, 10111111111111100, 101111111111111000, 1011111111111111000, 10111111111111110000 ]
[ "nonn", "easy" ]
A008268
[ 1, 4, 10, 23, 47, 83, 127, 174, 221, 276, 356, 428, 494, 603, 698, 781, 912, 1035, 1131, 1289, 1435, 1542, 1735, 1903, 2014, 2245, 2435, 2556, 2817, 3032, 3160, 3459, 3694, 3824, 4166, 4426, 4551, 4937, 5222, 5345, 5771, 6083, 6204,...
[ "nonn" ]
A339559
[ 0, 0, 1, 0, 2, 1, 4, 3, 7, 6, 14, 14, 23, 27, 41, 47, 70, 84, 114, 141, 190, 225, 303, 370, 475, 578, 738, 890, 1131, 1368, 1698, 2058, 2549, 3048, 3759, 4505, 5495, 6574, 7966, 9483, 11450, 13606, 16307, 19351, 23116, 27297, ...
[ "nonn" ]
A034998
[ 1, -8, 36, -128, 402, -1152, 3064, -7680, 18351, -42112, 93300, -200448, 419150, -855552, 1708632, -3345408, 6432867, -12166272, 22659976, -41609856, 75404754, -134973184, 238825344, -418023936, 724242492 ]
[ "sign" ]
A162879
[ 1, 42, 1722, 69741, 2824080, 114340800, 4629407580, 187434189600, 7588784431200, 307252630616400, 12439960566432000, 503665724648352000, 20392280251485913000, 825637071380896300000, 3.342816817108364e+22 ]
[ "nonn" ]
A083846
[ 5, 37, 677, 8837, 98597, 972197, 9985601, 99800101, 999444997, 9999200017, 99986234437, 999920001601, 9999799764517, 99999200001601, 999999202999697, 9999993200001156, 99999979750774750, 999999848000005800 ]
[ "nonn" ]
A341308
[ 1, 1, 1, 2, 1, 4, 1, 3, 2, 3, 1, 6, 1, 3, 5, 5, 1, 6, 1, 6, 4, 3, 1, 10, 3, 3, 4, 8, 1, 11, 1, 7, 4, 3, 5, 13, 1, 3, 4, 12, 1, 11, 1, 7, 10, 3, 1, 16, 4, 8, 4, 7, 1, 11, 6, 14, 4, 3, 1, 21, 1, 3...
[ "nonn" ]
A303014
[ 32, 360, 1797, 18513, 166978, 1298140, 11644063, 101648313, 858924912, 7482951714, 64819965354, 557823701105, 4829798750659, 41772314507935, 360842334409936, 3120493925974113, 26981104305825800, 233241052359265120 ]
[ "nonn" ]
A141638
[ 35, 43, 47, 55, 63, 67, 71, 75, 79 ]
[ "nonn", "more" ]
A121275
[ 4, 49, 1000, 28561, 1048576, 47045881, 2494357888, 208827064576, 14507145975869, 1125899906842624, 96549157373046880, 9065737908494995000, 925103102315013600000, 1.0193831974384141e+23 ]
[ "nonn", "less" ]
A153882
[ 1, 12, 113, 984, 8305, 69156, 572417, 4725168, 38957089, 321004860, 2644388561, 21781512072, 179402099473, 1477598319444, 12169714749665, 100231029093216, 825511191878977, 6798972400658028, 55996821859648050, 461193717895377700 ]
[ "nonn" ]
A047932
[ 0, 1, 3, 5, 7, 9, 12, 14, 16, 19, 21, 24, 26, 29, 31, 34, 36, 39, 42, 44, 47, 49, 52, 55, 57, 60, 63, 65, 68, 71, 73, 76, 79, 81, 84, 87, 90, 92, 95, 98, 100, 103, 106, 109, 111, 114, 117, 120, 122, 125, 128, 131, ...
[ "nonn" ]
A347711
[ 1, 1, 1, 1, 2, 2, 3, 4, 1, 4, 8, 3, 5, 6, 6, 12, 2, 5, 16, 7, 8, 10, 15, 12, 3, 15, 14, 16, 12, 8, 30, 16, 1, 18, 23, 18, 17, 18, 21, 28, 8, 11, 42, 19, 15, 32, 30, 24, 5, 23, 39, 30, 20, 20, 48, 36, 6, ...
[ "nonn" ]
A087266
[ 1, 2, 4, 2, 1, 2, 1, 2, 1, 4, 1, 4, 4, 4, 8, 2, 1, 8, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 4, 1, 1, 2, 1, 1, 1, 4, 4, 2, 4, 4, 1, 1, 4, 2, 1, 1, 2, 2, 1, 8, 1, 4, 16, 1, 2, 4, 2, 4, 2, 1, 1, 8, ...
[ "nonn" ]
A141801
[ 0, 4, 9, 9, 25, 20, 49, 26, 33, 52, 121, 52, 169, 108, 93, 75, 289, 100, 361, 144, 179, 258, 529, 168, 195, 358, 189, 254, 841, 254, 961, 258, 431, 612, 363, 302, 1369, 766, 595, 404, 1681, 494, 1849, 656, 511, 1124, 2209, ...
[ "nonn", "look" ]
A148773
[ 1, 1, 3, 8, 22, 80, 265, 872, 3320, 12105, 43408, 171113, 652773, 2457700, 9936359, 39053173, 151708678, 624013118, 2505730939, 9953885478, 41474123101, 169199138629, 683499828381, 2876966524245, 11882126225734, 48629680746168, 206372586046556, 860786961396088, ...
[ "nonn", "walk" ]
A319133
[ 1, 1, 1, 3, 3, 8, 5, 16, 7, 29, 12, 41, 14, 76, 16, 92, 28, 142, 30, 185, 32, 268, 48, 298, 50, 466, 59, 500, 80, 683, 82, 817, 84, 1072, 114, 1134, 134, 1583, 136, 1649, 170, 2176, 172, 2444, 174, 3032, 239, 3134, 241, ...
[ "nonn" ]
A173634
[ 2, 6, 8, 10, 12, 14, 16, 18, 20, 24, 26, 30, 32, 36, 38, 42, 44, 48, 50, 54, 56, 60, 62, 66, 68, 72, 74, 80, 86, 90, 92, 98, 102, 104, 110, 116, 120, 122, 128, 132, 140, 146, 150, 152, 158, 170, 176, 182, 188, 200, 2...
[ "nonn" ]
A060884
[ 1, 1, 11, 61, 205, 521, 1111, 2101, 3641, 5905, 9091, 13421, 19141, 26521, 35855, 47461, 61681, 78881, 99451, 123805, 152381, 185641, 224071, 268181, 318505, 375601, 440051, 512461, 593461, 683705, 783871, 894661, 1016801, 1151041, 1298155, 14589...
[ "nonn", "easy" ]
A103065
[ 1, 2, 3, 6, 8, 18, 19, 21, 32, 48, 65, 72, 99, 120, 201, 308, 717, 968, 1344, 2132, 3567, 3968, 8327, 10598, 12465, 15875, 18895, 28611, 29418, 83693, 114962, 145040, 256654, 262324, 295581 ]
[ "more", "nonn" ]
A039141
[ 0, 1, 2, 3, 6, 7, 8, 9, 10, 11, 12, 13, 16, 17, 18, 19, 20, 21, 22, 23, 26, 27, 28, 29, 30, 31, 32, 33, 36, 37, 38, 39, 45, 54, 60, 61, 62, 63, 66, 67, 68, 69, 70, 71, 72, 73, 76, 77, 78, 79, 80, 81, 82, 83, ...
[ "nonn", "base", "easy" ]
A197429
[ 16, 664, 10684, 410456, 11769456, 337295264, 9869104795, 292706228390, 8642552356445, 253114165333694, 7454560598765350, 220113696023686560, 6476539750313172000, 190545665782624060000, 5.61539090564368e+21 ]
[ "nonn" ]
A189034
[ 1, 5, 7, 8, 10, 11, 12, 15, 16, 17, 19, 23, 24, 25, 27, 30, 34, 36, 37, 38, 40, 43, 47, 48, 52, 54, 55, 57, 58, 59, 61, 64, 68, 69, 73, 75, 76, 77, 81, 83, 84, 86, 87, 88, 91, 92, 93, 95, 98, 102, 103, 107, 109, ...
[ "nonn" ]
A001970
[ 1, 1, 3, 6, 14, 27, 58, 111, 223, 424, 817, 1527, 2870, 5279, 9710, 17622, 31877, 57100, 101887, 180406, 318106, 557453, 972796, 1688797, 2920123, 5026410, 8619551, 14722230, 25057499, 42494975, 71832114, 121024876, 203286806, 340435588, 568496753,...
[ "nonn", "nice", "easy" ]
A338312
[ 4, 8, 10, 20, 40, 44, 104, 136, 152, 170, 190, 232, 260, 286, 442, 580, 740, 836, 890, 1364, 1378, 1990, 2204, 2260, 2584, 2626, 2684, 2834, 3016, 3160, 3230, 3926, 4220, 4636, 5662, 6290, 7208, 7384, 7540, 7676, 7964, 8294, 8420, ...
[ "nonn" ]
A188353
[ 17, 153, 497, 4201, 22229, 181449, 1264985, 10396729, 81850801, 684867741, 5680170701, 48268778269, 410276328441, 3525682027185, 30364372592101, 262996695840081, 2283098828435689, 19886474577091624, 173553193860930900 ]
[ "nonn" ]
A085511
[ 1, 0, -1, 6, 0, -96, 1856, -19866, 194701, -143840, -12421376, -2242688, 7161224400, -182262318208, 4419601227184, -105598371081024, 1963290383833664, -34552138617760370, 6240219707831587, 4597964531722783000, 255030441797039420000, -2.065692838532722e+22 ]
[ "sign" ]