id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A147144
[ 1, 1, 1, 1, 1, 1, 1, 1, 3, 3, 7, 7, 17, 17, 39, 39, 127, 127, 681, 681, 3913, 3913, 21369, 21369, 147701, 147701, 1344439, 1344439, 15252227 ]
[ "nonn" ]
A204760
[ 131613, 5791161, 60849871, 1905174177, 27008204541, 700833744055, 11569671578677, 271404487523701, 4861615217680091, 108057248974042700, 2023505634340357000, 43696744024407770000, 838817243881692200000 ]
[ "nonn" ]
A224843
[ 131, 64279, 64319, 64483, 64513, 64621, 10708553, 211689713, 1473469351, 14655469571, 16744452731, 20921000803, 1868659342061, 2075982751859, 2490551934503, 3112244742829 ]
[ "nonn", "base" ]
A124685
[ 1, -1, 8, 10, 6, 3, 7, 18, -1, 2, 10, 7, 12, 13, 4, 8, 8, 10, 4, 6, 15, 16, 3, 27, 10, 5, 8, -1, 2, 2, 3, 7, 6, 3, 9, 5, 3, 19, 9, 11, 21, 10, 5, 3, 4, 9, 5, 3, 35, 6, 5, 3, 25, 14, 21, 3, 18, 6, 4, ...
[ "base", "easy", "sign" ]
A128166
[ 1, 2, 3, 4, 6, 9, 12, 13, 26, 28, 45, 66, 174, 308, 350, 366, 417, 783, 804, 3774, 5714, 7998, 17628, 17940, 63447, 67620, 83028, 137868, 216717, 297486, 425708, 659316, 674166, 883500, 1203786, 3605052, 6778607, 9516098, 19964862, 253385...
[ "hard", "nonn" ]
A166074
[ 0, 1, 1, 3, 4, 2, 15, 9, 26, 11, 32, 0, 25, 52, 81, 23, 56, 91, 128, 23, 64, 107, 152, 199, 15, 66, 119, 174, 231, 290, 351, 37, 102, 169, 238, 309, 382, 457, 534, 3, 84, 167, 252, 339, 428, 519, 612, 707, 804, 903, ...
[ "easy", "nonn" ]
A292582
[ 1, 1, 1, 2, 1, 1, 1, 3, 2, 1, 1, 2, 1, 1, 1, 4, 1, 2, 1, 2, 1, 1, 1, 3, 2, 1, 3, 2, 1, 1, 1, 5, 1, 1, 1, 6, 1, 1, 1, 3, 1, 1, 1, 2, 2, 1, 1, 4, 2, 2, 1, 2, 1, 3, 1, 3, 1, 1, 1, 2, 1, 1, 2, 7...
[ "nonn" ]
A173080
[ 8, 24, 40, 56, 72, 88, 104, 120, 128, 136, 152, 168, 179, 184, 200, 216, 232, 248, 264, 280, 296, 312, 323, 328, 344, 358, 360, 376, 384, 389, 392, 398, 408, 424, 437, 440, 456, 459, 472, 488, 493, 504, 520, 536, 537, 552, 5...
[ "nonn" ]
A036339
[ 467, 941, 13681, 14461, 21787, 22171, 22369, 24049, 24151, 25457, 29333, 37397, 41221, 42467, 43481, 46511, 48023, 54133, 56681, 68699, 75883, 85081, 101341, 103511, 117443, 120193, 126199, 137363, 144323, 145133, 158791, 175853, 181891, 183797 ]
[ "nonn", "base" ]
A052033
[ 263, 269, 347, 397, 431, 461, 479, 499, 569, 599, 607, 677, 683, 719, 769, 797, 821, 929, 941, 1019, 1031, 1049, 1051, 1061, 1069, 1103, 1181, 1223, 1229, 1237, 1297, 1307, 1367, 1399, 1409, 1439, 1453, 1487, 1489, 1523, 1553, 1559, ...
[ "nonn", "base" ]
A002340
[ 5, 4, 8, 7, 6, 11, 8, 9, 14, 18, 13, 11, 17, 16, 12, 13, 14, 28, 19, 14, 18, 16, 27, 22, 31, 16, 17, 26, 19, 34, 24, 23, 22, 28, 37, 41, 27, 32, 21, 26, 22, 23, 31, 22, 44, 48, 23, 29, 39, 43, 24, 38, 51, 32, ...
[ "nonn" ]
A129419
[ 1, 4, 49, 1689, 187392, 46738368, 20446754006, 14021056991357, 14141140657400320, 20047531681346320000, 3.856729855022663e+22, 9.78618172596063e+25, 3.199144495617536e+29, 1.3209491505064126e+33, 6.773751604973857e+36 ]
[ "nonn" ]
A276480
[ 1, 6, 18, 36, 72, 120, 168, 288, 420, 360, 792, 720, 1512, 1260, 1440, 3240, 4032, 2880, 2520, 3960, 5544, 6720, 5040, 10920, 7560, 14400, 10080, 13860, 15840, 15120, 18480, 20160, 37440, 25200, 46800, 30240, 36960, 32760, 27720, 71280, ...
[ "nonn", "base" ]
A097443
[ 3, 13, 31, 43, 67, 71, 83, 89, 107, 151, 157, 163, 191, 197, 199, 227, 283, 293, 307, 311, 347, 359, 373, 401, 409, 431, 439, 443, 467, 479, 523, 557, 563, 569, 587, 599, 601, 631, 653, 677, 683, 719, 761, 787, 827, 839, 877...
[ "nonn" ]
A069894
[ 2, 10, 26, 50, 82, 122, 170, 226, 290, 362, 442, 530, 626, 730, 842, 962, 1090, 1226, 1370, 1522, 1682, 1850, 2026, 2210, 2402, 2602, 2810, 3026, 3250, 3482, 3722, 3970, 4226, 4490, 4762, 5042, 5330, 5626, 5930, 6242, 6562, 6890, 72...
[ "nonn", "easy" ]
A142262
[ 13, 271, 443, 701, 787, 1217, 1303, 1733, 2593, 2851, 3023, 3109, 3539, 3797, 4657, 5087, 5431, 5689, 5861, 7151, 7237, 7753, 8011, 8269, 8527, 8699, 9043, 9473, 9817, 10247, 10333, 11279, 12569, 13171, 13687, 13859, 14461, 14633, 14891, ...
[ "nonn", "easy" ]
A390486
[ 1, 1, 3, 12, 56, 279, 1461, 7934, 44284, 252500, 1464452, 8612607, 51241929, 307870618, 1865311344, 11383768925, 69915894616, 431811981838, 2680222536507, 16709982342541, 104596250143468, 657090360644485, 4141518159456841, 26181526281172320, 165967226609291170 ]
[ "nonn", "new" ]
A055096
[ 5, 10, 13, 17, 20, 25, 26, 29, 34, 41, 37, 40, 45, 52, 61, 50, 53, 58, 65, 74, 85, 65, 68, 73, 80, 89, 100, 113, 82, 85, 90, 97, 106, 117, 130, 145, 101, 104, 109, 116, 125, 136, 149, 164, 181, 122, 125, 130, 137, 146,...
[ "nonn", "tabl" ]
A235931
[ 22822704, 35871300604, 55608647673784, 86959285831972860, 135476886902905130000, 2.114353018132e+23, 3.2970938257275495e+26, 5.1434666516248724e+29 ]
[ "nonn" ]
A295335
[ 2, 2, 0, 0, 1, 0, 1, 0, 3, 2, 1, 0, 1, 0, 17, 16, 1, 0, 1, 0, 3, 2, 1, 0, 5, 4, 5, 4, 1, 0, 1, 0, 5, 4, 9, 8, 1, 0, 9, 8, 1, 0, 1, 0, 3, 2, 1, 0, 5, 4, 9, 8, 1, 0, 73, 72, 3, 2, 1, 0, 1, 0, 65...
[ "nonn", "base", "look" ]
A311508
[ 1, 4, 8, 12, 17, 22, 26, 30, 34, 39, 44, 48, 51, 55, 61, 66, 70, 72, 76, 83, 88, 92, 93, 97, 105, 110, 114, 114, 118, 127, 132, 136, 135, 139, 149, 154, 158, 156, 160, 171, 176, 180, 177, 181, 193, 198, 202, 198, 202, ...
[ "nonn" ]
A328589
[ 240, 270, 300, 330, 360, 390, 630, 660, 690, 720, 750, 780, 810, 1050, 1080, 1110, 1140, 1170, 1200, 1230, 1500, 1530, 1560, 1590, 1620, 1650, 1890, 1920, 1950, 1980, 2010, 2040, 2070, 2550, 2580, 2610, 2640, 2670, 2700, 2940, 2970, 3...
[ "nonn" ]
A012962
[ 0, 2, -1, 8, -30, 366, -2655, 41652, -514668, 9980586, -173007765, 4004890848, -89829444474, 2436388004358, -66690826525323, 2084372053480332, -67131989795427480, 2384198449214048000, -88073922412026790000 ]
[ "sign" ]
A177921
[ 1, 1, 2, 4, 12, 58 ]
[ "nonn", "more" ]
A215567
[ 3, 13, 20, 42, 44, 45, 56, 60, 86, 87, 112, 119, 121 ]
[ "nonn", "less" ]
A257704
[ 6, 1, 5, 7, 17, 7, 13, 2, 4, 6, 8, 6, 8, 8, 16, 18, 22, 18, 30, 8, 12, 14, 16, 14, 16, 3, 5, 3, 21, 5, 9, 7, 13, 7, 11, 9, 11, 7, 9, 7, 9, 9, 13, 9, 13, 9, 15, 17, 21, 17, 19, 19, 21, 23, 25, 23, 27, 19...
[ "nonn", "easy" ]
A083279
[ 1, 1, 2, 3, 2, 1, 1, 2, 2, 1, 1, 1, 1, 2, 2, 1, 1, 2, 1, 1, 1, 5, 2, 1, 1, 7, 1, 1, 5, 2, 2, 1, 1, 1, 2, 1, 1, 1, 1, 2, 1, 2, 4, 1, 2, 1, 6, 1, 1, 5, 2, 1, 2, 1, 1, 1, 2, 2, 1, 2, 4, 3, 2, 3...
[ "nonn", "easy" ]
A141282
[ 11, 47, 233, 11459317 ]
[ "fini", "full", "nonn" ]
A200310
[ 0, 1, 2, 3, 5, 8, 12, 18, 26, 37, 53, 76, 108, 154, 218, 309, 437, 620, 876, 1242, 1754, 2485, 3509, 4972, 7020, 9946, 14042, 19893, 28085, 39788, 56172, 79578, 112346, 159157, 224693, 318316, 449388, 636634, 898778, 1273269, 1797557, ...
[ "nonn", "easy" ]
A259198
[ 1, 1, 1, 2, 2, 3, 4, 4, 5, 6, 7, 8, 10, 9, 12, 14, 16, 16, 21, 19, 26, 26, 31, 30, 39, 34, 46, 43, 53, 48, 65, 56, 77, 66, 85, 77, 104, 84, 118, 99, 133, 112, 155, 123, 177, 143, 196, 162, 227, 174, 256, 200, 282...
[ "nonn", "easy" ]
A281609
[ 122, 9188, 95623, 2563481, 69506779, 1732267694, 44428349137, 1138837839480, 29102840547371, 744335104686091, 19034344218360000, 486715748229292200, 12445950255418792000, 318255588377585200000, 8.138127052120466e+21 ]
[ "nonn" ]
A123410
[ 1, 2, 4, 11, 32, 130, 592, 3275, 19546, 126842, 865872, 6301047, 49781998, 450653524 ]
[ "nonn", "more" ]
A200481
[ 3, 7, 3, 7, 5, 2, 2, 6, 6, 8, 3, 0, 3, 9, 4, 3, 9, 3, 0, 2, 4, 3, 6, 2, 4, 5, 4, 0, 8, 6, 3, 6, 0, 6, 4, 3, 2, 8, 4, 4, 8, 3, 5, 6, 7, 8, 4, 9, 8, 0, 8, 1, 4, 5, 1, 1, 4, 9, 7, 6, 1, 7, 2, 9...
[ "nonn", "cons" ]
A126710
[ 7, 12, 1, 14, 2, 13, 8, 11, 16, 3, 10, 5, 9, 6, 15, 4 ]
[ "fini", "full", "nonn", "tabf" ]
A260867
[ 35, 161, 55, 35, 115, 35, 115, 35, 77, 209, 473, 253, 55, 77, 35, 235, 247, 55, 35, 35, 899, 119, 1003, 415, 143, 35, 335, 95, 299, 497, 203, 575, 35, 247, 323, 95, 77, 437, 901, 35, 55, 473, 35, 1457, 77, 55, 517, 35, 2...
[ "nonn" ]
A273085
[ 3, 5, 5, 5, 23, 29, 37, 41, 67, 113, 113, 113, 197, 617, 881, 10193, 103867, 521497, 938071, 1106356357, 1546157677, 100343116693, 518914006417, 1145565031404704500, 1.3517891999935724e+23, 6.207124483717329e+77 ]
[ "nonn", "fini", "full" ]
A026371
[ 1, 2, 3, 5, 6, 8, 9, 11, 12, 13, 14, 16, 17, 19, 20, 21, 22, 24, 25, 27, 28, 29, 30, 32, 33, 35, 36, 38, 39, 41, 42, 43, 44, 46, 47, 49, 50, 51, 52, 54, 55, 57, 58, 60, 61, 63, 64, 65, 66, 68, 69, 71, 72, 73, ...
[ "nonn" ]
A252958
[ 1251, 385, 605, 1027, 1747, 3315, 6091, 11027, 21661, 41149, 76195, 151665, 291595, 549597, 1095917, 2131051, 4059427, 8119947, 15887899, 30599099, 61205869, 120548245, 233864947, 468315993, 925888219, 1808629749, 3620886461 ]
[ "nonn" ]
A097266
[ 0, 1, 0, 1, 2, 2, 1, 2, 2, 3, 4, 3, 2, 5, 3, 4, 7, 4, 4, 6, 5, 6, 6, 6, 7, 9, 6, 6, 11, 8, 7, 12, 5, 9, 12, 9, 9, 10, 12, 10, 14, 11, 7, 14, 11, 12, 16, 10, 12, 19, 12, 13, 16, 14, 13, 18, 14, 12, 18,...
[ "nonn" ]
A084598
[ 2, 3, 5, 29, 11, 7, 13, 37, 32222189, 131, 136013303998782200, 31, 197, 19, 157, 17, 8609, 1831129, 35977, 508326079288931, 487, 10253, 1390043, 18122659735201507000, 25319167, 9512386441, 85577, 1031, 3650460767, 107 ]
[ "nonn" ]
A103697
[ 0, 5, 10, 6, 5, 11, 10, 6, 6, 6, 5, 11, 11, 11, 10, 6, 6, 6, 6, 6, 6, 6, 5, 11, 11, 11, 11, 11, 11, 11, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, ...
[ "base", "nonn" ]
A042897
[ 1, 3, 10, 13, 23, 59, 82, 141, 505, 1656, 103177, 311187, 1036738, 1347925, 2384663, 6117251, 8501914, 14619165, 52359409, 171697392, 10697597713, 32264490531, 107491069306, 139755559837, 247246629143, 634248818123, 881495447266, 1515744265389, 5428728243433 ]
[ "nonn", "frac", "easy" ]
A189957
[ 64, 4632, 72744, 542353, 2514945, 9133420, 26586582, 68081570, 154928607, 325585559, 631690148, 1167609345, 2043508680, 3435508142, 5566095860, 8767568010, 13387924849, 20010820026, 29195103851, 41845814529, 58906853906 ]
[ "nonn" ]
A205085
[ 11, 151, 1551, 15551, 155551, 1555551, 15555551, 155555551, 1555555551, 15555555551, 155555555551, 1555555555551, 15555555555551, 155555555555551, 1555555555555551, 15555555555555552, 155555555555555550, 1555555555555555600, 15555555555555555000, 155555555555555540000 ]
[ "nonn", "base", "easy", "less" ]
A022629
[ 1, 1, 2, 5, 7, 15, 25, 43, 64, 120, 186, 288, 463, 695, 1105, 1728, 2525, 3741, 5775, 8244, 12447, 18302, 26424, 37827, 54729, 78330, 111184, 159538, 225624, 315415, 444708, 618666, 858165, 1199701, 1646076, 2288961, 3150951, 4303995, 58705...
[ "nonn" ]
A166363
[ 0, 2, 2, 1, 3, 1, 2, 3, 2, 2, 3, 2, 2, 4, 1, 2, 3, 3, 3, 3, 2, 2, 5, 2, 3, 4, 1, 3, 3, 3, 4, 3, 3, 3, 4, 3, 3, 4, 1, 3, 3, 5, 3, 4, 4, 3, 3, 3, 4, 3, 3, 4, 4, 4, 2, 3, 4, 3, 3, 4, 5, 3, 5, 4...
[ "nonn" ]
A221530
[ 1, 1, 2, 2, 2, 2, 3, 4, 2, 3, 5, 6, 4, 3, 2, 7, 10, 6, 6, 2, 4, 11, 14, 10, 9, 4, 4, 2, 15, 22, 14, 15, 6, 8, 2, 4, 22, 30, 22, 21, 10, 12, 4, 4, 3, 30, 44, 30, 33, 14, 20, 6, 8, 3, 4, 42, 60, 44, 45,...
[ "nonn", "tabl" ]
A191420
[ 11, 101, 1001, 1011, 10001, 10011, 10111, 12021, 12022, 100001, 100011, 100101, 100111, 101011, 101221, 101222, 102201, 102202, 102212, 102221, 103223, 103233, 110212, 112021, 112022, 120021, 120022, 120212, 120221, 120222, 121022, 121102, 122102, 12...
[ "nonn", "base" ]
A378982
[ 0, 0, 0, 0, 0, 2, 2, 0, 4, 0, 0, 16, 2, 3, 0, 0, 0, 35, 2, 20, 9, 2, 4, 74, 0, 0, 13, 42, 0, 32, 4, 0, 0, 2, 0, 133, 2, 1, 0, 98, 0, 68, 2, 3, 11, 4, 4, 280, 17, 6, 1, 5, 4, 254, 18, 176, 0, 2, 0, 1...
[ "nonn" ]
A357375
[ 1, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 1, 0, 1, 1, 0, 0, 1, 0, 1, 1, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, 0, 1, 1, 1, 2, 0, 1, 1, 1, 0, 0, 0, 1, 1, 1, 0, 1, 0, 1, 1, 1, 0, 1, 1, 1, 1, 1, 0, 2, 0, 1, 1, 0...
[ "nonn" ]
A152061
[ 0, 0, 2, 2, 4, 2, 10, 2, 16, 8, 34, 2, 76, 2, 130, 38, 256, 2, 568, 2, 1036, 134, 2050, 2, 4336, 32, 8194, 512, 16396, 2, 33814, 2, 65536, 2054, 131074, 158, 266176, 2, 524290, 8198, 1048816, 2, 2113462, 2, 4194316, 33272, 8...
[ "nonn" ]
A102517
[ 1, 1, -1, -2, 1, 3, -2, -5, 5, 10, -11, -21, 22, 43, -43, -86, 85, 171, -170, -341, 341, 682, -683, -1365, 1366, 2731, -2731, -5462, 5461, 10923, -10922, -21845, 21845, 43690, -43691, -87381, 87382, 174763, -174763, -349526, 349525, 6...
[ "easy", "sign" ]
A164650
[ 679, 10127, 20273, 672203, 971261, 1133639, 1247129, 1336231, 1646743, 1701089, 2369471, 2674969, 2722499, 2989909, 3160079, 3597659, 4545749, 6333503, 7127861, 9357101, 10574629, 20070061, 52928293, 67931137, 74731807, 79940069, 80704813, 93444911, 128155333 ...
[ "nonn" ]
A099258
[ 1, 3, 2, 4, 6, 7, 8, 9, 5, 10, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 11, 22, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 23, 46, 48, 49, 50, 51, 52, 53, 54, 55, 5...
[ "nonn" ]
A292719
[ 1, 1, 4, 14, 67, 223, 951, 3680, 16239, 61656, 260490, 1035820, 4451494, 17534372, 73518595, 295928531, 1253898892, 5015867442, 20920480946, 84742519783, 355861723649, 1434993799839, 5962065435072, 24234396539097, 101149561260620, 409761023233915 ]
[ "nonn" ]
A083623
[ 244453, 253209, 419997, 3517236, 3517237, 5168161, 5892331, 6381473, 7449552, 9325203, 9325204, 9824810, 10519242, 10519243, 12662227, 12687789, 13088126, 14714103, 15859192, 16767908, 18109837, 21826210, 22619752, 23198726 ]
[ "base", "nonn" ]
A208176
[ 1, 3, 4, 11, 25, 66, 169, 443, 1156, 3027, 7921, 20738, 54289, 142131, 372100, 974171, 2550409, 6677058, 17480761, 45765227, 119814916, 313679523, 821223649, 2149991426, 5628750625, 14736260451, 38580030724, 101003831723, 264431464441, 692290561602 ]
[ "nonn" ]
A285701
[ 0, 1, 1, 0, 1, 0, 2, 0, 0, 0, 1, 0, 1, 0, 0, 0, 1, 0, 3, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 2, 0, 0, 0, 0, 0, 2, 0, 0, 0, 1, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0...
[ "nonn" ]
A182533
[ 0, 1, 1, -1, 2, -1, -1, 1, 1, -1, -1, 0, 2, 0, -1, -1, -1, 2, 2, -1, -1, -1, -2, 1, 4, 1, -2, -1, -1, -3, -1, 5, 5, -1, -3, -1, -1, -4, -4, 4, 10, 4, -4, -4, -1, -1, -5, -8, 0, 14, 14, 0, -8, -5, -1, -1, ...
[ "sign", "tabl", "changed" ]
A387120
[ 1, 1, 2, 0, 2, 2, 3, 0, 2, 2, 2, 0, 4, 3, 4, 0, 2, 2, 4, 0, 6, 2, 3, 0, 2, 4, 0, 0, 4, 4, 2, 0, 4, 2, 6, 0, 6, 4, 8, 0, 2, 6, 4, 0, 4, 3, 4, 0, 6, 2, 4, 0, 5, 0, 4, 0, 8, 4, 2, 0, 6, 2, 6, 0...
[ "nonn", "mult", "changed" ]
A363084
[ 4, 16, 18, 25, 64, 72, 100, 162, 180, 256, 288, 289, 294, 400, 507, 625, 648, 676, 720, 722, 1024, 1152, 1176, 1210, 1369, 1458, 1600, 1620, 2178, 2205, 2500, 2548, 2592, 2646, 2704, 2880, 2888, 3150, 4096, 4225, 4500, 4563, 4608, ...
[ "nonn" ]
A099143
[ 0, 16, 3, 4, 5, 0, 7, 4, 9, 5, 11, 12, 13, 7, 5, 8, 17, 18, 19, 4, 7, 11, 23, 48, 5, 13, 9, 7, 16, 10, 31, 16, 11, 17, 5, 9, 37, 19, 9, 20, 41, 14, 43, 11, 15, 23, 47, 10192, 7, 10, 17, 13, 53, 18, 5, 7, ...
[ "nonn" ]
A057725
[ 1, 4, 16, 77, 351, 1747, 8745, 44724, 230765, 1203567, 6323074, 33444084, 177863517, 950557538, 5101540598 ]
[ "nonn", "nice", "more" ]
A087583
[ 2, 3, 5, 11, 7, 29, 37, 103, 59, 271, 19, 107, 349, 127, 359, 157, 419, 137, 409, 701, 277, 691, 257, 661, 197, 641, 167, 773, 97, 733, 239, 1087, 461, 1117, 431, 1097, 643, 1259, 613, 1451, 967, 149, 977, 281, 2393, 61, 919...
[ "base", "nonn", "easy" ]
A076831
[ 1, 1, 1, 1, 2, 1, 1, 3, 3, 1, 1, 4, 6, 4, 1, 1, 5, 10, 10, 5, 1, 1, 6, 16, 22, 16, 6, 1, 1, 7, 23, 43, 43, 23, 7, 1, 1, 8, 32, 77, 106, 77, 32, 8, 1, 1, 9, 43, 131, 240, 240, 131, 43, 9, 1, 1, 10, 56, ...
[ "nonn", "tabl", "nice" ]
A093912
[ 1, 2, 3, 4, 6, 10, 20, 40, 80, 160, 308, 628, 1256, 2488, 5000, 9940, 19928, 39864, 79660, 159380, 318724, 637496, 1274980, 2549924, 5099884, 10199748, 20399528, 40799020, 81598052, 163196124, 326392240, 652784444, 1305568896, 2611137796 ]
[ "nonn", "easy", "less" ]
A087232
[ 1, 1, 5, 1, 5, 5, 17, 1, 17, 5, 17, 5, 13, 17, 53, 1, 17, 17, 29, 5, 21, 17, 53, 5, 29, 13, 3077, 17, 29, 53, 3077, 1, 33, 17, 53, 17, 37, 29, 101, 5, 3077, 21, 65, 17, 45, 53, 3077, 5, 49, 29, 77, 13, 53, 3077...
[ "nonn" ]
A102819
[ 9, 9, 9, 9, 3, 3, 6, 7, 3, 1, 3, 3, 2, 0, 1, 6, 7, 4, 0, 2, 2, 4, 9, 5, 5, 3, 6, 8, 8, 2, 7, 8, 6, 4, 9, 5, 2, 6, 6, 5, 5, 8, 2, 5, 4, 4, 2, 5, 8, 8, 7, 9, 2, 1, 2, 8, 5, 7, 6, 8, 6, 6, 8, 0...
[ "cons", "nonn" ]
A268924
[ 0, 1, 4, 22, 22, 22, 508, 508, 2695, 2695, 2695, 2695, 356989, 888430, 4077076, 4077076, 18425983, 18425983, 147566146, 534986635, 534986635, 7508555437, 28429261843, 28429261843, 122572440670, 405001977151 ]
[ "nonn", "easy" ]
A244728
[ 0, 9, 72, 243, 576, 1125, 1944, 3087, 4608, 6561, 9000, 11979, 15552, 19773, 24696, 30375, 36864, 44217, 52488, 61731, 72000, 83349, 95832, 109503, 124416, 140625, 158184, 177147, 197568, 219501, 243000, 268119, 294912, 323433, 353736, 385875, ...
[ "nonn", "easy" ]
A209676
[ 1, 12, 54, 88, -99, -540, -418, 648, 594, -836, 1056, 4104, -209, -4104, -594, -4256, -6480, 4752, -298, -5016, 17226, 12100, -5346, 1296, -9063, 7128, 19494, -29160, -10032, 7668, -34738, -8712, -22572, -21812, 49248, 46872, 67562, -2508, ...
[ "sign" ]
A087690
[ 1, 3, 21, 35, 1085, 9765, 1240155, 21082635, 1539032355, 16929355905, 34654391537535, 150169029995985, 1230034524697113000, 17630494853991954000, 2.662204722952785e+21, 4.1051196827931945e+23 ]
[ "frac", "nonn" ]
A227835
[ 0, 0, 0, 0, 1, 0, 1, 2, 0, 0, 0, 0, 1, 0, 1, 3, 0, 0, 0, 0, 2, 0, 2, 3, 0, 0, 0, 0, 1, 0, 1, 2, 0, 0, 0, 0, 1, 0, 1, 3, 0, 0, 0, 0, 2, 0, 2, 3, 0, 0, 0, 0, 1, 0, 1, 2, 0, 0, 0, 0, 1, 0, 1, 4...
[ "nonn" ]
A228477
[ 2, 4, 14, 41, 127, 386, 1181, 3605, 11013, 33635, 102734, 313780, 958385, 2927208, 8940618, 27307464, 83405606, 254747013, 778077691, 2376494562, 7258563605, 22169941573, 67713990833, 206819875427, 631693101322, 1929389878184 ]
[ "nonn" ]
A049495
[ 7, 37, 163, 9157, 9277, 15667, 53593, 56893, 111577, 135193, 137383, 142543, 305407, 467527, 470647, 476023, 480043, 527377, 607093, 671353, 761377, 817147, 885943, 891643, 904663, 1080073, 1116637, 1140847, 1172803, 1233523 ]
[ "nonn" ]
A289552
[ 124659783, 125739864, 127359486, 127368495, 128367495, 128439567, 129357486, 129438567, 129654783, 129735864, 134658792, 135729864, 138429567, 138654792, 139428567, 139725864, 142596738, 142695837, 143586729, 145692837, 146583729, 146592738, 152487639, 152784936 ]
[ "nonn", "base", "fini", "full" ]
A043282
[ 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2...
[ "nonn", "base" ]
A384747
[ 1, 0, 1, 0, 1, 2, 0, 1, 5, 6, 0, 1, 11, 15, 16, 0, 1, 26, 39, 43, 44, 0, 1, 63, 110, 123, 127, 128, 0, 1, 153, 308, 358, 371, 375, 376, 0, 1, 376, 869, 1046, 1096, 1109, 1113, 1114, 0, 1, 931, 2499, 3098, 3278, 332...
[ "nonn", "tabl" ]
A311291
[ 1, 4, 8, 12, 16, 21, 26, 30, 34, 38, 42, 46, 51, 56, 58, 63, 68, 73, 78, 82, 86, 88, 93, 97, 103, 105, 110, 115, 120, 125, 129, 134, 135, 140, 143, 150, 151, 158, 162, 167, 172, 175, 182, 182, 188, 189, 197, 197, 205, ...
[ "nonn" ]
A325548
[ 1, 1, 2, 3, 5, 8, 10, 13, 19, 23, 29, 38, 46, 55, 69, 80, 96, 115, 132, 154, 183, 207, 238, 276, 314, 356, 405, 455, 513, 579, 647, 724, 809, 897, 998, 1107, 1225, 1350, 1486, 1639, 1805, 1973, 2166, 2374, 2586, 2824, 3084, ...
[ "nonn" ]
A163912
[ 1, 2, 6, 24, 36, 288, 432, 1728, 2592, 31104, 15552 ]
[ "nonn" ]
A026016
[ 1, 3, 10, 34, 117, 407, 1430, 5070, 18122, 65246, 236436, 861764, 3157325, 11622015, 42961470, 159419670, 593636670, 2217608250, 8308432140, 31212003420, 117544456770, 443690433654, 1678353186780, 6361322162444, 24155384502452, 91882005146652, 350065463232296 ]
[ "nonn", "easy" ]
A202584
[ 96, 260, 804, 2554, 8372, 27649, 91973, 306486, 1023025, 3416176, 11412046, 38126620, 127389228, 425644289, 1422231173, 4752212465, 15879019404, 53058142574, 177288642743, 592392993030, 1979424904812, 6614060706429 ]
[ "nonn" ]
A369218
[ 1, 1, 1, 1, 3, 3, 4, 4, 5, 12, 14, 16, 19, 21, 24, 27, 64, 72, 84, 94, 108, 120, 136, 150, 169, 377, 427, 480, 540, 603, 674, 748, 831, 918, 1014, 1115, 1226, 1342, 1469, 1602, 1747, 1898, 2062, 2233, 2418, 2611, 2818, 303...
[ "nonn" ]
A044801
[ 88, 188, 288, 388, 488, 588, 688, 788, 889, 988, 1088, 1188, 1288, 1388, 1488, 1588, 1688, 1788, 1889, 1988, 2088, 2188, 2288, 2388, 2488, 2588, 2688, 2788, 2889, 2988, 3088, 3188, 3288, 3388, 3488, 3588, 3688, 3788, 3889 ]
[ "nonn", "base" ]
A261928
[ 1, 3, 6, 8, 15, 18, 28, 28, 36, 45, 66, 48, 91, 84, 90, 96, 153, 108, 190, 120, 168, 198, 276, 168, 275, 273, 297, 224, 435, 270, 496, 368, 396, 459, 420, 288, 703, 570, 546, 420, 861, 504, 946, 528, 540, 828, 1128, 576, ...
[ "nonn", "mult" ]
A251008
[ 1866789, 1829373498, 1783834023550, 1742128826665123, 1701457658126732300, 1.661795248800209e+21, 1.6230662644125577e+24, 1.5852401812086361e+27, 1.5482957974727458e+30 ]
[ "nonn" ]
A230823
[ 1, 1, 2, 6, 20, 73, 281, 1124, 4627, 19474, 83421, 362528, 1594389, 7083078, 31738724, 143281473, 651048571, 2975243348, 13665866849, 63055369522, 292130900461, 1358415528683, 6337824891559, 29660089051015, 139193062791189, 654903798282528, 3088627236146085 ]
[ "nonn" ]
A058832
[ 0, 0, 0, 0, 0, 0, 0, 630, 28560, 1330560, 74314800, 5057098200, 413836259760, 40145915529720, 4558576721418720, 599227672837944200, 90306248160926400000, 1.5470047011889029e+22, 2.989635481745275e+24 ]
[ "nonn", "easy" ]
A002342
[ 5, 7, 9, 11, 12, 13, 16, 17, 17, 19, 19, 22, 21, 23, 24, 26, 27, 29, 27, 28, 29, 32, 31, 31, 33, 32, 34, 33, 37, 37, 37, 39, 41, 39, 41, 43, 41, 41, 42, 43, 44, 46, 43, 44, 47, 49, 46, 47, 47, 49, 48, 49, 53, 5...
[ "nonn" ]
A390327
[ 2, 7, 8, 9, 10, 11, 19, 20, 21, 22, 25, 27, 28, 29, 31, 33, 34, 37, 38, 42, 43, 44, 46, 47, 48, 49, 52, 56, 57, 59, 62, 65, 70, 71, 72, 73, 74, 76, 77, 78, 81, 82, 85, 86, 87, 88, 89, 90, 91, 92, 94, 97, 99, 10...
[ "nonn", "new" ]
A385144
[ 101, 13331, 1333331, 188888881, 74444444447, 1666666666661, 188888888888881, 16666666666666660, 1666666666666666800, 155555555555555540000, 7.5555555555555555e+22, -1, -1, 7.222222222222222e+28, 3.111111111111111e+30, 1.5555555555555555e+32 ]
[ "sign", "base" ]
A113493
[ 2, 3, 5, 7, 1, 1, 1, 0, 1, 1, 3, 1, 1, 5, 1, 1, 8, 1, 1, 9, 1, 3, 1, 3, 3, 5, 3, 3, 7, 3, 3, 8, 3, 7, 2, 7, 7, 5, 7, 7, 8, 7, 7, 9, 7, 9, 1, 9, 9, 2, 9, 1, 0, 3, 0, 1, 1, 0, 5, 0, 1, 1, 0, 6...
[ "base", "easy", "nonn" ]
A163482
[ 0, 1, 14, 15, 16, 19, 20, 21, 234, 235, 236, 239, 240, 241, 254, 255, 256, 259, 260, 261, 314, 315, 316, 319, 320, 321, 334, 335, 336, 339, 340, 341, 3754, 3755, 3756, 3759, 3760, 3761, 3774, 3775, 3776, 3779, 3780, 3781, 3834, ...
[ "nonn" ]
A370852
[ 0, 0, 1, 1, 2, 1, 2, 0, 1, 2, 3, 4, 1, 2, 4, 5, 1, 2, 5, 6, 1, 2, 5, 1, 2, 4, 5, 7, 8, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 1, 2, 4, 5, 6, 7, 9, 10, 1, 2, 5, 10, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11,...
[ "nonn", "tabf" ]
A108578
[ 0, 0, 0, 0, 8, 24, 32, 56, 80, 104, 136, 176, 208, 256, 304, 352, 408, 472, 528, 600, 672, 744, 824, 912, 992, 1088, 1184, 1280, 1384, 1496, 1600, 1720, 1840, 1960, 2088, 2224, 2352, 2496, 2640, 2784, 2936, 3096, 3248, 3416, 358...
[ "nonn" ]
A134689
[ 0, 1, 1, 3, 1, 6, 1, 7, 4, 8, 1, 1, 6, 1, 1, 0, 9, 1, 5, 1, 2, 1, 1, 2, 2, 1, 1, 1, 4, 1, 3, 6, 6, 1, 6, 1, 3, 2, 8, 1, 4, 2, 1, 3, 1, 1, 5, 2, 0, 1, 3, 5, 5, 1, 2, 2, 1, 7, 5, 0, 1, 5, 4, 1...
[ "base", "easy", "nonn" ]
A054742
[ 2, 41, 1952, 172043, 20511924, 3058135804, 545880769246, 113492835877474, 26936031159146324, 7186257876123323000, 2.1290164190918827e+21, 6.935269531866744e+23, 2.4637521320800532e+26, 9.47950090325932e+28, 3.927120763052992e+31, 1.7428450442901658e+34, 8.249301503003545e+36 ]
[ "nonn" ]
A104214
[ 1, 2, 3, 5, 6, 9, 11, 13, 14, 15, 16, 18, 19, 20, 24, 27, 29, 31, 32, 33, 35, 36, 37, 40, 43, 45, 48, 52, 54, 55, 56, 57, 58, 60, 62, 63, 64, 65, 69, 71, 74, 76, 77, 80, 82, 84, 85, 86, 87, 88, 91, 94, 97, 98, ...
[ "easy", "nonn", "base" ]
A298382
[ 1, 1, 1, 1, 5, 1, 1, 7, 7, 1, 1, 18, 6, 18, 1, 1, 31, 18, 18, 31, 1, 1, 65, 30, 47, 30, 65, 1, 1, 130, 87, 172, 172, 87, 130, 1, 1, 253, 200, 504, 852, 504, 200, 253, 1, 1, 519, 522, 1502, 3271, 3271, 1502, 522, ...
[ "nonn", "tabl" ]