id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A029174
[ 1, 0, 1, 0, 2, 1, 2, 1, 3, 3, 4, 3, 5, 5, 7, 6, 8, 8, 11, 10, 13, 12, 16, 15, 19, 18, 22, 22, 26, 26, 30, 30, 35, 35, 40, 40, 46, 46, 52, 52, 59, 59, 66, 66, 74, 75, 82, 83, 91, 93, 101, 102, 111, 113, 123, ...
[ "nonn", "easy" ]
A136641
[ 1, 3, 4, 15, 16, 175, 64, 105, 100, 567, 1024, 1925, 4096, 3645, 784, 945, 65536, 13475, 262144, 6237, 1600, 295245, 4194304, 25025, 1296, 2657205, 4900, 40095, 268435456, 3776773, 1073741824, 10395, 25600, 215233605, 5184, 175175, 68719476736,...
[ "nonn" ]
A062137
[ 1, 4, -1, 20, -10, 1, 120, -90, 18, -1, 840, -840, 252, -28, 1, 6720, -8400, 3360, -560, 40, -1, 60480, -90720, 45360, -10080, 1080, -54, 1, 604800, -1058400, 635040, -176400, 25200, -1890, 70, -1, 6652800, -13305600, 9313920 ]
[ "sign", "easy", "tabl" ]
A206170
[ 15, 85, 641, 5257, 44585, 385465, 3375401, 29817817, 264999305, 2364834745, 21162573161, 189737549977, 1703284356425, 15303437762425, 137574211418921, 1237227532571737, 11129405572871944, 100130796836040510 ]
[ "nonn" ]
A012958
[ 1, 4, 104, 6694, 801048, 153856794, 43323364476, 16817632212294, 8608497639495696, 5618149971940668000, 4.553225539309053e+21, 4.4864474088382867e+24, 5.281810573883784e+27 ]
[ "nonn" ]
A184983
[ 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 6, 94, 10786, 3459386, 1470293676, 733351105934 ]
[ "nonn", "hard", "more" ]
A097931
[ 0, 1, 2, 3, 4, 5, 92, 135, 178, 185, 5854, 6148, 7703, 186621, 204856, 206620, 213970, 269957, 271721, 279071, 4252232, 160258808, 9689802280, 203509031168, 204191148800, 231773764784, 321015775216, 4102350269485, 12262956787888 ]
[ "base", "nonn" ]
A065104
[ 1, 2, 7, 13, 16, 424, 1693, 2116, 2206 ]
[ "nonn", "hard", "more" ]
A357254
[ 3, 9, 4, 27, 12, 5, 57, 36, 15, 6, 99, 76, 45, 18, 7, 135, 132, 95, 54, 21, 8, 219, 180, 165, 114, 63, 24, 9, 297, 292, 255, 198, 133, 72, 27, 10, 351, 348, 365, 306, 231, 152, 81, 30, 11, 489, 516, 495, 438, 357, 26...
[ "nonn", "tabl" ]
A389159
[ 1, 1, 2, 4, 8, 32, 64, 192, 576, 1536, 4352, 12288, 34816 ]
[ "nonn", "more" ]
A134800
[ 1, 12, 357, 11152230, 425677101135, 176231297385490620, 7.921002125515752e+26, 3.718456556046843e+34, 1.797721637260153e+44 ]
[ "easy", "nonn", "base", "less" ]
A318145
[ 6, 12, 14, 20, 24, 28, 30, 40, 48, 56, 60, 62, 70, 72, 80, 84, 96, 112, 120, 124, 126, 132, 140, 144, 168, 176, 192, 198, 208, 224, 240, 248, 252, 254, 260, 272, 286, 288, 320, 336, 340, 344, 384, 390, 396, 408, 430, 448, ...
[ "nonn" ]
A084254
[ 0, 0, 1, 8, 7, 2, 6, 8, 2, 4, 4, 9, 7, 6, 8, 5, 4, 6, 1, 1, 5, 6, 3, 8, 5, 7, 9, 4, 7, 9, 9, 6, 1, 3, 9, 8, 8, 6, 9, 1, 6, 2, 8, 9, 5, 6, 5, 2, 6, 1, 9, 5, 6, 3, 8, 4, 1, 3, 3, 1, 5, 7, 4, 5...
[ "cons", "nonn", "easy" ]
A235886
[ 40, 112, 352, 1216, 4480, 17152, 67072, 265216, 1054720, 4206592, 16801792, 67158016, 268533760, 1073938432, 4295360512, 17180655616, 68721049600, 274881052672, 1099517919232, 4398059094016, 17592211210240, 70368794509312 ]
[ "nonn" ]
A104996
[ 1, -3, -5, -193, -13397, -315629, -282682949, -71668311457, -24436072994261, -829687356768133, -5984214162917085000, -4.076572731127688e+21, -6.690502825554098e+23, -3.254803666762109e+27, -3.704926048371365e+30, -9.755811713503616e+32 ]
[ "sign", "frac" ]
A096393
[ 2, 3, 3, 3, 17, 3, 3, 7, 37, 3, 3, 43, 3, 5, 5, 3, 3, 23, 3, 7 ]
[ "hard", "more", "nonn" ]
A236117
[ 1538144, 126117020, 10125262296, 918481481856, 90225427419130, 9012213136881004, 902330917964333400, 90418925607422380000, 9.127817276899571e+21, 9.202528764029218e+23 ]
[ "nonn" ]
A134392
[ 1, 2, 1, 4, 3, 1, 8, 7, 4, 1, 15, 14, 10, 5, 1, 26, 25, 20, 13, 6, 1, 42, 41, 35, 26, 16, 7, 1, 64, 63, 56, 45, 32, 19, 8, 1, 93, 92, 84, 71, 55, 38, 22, 9, 1, 130, 129, 120, 105, 86, 65, 44, 25, 10, 1, 176...
[ "nonn", "tabl" ]
A229625
[ -1, 9, 441, 893025, 3406183992225, 4.791747428148155e+25, 9.330699003355696e+51 ]
[ "sign" ]
A118280
[ 0, 33066, 273118, 1274522, 3613278, 7250758, 12911636, 22655394, 25049533, 56922533, 81539010, 85105105, 106555658, 233296317, 286763923, 358322750 ]
[ "nonn" ]
A282402
[ 1, 1680, 1224720, 505659840, 129351117840, 21060890131680, 2160822606183360, 134717272385473920, 4957295423282269000, 119288258695393460000, 2.0514658612421565e+21, 2.6894077218337495e+22, 2.818035325245389e+23 ]
[ "sign" ]
A263361
[ 1, 0, 0, 0, 0, 0, 1, 2, 3, 4, 5, 6, 8, 10, 15, 20, 30, 40, 58, 76, 106, 140, 191, 252, 344, 454, 613, 814, 1091, 1442, 1926, 2538, 3368, 4432, 5852, 7678, 10107, 13222, 17337, 22636, 29582, 38518, 50195, 65198, 84712, 109784, ...
[ "nonn" ]
A308892
[ 5, 6, 7, 10, 11, 12, 13, 16, 22, 25, 32, 35, 45, 59, 62, 65, 67, 68, 69, 70, 72, 73, 76, 79, 81, 82, 83, 85, 86, 87, 88, 90, 91, 94, 97, 100, 101, 110, 112, 121, 123, 132, 134, 137, 140, 143, 162, 165, 188, 191, 197,...
[ "nonn" ]
A170837
[ 0, 1, 5, 21, 37, 53, 69, 85, 101, 117, 133, 149, 165, 181, 197, 213, 229, 245, 261, 277, 293, 309, 325, 341, 357, 373, 389, 405, 421, 437, 453, 469, 485, 501, 517, 533, 549, 565, 581, 597, 613, 629, 645, 661, 677, 693, 709, ...
[ "nonn", "easy" ]
A257184
[ 10285, 47283, 252288, 1661786, 10392884, 65770496, 429271992, 2786976155, 18041157691, 117100335307, 760568125579, 4936527355840, 32044309312991, 208026009487640, 1350418789751718, 8766267486325198, 56907414061910210 ]
[ "nonn" ]
A262371
[ 2, 3, 5, 7, 11, 14, 22, 26, 31, 32, 33, 36, 37, 44, 48, 53, 55, 62, 64, 67, 68, 70, 74, 82, 96, 100, 110, 111, 114, 127, 131, 141, 146, 163, 176, 179, 187, 200, 211, 216, 227, 228, 232, 235, 251, 260, 267, 268, 274, 28...
[ "nonn" ]
A059170
[ 2, 3, 5, 7, 23, 43, 67, 89, 101, 787, 32323, 78787, 1212121, 323232323, 989898989, 12121212121, 32323232323, 787878787878787900000, 7.878787878787879e+26, 1.212121212121212e+42 ]
[ "nonn", "base" ]
A278134
[ 1, 2, 5, 13, 34, 1, 89, 7, 1, 233, 34, 7, 1, 610, 141, 35, 7, 1, 1597, 534, 152, 36, 7, 1, 4181, 1905, 611, 163, 37, 7, 1, 10946, 6512, 2338, 689, 174, 38, 7, 1, 28657, 21557, 8641, 2787, 768, 185, 39, 7, 1, 75025, 695...
[ "nonn", "tabf" ]
A268343
[ 23, 37, 53, 67, 89, 97, 113, 157, 173, 211, 233, 277, 293, 307, 317, 359, 389, 409, 449, 457, 467, 479, 509, 577, 607, 631, 653, 691, 719, 751, 839, 853, 863, 877, 887, 919, 929, 1039, 1069, 1087, 1201, 1223, 1237, 1283, 1297, ...
[ "easy", "nonn" ]
A157761
[ 244754, 542508, 840262, 1138016, 1435770, 1733524, 2031278, 2329032, 2626786, 2924540, 3222294, 3520048, 3817802, 4115556, 4413310, 4711064, 5008818, 5306572, 5604326, 5902080, 6199834, 6497588, 6795342, 7093096, 7390850 ]
[ "nonn", "easy" ]
A344327
[ 1, 5, 5, 9, 5, 25, 5, 13, 9, 25, 5, 45, 5, 25, 25, 17, 5, 45, 5, 45, 25, 25, 5, 65, 9, 25, 13, 45, 5, 125, 5, 21, 25, 25, 25, 81, 5, 25, 25, 65, 5, 125, 5, 45, 45, 25, 5, 85, 9, 45, 25, 45, 5, 65, 25, 65, ...
[ "nonn", "mult" ]
A046126
[ 1, 3, -3, -15, 45, 315, -1575, -14175, 99225, 1091475, -9823275, -127702575, 1404728325, 21070924875, -273922023375, -4656674397375, 69850115960625, 1327152203251875, -22561587455281876, -473793336560919360 ]
[ "sign", "frac" ]
A291947
[ 4, 19, 708, 434084, 2241083208326, 215756808230894180, 2.0605664801049344e+39, 6.176152530148199e+50 ]
[ "nonn" ]
A199353
[ 1, 105, 7945, 705263, 66367192, 6518500460, 661357976129, 68780790321431, 7293552029780267, 785674669296654100 ]
[ "nonn" ]
A188970
[ 0, 1, 0, 1, 1, 0, 0, 1, 0, 1, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 0, 1, 0, 1, 0, 0, 1, 1, 1, 0, 1, 0, 0, 1, 1, 0, 1, 0, 0, 1, 0, 0, 1, 1, 1, 0, 0, 1, 1, 0, 1, 1, 0, 0, 1, 1, 1, 0, 0, 0, 0, 1, 1, 0...
[ "nonn" ]
A251056
[ 38, 414, 466, 514, 714, 844, 850, 1076, 1136, 1186, 1370, 1512, 1544, 1580, 1600, 1700, 1844, 1900, 1918, 2028, 2114, 2250, 2304, 2320, 2330, 2364, 2396, 2404, 2450, 2674, 2846, 2894, 3076, 3314, 3346, 3506, 3612, 3622, 3676, 3718, 3774...
[ "nonn" ]
A152089
[ 6, 11, 12, 14, 18, 19, 20, 22, 23, 25, 26, 30, 31, 35, 36, 37, 38, 39, 40, 41, 43, 44, 45, 46, 47, 48, 50, 51, 52, 53, 55, 56, 57, 58, 60, 61, 62, 63, 64, 65, 67, 69, 70, 71, 73, 74, 75, 76, 77, 78, 82, 83, 84, ...
[ "nonn" ]
A178608
[ 3, 53, 89, 283, 383, 1013, 1783, 3793, 6199, 12527, 17573, 23819, 25583, 31393, 40423, 42923, 81373, 111893, 132347, 155153, 161237, 187163, 208333, 391403, 500363, 597859, 658873, 674749, 944369, 1113773, 1302313, 1538569, 2607097 ]
[ "nonn", "easy" ]
A193212
[ 1, 2, -2, 3, 2, -3, 4, -2, 3, -4, 5, 2, 2, 4, -5, 6, -2, -3, -2, 5, -6, 7, 2, 3, 3, 2, 6, -7, 8, -2, 2, -4, 2, -2, 7, -8, 9, 2, -3, 4, 4, -3, 2, 8, -9, 10, -2, 3, -2, -5, -2, 3, -2, 9, -10, 11, 2, 2, ...
[ "sign", "tabl" ]
A183932
[ 1, 4, 15, 56, 157, 421, 1030, 2349, 5033, 10278, 20065, 37609, 68129, 119718, 204358, 340240, 553695, 882178, 1378928, 2117950, 3199767, 4762105, 6989141, 10123604, 14486392, 20495431, 28686822, 39751213, 54565631, 74232787, 100141371 ]
[ "nonn" ]
A130962
[ 0, 1, 3, 2, 7, 8, 4, 6, 5, 17, 18, 20, 21, 22, 11, 10, 14, 16, 19, 9, 13, 15, 12, 45, 46, 48, 49, 50, 54, 55, 57, 58, 59, 61, 62, 63, 64, 30, 33, 27, 29, 26, 39, 38, 42, 44, 47, 51, 53, 56, 60, 28, 23, 24, 35...
[ "nonn" ]
A072849
[ 3, 21, 33, 84, 104, 199, 689, 1848, 1923, 3435, 3795, 3985, 4126, 4742, 5968, 6413, 6495, 7649, 8927, 9906, 16885, 17677, 20474, 20996, 22924, 23923, 36902, 38733, 40347, 40654, 41956, 42601, 43047, 44482, 44920, 51608, 52305, 56706, 66032 ...
[ "easy", "nonn" ]
A222460
[ 343, 556549, 903055069, 1465295106499, 2377584520856755, 3857863258420747300, 6.259760185235727e+21, 1.015707269850313e+25, 1.6480843155302567e+28, 2.674177877546475e+31 ]
[ "nonn" ]
A140386
[ 5, 23, 29, 43, 107, 109, 137, 163, 197, 199, 227, 229, 317, 347, 359 ]
[ "dead" ]
A165315
[ 2, 3, 4, 9, 10, 11, 12, 27, 36, 37, 38, 39, 40, 41, 42, 81, 82, 83, 84, 85, 86, 87, 88, 89, 100, 101, 125, 126, 127, 128, 129, 243, 244, 245, 246, 256, 257, 258, 259, 260, 261, 262, 263, 264, 265, 266, 267, 268, 289, 2...
[ "nonn" ]
A060064
[ 4, 8, 14, 24, 32, 90, 114, 140, 182, 200, 212, 294, 318, 524, 888, 1070, 1130, 1328, 1638, 1670, 1952, 2180, 2478, 2972, 3138, 3272, 4298, 4832, 5352, 5592, 8468, 9552, 9974, 12854, 14108, 15684, 16142, 19334, 19610, 25472, 28230, 313...
[ "nonn" ]
A216836
[ 1, 10, 11, 13, 17, 20, 21, 27, 35, 39, 40, 41, 42, 43, 50, 54, 55, 57, 63, 80, 81, 82, 84, 86, 92, 93, 97, 100, 101, 105, 108, 110, 111, 112, 114, 116, 117, 122, 126, 129, 130, 131, 135, 142, 143, 147 ]
[ "nonn", "base", "easy" ]
A261421
[ 1, 1, 7, 25, 427, 1911, 18051, 87945, 3518515, 17943211, 185961113, 976288495, 20727407743, 111039591475, 1199227922235, 6520801221225, 570761912807235, 3139190488028595, 34696316039725724, 192564553799569900, 4291438629174301700, 23993043241870766000, 2691393546376378400...
[ "sign", "frac" ]
A154536
[ 3, 4, 5, 6, 7, 9, 11, 12, 14, 15, 16, 22, 25, 26, 29, 31, 33, 36, 39, 53, 59, 60, 63, 70, 72, 74, 80, 87, 94, 128, 141, 142, 145, 152, 169, 171, 173, 179, 193, 210, 227, 309, 339, 340, 343, 350, 367, 408, 410, 412 ]
[ "nonn" ]
A096892
[ 6, 15, 28, 45, 66, 91, 20, 153, 190, 35, 276, 325, 378, 435, 496, 77, 42, 703, 104, 861, 946, 63, 1128, 1225, 170, 1431, 88, 209, 1770, 1891, 72, 117, 2278, 299, 2556, 2701, 350, 99, 3160, 3321, 3486, 187, 464, 4005, 130, 527,...
[ "nonn" ]
A072875
[ 2, 3, 61, 193, 15121, 838561, 807905281, 19896463921, 3059220303001, 3931520917431241 ]
[ "hard", "nice", "nonn", "more" ]
A319451
[ 0, 3, 6, 12, 15, 18, 24, 27, 30, 36, 39, 42, 48, 51, 54, 60, 63, 66, 72, 75, 78, 84, 87, 90, 96, 99, 102, 108, 111, 114, 120, 123, 126, 132, 135, 138, 144, 147, 150, 156, 159, 162, 168, 171, 174, 180, 183, 186, 192, 19...
[ "nonn", "easy" ]
A116103
[ 58, 1.552909498221643e+45, 1.7234046860159032e+45, 2.153694542826971e+45, 2.872111611393409e+45, 3.420622776280099e+45, 3.6715149560821795e+45 ]
[ "nonn", "base" ]
A390353
[ 1, 1, 2, 1, 1, 3, 2, 2, 3, 1, 1, 4, 5, 2, 4, 10, 5, 4, 4, 1, 1, 5, 9, 7, 2, 7, 23, 22, 7, 12, 23, 9, 7, 5, 1, 1, 6, 14, 16, 9, 2, 11, 44, 61, 38, 9, 30, 80, 61, 16, 30, 44, 14, 11, 6, 1, 1, 7, 20, 3...
[ "nonn", "tabf", "new" ]
A119899
[ 6, 10, 14, 15, 21, 22, 24, 26, 33, 34, 35, 38, 39, 40, 46, 51, 54, 55, 56, 57, 58, 60, 62, 65, 69, 74, 77, 82, 84, 85, 86, 87, 88, 90, 91, 93, 94, 95, 96, 104, 106, 111, 115, 118, 119, 122, 123, 126, 129, 132, 133, ...
[ "nonn" ]
A251071
[ 3935721, 634161915, 44280784440, 1731036678270, 44184817939580, 813777827212550, 11583623256480548, 133881601767192820, 1303359284227317200, 10991187869604622000, 82068339562605580000 ]
[ "nonn" ]
A269795
[ 2, 0, 6, 2, 30, 24, 126, 28, 504, 480, 2046, 990, 8190, 8064, 32730, 4064, 131070, 130536, 524286, 261630, 2097018, 2095104, 8388606, 2096100, 33554400, 33546240, 134217216, 67100670, 536870910, 536837640, 2147483646, 134213632, 8589932538, 858980352...
[ "nonn" ]
A064992
[ 2, 1, 1, 1, 6, -4, 1, 1, 8, -6, 8, -6, 10, 0, -7, 1, 12, -10, 10, 2, 4, -12, 12, -10, 16, -14, 12, -10, 42, -40, 1, 15, 6, -6, 2, -12, 22, -4, -2, -12, 54, -52, 16, 0, 12, -24, 20, -18, 28, -6, -2, -16, 30, -12...
[ "sign" ]
A344569
[ 2, 1, 2, 1, 1, 0, 4, 2, 7, 8, 3, 4, 4, 2, 8, 2, 4, 9, 0, 1, 3, 3, 3, 3, 1, 9, 7, 9, 2, 7, 9, 6, 8, 5, 0, 2, 4, 2, 8, 1, 1, 4, 2, 9, 6, 3, 6, 4, 4, 5, 2, 0, 1, 9, 1, 4, 4, 7, 3, 7, 6, 1, 1, 3...
[ "nonn", "cons" ]
A159090
[ 1, 37, 891, 18041, 337085, 6076989, 108331202, 1937745128, 35104098525, 648090669839 ]
[ "nonn" ]
A125449
[ 1, 14, 166, 1814, 21646, 260634, 3150976, 38131968, 461600902, 5588325698, 67656232726, 819100333142, 9916703328088, 120059853232840, 1453544637963500, 17597823650746284, 213053933013850100 ]
[ "nonn", "base" ]
A042621
[ 1, 1, 28, 29, 1652, 1681, 47039, 48720, 2775359, 2824079, 79025492, 81849571, 4662601468, 4744451039, 132762779521, 137507230560, 7833167690881, 7970674921441, 223041390569788, 231012065491229, 13159717058078612, 13390729123569840, 374709403394464300 ]
[ "nonn", "frac", "easy" ]
A130965
[ 0, 1, 3, 2, 6, 7, 8, 4, 5, 16, 14, 15, 17, 18, 19, 22, 21, 9, 10, 20, 11, 12, 13, 42, 44, 47, 37, 38, 43, 41, 40, 45, 46, 39, 48, 49, 50, 60, 51, 52, 63, 62, 56, 64, 58, 23, 24, 59, 25, 26, 27, 53, 61, 57, 28...
[ "nonn" ]
A323728
[ 2, 5, 10, 8, 26, 13, 50, 20, 18, 29, 122, 25, 170, 53, 34, 32, 290, 45, 362, 41, 58, 125, 530, 52, 50, 173, 90, 65, 842, 61, 962, 80, 130, 293, 74, 72, 1370, 365, 178, 89, 1682, 85, 1850, 137, 106, 533, 2210, 100, 98, ...
[ "nonn" ]
A270381
[ 2, 4, 8, 76, 9076, 76367616, 8970505418837847, 1.0507287207922646e+32, 2.6036426776932684e+64 ]
[ "nonn", "frac", "easy" ]
A120542
[ 1, 4, 6, 16, 20, 48, 52, 123, 120, 292, 244, 658, 462, 1440, 761, 3111, 1066, 6696, 804, 14522, -1607, 31915, -11438, 71482, -42420, 163414, -133102, 381148, -382217, 906108, -1051033, 2186855, -2802064, 5347219, -7345761, 13193786 ]
[ "sign" ]
A029357
[ 1, 0, 0, 0, 1, 0, 1, 0, 1, 0, 2, 1, 2, 0, 2, 1, 3, 1, 3, 1, 4, 2, 5, 2, 5, 2, 6, 3, 7, 3, 8, 4, 9, 5, 10, 5, 11, 6, 12, 7, 14, 8, 15, 9, 17, 10, 18, 11, 20, 12, 22, 14, 24, 15, 26, 17, 28, 18, 30, 2...
[ "nonn" ]
A136646
[ 89, 619, 877, 1193, 1319, 1481, 1747, 2437, 2447, 2521, 2647, 3163, 3371, 3449, 3469, 5711, 6007, 6089, 6659, 7001, 7121 ]
[ "nonn", "uned" ]
A383818
[ 1, 1, 0, 1, 1, 0, 1, 4, 1, 0, 1, 9, 10, 1, 0, 1, 16, 45, 22, 1, 0, 1, 25, 136, 177, 46, 1, 0, 1, 36, 325, 856, 621, 94, 1, 0, 1, 49, 666, 3025, 4576, 2049, 190, 1, 0, 1, 64, 1225, 8646, 23125, 22216, 6525, 382, ...
[ "nonn", "tabl" ]
A339378
[ 0, 2, 3, 4, 5, 7, 7, 8, 9, 13, 11, 17, 13, 15, 14, 16, 17, 25, 19, 21, 16, 27, 23, 25, 25, 29, 27, 23, 29, 68, 31, 32, 38, 49, 32, 59, 37, 51, 40, 57, 41, 66, 43, 43, 52, 55, 47, 59, 49, 57, 44, 45, 53, 59, 3...
[ "nonn" ]
A181888
[ 0, 0, 9, 64, 259, 784, 1974, 4368, 8778, 16368, 28743, 48048, 77077, 119392, 179452, 262752, 375972, 527136, 725781, 983136, 1312311, 1728496, 2249170, 2894320, 3686670, 4651920, 5818995, 7220304, 8892009, 10874304, 13211704, 15953344, 19153288, 2287...
[ "nonn" ]
A348957
[ 1, 2, 2, 10, 18, 98, 210, 1194, 2786, 16258, 39906, 236938, 601458, 3615330, 9399858, 57024426, 150947010, 922283522, 2475603138, 15212318730, 41290579410, 254909413218, 698230131858, 4327273358250, 11943274468770, 74260741616514, 206279837823650, 12861994071325...
[ "nonn" ]
A113210
[ 1, 8, 9, 2, 7, 8, 9, 2, 6, 0, 7, 1, 4, 3, 7, 2, 3, 1, 1, 2, 9, 8, 5, 8, 1, 3, 4, 3, 0, 2, 8, 2, 8, 2, 5, 6, 2, 8, 9, 8, 7, 5, 6, 9, 2, 0, 3, 9, 5, 6, 4, 1, 2, 8, 3, 6, 1, 1, 9, 6, 4, 8, 3, 1...
[ "nonn", "cons", "easy" ]
A092226
[ 65, 139, 149, 213, 287, 298, 361, 435, 447, 509, 583, 596, 657, 731, 745, 805, 879, 894, 953, 1027, 1043, 1101, 1175, 1192, 1249, 1323, 1341, 1397, 1471, 1490, 1545, 1619, 1639, 1693, 1767, 1788, 1841, 1915, 1937, 1989, 2063, 2086, ...
[ "nonn" ]
A338991
[ 0, 0, 2, 6, 13, 24, 37, 56, 78, 106, 132, 178, 212, 258, 312, 376, 425, 508, 565, 662, 749, 836, 909, 1058, 1156, 1264, 1384, 1536, 1636, 1836, 1946, 2126, 2282, 2434, 2606, 2880, 3019, 3194, 3385, 3676, 3833, 4138, 4305, 4572, ...
[ "nonn", "easy" ]
A143984
[ 0, 3, -1, 6, 12, 95, 8643, 74666874, 5575141774264376, 3.108220580314771e+31, 9.661035175892293e+62 ]
[ "sign" ]
A313319
[ 1, 4, 9, 16, 18, 22, 27, 33, 38, 42, 48, 48, 56, 62, 68, 73, 69, 80, 78, 96, 89, 106, 92, 114, 107, 126, 118, 126, 127, 133, 144, 142, 156, 144, 164, 162, 176, 171, 173, 180, 182, 202, 189, 212, 186, 222, 209, 234, 218, ...
[ "nonn" ]
A152677
[ 1, 3, 7, 15, 13, 31, 39, 31, 63, 91, 57, 93, 127, 195, 121, 171, 217, 133, 255, 403, 363, 183, 399, 465, 403, 399, 511, 819, 307, 847, 549, 381, 855, 961, 741, 1209, 931, 1023, 553, 1651, 921, 781, 1815, 1281, 1143, 1093, 17...
[ "easy", "nonn" ]
A175725
[ 4, 5, 3, 4, 6, 4, 5, 6, 5, 8, 8, 10, 9, 10, 11, 10, 10, 12, 11, 14, 11, 17, 15, 16, 18, 16, 17, 18, 17, 20, 11, 17, 15, 16, 18, 16, 17, 18, 17, 20, 12, 18, 16, 17, 19, 17, 18, 19, 18, 21, 12, 18, 16, 17, 19, ...
[ "nonn", "word" ]
A155410
[ 1, 7, 19, 37, 94, 297, 1458, 9766, 53099, 308101, 2235851, 20215398, 229099105, 2888943253, 39401146662, 624852187290 ]
[ "nonn" ]
A164383
[ 6, 9, 15, 21, 27, 33, 35, 45, 51, 57, 63, 65, 75, 77, 87, 93, 105, 111, 117, 135, 141, 143, 153, 155, 161, 171, 177, 183, 185, 195, 201, 203, 215, 231, 237, 243, 245, 255, 261, 267, 273, 275, 285, 287, 297, 315, 321, 335, ...
[ "nonn" ]
A013725
[ 20, 8000, 3200000, 1280000000, 512000000000, 204800000000000, 81920000000000000, 32768000000000000000, 1.31072e+22, 5.24288e+24, 2.097152e+27, 8.388608e+29, 3.3554432e+32 ]
[ "nonn", "easy" ]
A164985
[ 1, 6, 27, 405, 1458, 5103, 59049, 196830, 649539, 6908733, 22320522, 71744535, 731794257, 2324522934, 7360989291, 73222472421, 230127770466, 721764371007, 7060738412025, 22029503845518, 68630377364883, 663426981193869 ]
[ "frac", "nonn" ]
A329488
[ 1, 1, 256, 625, 14641, 65536, 707281, 4100625, 33362176, 214358881, 1568239201, 10485760000, 73680216481, 500246412961, 3461445366016, 23639287100625, 162614549665681, 1113034787454976, 7639424429247601, 52333711181640620 ]
[ "nonn" ]
A302501
[ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 45, 67, 83, 456, 72, 34, 56, 12, 345, 61, 23, 450, 123, 4501, 234, 50, 1234, 501, 2345, 612, 3450, 12345, 672, 3456, 78, 94, 567, 89, 4567, 834, 5672, 34561, 23450, 123450, 123456, 723, 4561, ...
[ "nonn", "base" ]
A318968
[ 1, 1, 1, 10, 10, 635, 797, 118446, 124071, 43174194, 45404910, 25982930761, 26443958420, 23324558686914, 23640266984002, 29216576615057080, 29447535265299612, 48690644491136860000, 48980258924147880000, 1.0417633460766441e+23, 1.0463638854033069e+23, 2.7832307087278008e+26 ...
[ "nonn" ]
A370991
[ 1, 0, 0, 3, 6, 10, 735, 5691, 29428, 1122696, 18159165, 190810675, 5768268726, 143497346928, 2479363382587, 73013461310895, 2336253676913640, 58015822633914740, 1850758447642034400, 69357415099500400000, 2.2524684102470714e+21 ]
[ "nonn" ]
A304214
[ 2, 2, 4, 3, 6, 4, 14, 4, 18, 2, 7, 2, 24, 26, 45, 37, 9, 37, 11, 3, 57, 20, 49, 7, 58, 93, 60, 14, 68, 84, 19, 18, 54, 31, 97, 57, 83, 68, 48, 4, 51, 149, 51, 105, 176, 136, 110, 190, 202, 69, 8, 27, 143, 248, ...
[ "nonn" ]
A344591
[ 1, 2, 3, 5, 7, 8, 9, 11, 13, 17, 19, 23, 27, 29, 31, 32, 37, 40, 41, 42, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97, 101, 103, 107, 109, 113, 115, 127, 131, 137, 139, 149, 151, 157, 163, 167, 173, 179, 181, 191, ...
[ "nonn" ]
A006045
[ 1, 26, 272, 722, 5270, 5260, 37358, 18414, 56216, 95668, 487714, 99796, 1304262, 627046, 593398, 481982, 7044222, 931396, 11570384, 1602940, 4037650, 8694134, 40220524, 2069292, 15855230, 21686124, 13215872, 10948486, 129952894, 10451648 ]
[ "nonn" ]
A022570
[ 1, 5, 15, 40, 95, 206, 425, 835, 1575, 2880, 5121, 8885, 15095, 25165, 41240, 66562, 105945, 166480, 258560, 397235, 604162, 910325, 1359680, 2014235, 2961000, 4321283, 6263360, 9019555, 12908945, 18367805, 25990149, 36581200, 51228175, 71393555, 9...
[ "nonn" ]
A366767
[ 1, 0, 1, 0, 1, 2, 0, 1, 0, 2, 0, 1, 0, 2, 2, 0, 1, 0, 2, 4, 2, 0, 1, 0, 2, 12, 6, 1, 0, 1, 0, 2, 38, 22, 0, 1, 0, 1, 0, 2, 126, 88, 0, 2, 1, 0, 1, 0, 2, 432, 372, 0, 6, 2, 1, 0, 1, 0, 2, 1520, 162...
[ "nonn", "tabl" ]
A124750
[ 1, 1, 1, 1, 0, 0, 0, -1, 0, 0, -1, 1, 0, -1, 2, -1, -1, 3, -3, 0, 4, -6, 3, 4, -10, 9, 1, -14, 19, -8, -15, 33, -27, -7, 48, -60, 20, 55, -108, 80, 35, -163, 188, -45, -198, 351, -233, -153, 549, -584, 80, 702, -...
[ "easy", "sign" ]
A192133
[ 1, 1, 2, 0, 4, 6, -1, 1, 10, 12, -2, 16, 18, 22, 3, 0, 28, 30, -3, 36, 40, 42, 46, 5, 52, 58, 60, -4, 66, 70, 72, 78, -1, 82, 88, 96, 100, 102, 106, 108, 112, 9, 2, 126, -5, 130, 136, 138, 148, 150, 156, 162, 166...
[ "sign" ]
A096490
[ 60, 120, 168, 180, 240, 252, 300, 336, 360, 420, 480, 504, 540, 600, 660, 672, 720, 756, 780, 792, 840, 900, 924, 936, 960, 1008, 1020, 1080, 1140, 1176, 1200, 1260, 1320, 1344, 1380, 1440, 1500, 1512, 1560, 1584, 1620, 1680, 1740, ...
[ "nonn", "easy" ]
A008137
[ 1, 4, 9, 17, 28, 42, 60, 81, 105, 132, 162, 196, 233, 273, 316, 362, 412, 465, 521, 580, 642, 708, 777, 849, 924, 1002, 1084, 1169, 1257, 1348, 1442, 1540, 1641, 1745, 1852, 1962, 2076, 2193, 2313, 2436, 2562, 2692, 2825, 2961, ...
[ "nonn", "easy" ]
A260974
[ 91, 133, 239, 481, 925, 1873, 3683, 7321, 14439, 28529, 56363, 111523, 220633, 436539, 863261, 1707243, 3376067, 6677245, 13206405, 26120525, 51660959, 102173689, 202075167, 399659881, 790442205, 1563330291, 3091935925 ]
[ "nonn" ]
A259459
[ 1, 18, 360, 9000, 283500, 11113200, 533433600, 30862944000, 2121827400000, 171160743600000, 16020645600960000, 1722947613266880000, 211061082625192800000, 2.922384220964208e+22, 4.5422200462986546e+24, 7.876209560281868e+26 ]
[ "nonn" ]
A003533
[ 1, 31, 601, 1801, 18631, 55831, 1082401, 33554431 ]
[ "nonn", "fini", "full", "easy" ]
A254940
[ 1, 2, 4, 8, 16, 32, 58, 81, 104, 140, 169, 194, 246, 328, 466, 738, 1132, 1514, 1878, 2533, 3848, 5826, 8206, 10882, 13816, 16971, 20870, 26851, 37027, 54519, 82722, 124688, 186188, 278055, 408883, 576910, 784125, 1067954, 1506714, 217561...
[ "nonn" ]