id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A301988
[ 9, 30, 84, 108, 200, 264, 624, 1120, 1440, 1632, 3648, 7040, 8832, 12544, 16128, 20736, 22272, 33280, 47616, 76800, 113664, 157696, 174080, 202752, 251904, 528384, 778240, 1155072, 1490944, 1916928, 2605056, 3440640, 3768320, 3964928, 4423680, 57...
[ "nonn" ]
A207612
[ 1, 2, 4, 2, 7, 6, 4, 12, 14, 12, 8, 20, 30, 32, 24, 16, 33, 60, 76, 72, 48, 32, 54, 116, 168, 184, 160, 96, 64, 88, 218, 356, 440, 432, 352, 192, 128, 143, 402, 728, 1000, 1104, 992, 768, 384, 256, 232, 730, 1452, 2184...
[ "nonn", "tabf" ]
A210072
[ 2908, 183628, 11333893, 707627792, 44179487805, 2759914868891, 172422974616663, 10772379159246366, 673025014495254700, 42048651705088770000, 2.6270797178701915e+21, 1.6413248128526275e+23 ]
[ "nonn" ]
A363749
[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29...
[ "nonn" ]
A252724
[ 111, 102, 119, 135, 147, 191, 211, 251, 323, 375, 447, 599, 691, 851, 1139, 1335, 1647, 2231, 2611, 3251, 4403, 5175, 6447, 8759, 10291, 12851, 17459, 20535, 25647, 34871, 41011, 51251, 69683, 81975, 102447, 139319, 163891, 204851, 278579, ...
[ "nonn" ]
A354582
[ 0, 1, 1, 2, 1, 2, 2, 3, 1, 2, 2, 3, 2, 2, 3, 4, 1, 2, 2, 3, 2, 3, 2, 4, 2, 2, 3, 3, 3, 3, 4, 5, 1, 2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 2, 3, 5, 2, 2, 3, 3, 3, 3, 2, 4, 3, 3, 4, 3, 4, 4, 5, 6...
[ "nonn", "tabf" ]
A366511
[ 8, 16, 35, 80, 188, 451, 1100, 2720, 6803, 17176, 43700, 111875, 287828, 743416, 1926035, 5001920, 13014188, 33909571, 88452380, 230923280, 603268883, 1576786216, 4122895460, 10783511555, 28210861988, 73815519976, 193168589075, 505556029520, 1323231064028 ]
[ "nonn", "easy" ]
A222193
[ 1, 2, 4, 8, 16, 32, 48, 96, 144, 288, 576, 1152, 1216, 2432, 4736, 9472, 18688, 37376, 54272, 108544, 115712, 231424, 360448, 720896, 1384448, 2768896, 5537792, 6889472, 13778944, 27557888, 33177600, 66355200, 79495168, 158990336 ]
[ "nonn" ]
A014443
[ 1, -1, 1, -1, 1, -1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, -1, 1, -1, 1, -1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, ...
[ "sign" ]
A041769
[ 1, 8, 321, 2576, 103361, 829464, 33281921, 267084832, 10716675201, 86000486440, 3450736132801, 27691889548848, 1111126318086721, 8916702434242616, 357779223687791360, 2871150491936573400, 115203798901150730000, 924501541701142400000 ]
[ "nonn", "frac", "easy" ]
A008949
[ 1, 1, 2, 1, 3, 4, 1, 4, 7, 8, 1, 5, 11, 15, 16, 1, 6, 16, 26, 31, 32, 1, 7, 22, 42, 57, 63, 64, 1, 8, 29, 64, 99, 120, 127, 128, 1, 9, 37, 93, 163, 219, 247, 255, 256, 1, 10, 46, 130, 256, 382, 466, 502, 511, ...
[ "tabl", "nonn", "easy", "nice" ]
A366069
[ 1, 4, 8, 17, 28, 51, 78, 127, 189, 287, 411, 603, 840, 1187, 1628, 2242, 3015, 4076, 5399, 7173, 9390, 12292, 15904, 20585, 26364, 33748, 42856, 54348, 68446, 86101, 107641, 134383, 166912, 206961, 255479, 314872, 386491, 473632, 578389, ...
[ "nonn" ]
A311724
[ 1, 4, 8, 13, 16, 22, 25, 30, 34, 38, 41, 49, 51, 57, 61, 63, 72, 72, 78, 79, 91, 87, 100, 102, 102, 114, 110, 120, 119, 134, 126, 144, 143, 142, 161, 146, 162, 157, 180, 162, 187, 185, 178, 206, 182, 204, 193, 225, 198, ...
[ "nonn" ]
A196740
[ 1, 1, 20, 401, 35202, 7942712, 5423213789, 10714890351493, 61977591097741660, 1.0455347162342349e+21, 5.154388424786248e+25 ]
[ "nonn" ]
A111622
[ 1, 3, 5, 7, 11, 15, 17, 19, 21, 23, 27, 31, 33, 35, 39, 43, 53, 57, 59, 61, 63, 67, 79, 95, 97, 101, 115, 127, 129, 131, 135, 137, 139, 143 ]
[ "nonn" ]
A312724
[ 1, 4, 8, 15, 18, 24, 27, 32, 37, 41, 51, 46, 65, 50, 74, 59, 84, 75, 88, 90, 91, 97, 101, 106, 121, 106, 141, 104, 150, 112, 160, 134, 158, 156, 155, 163, 165, 171, 191, 165, 217, 158, 226, 166, 236, 193, 228, 221, 219, ...
[ "nonn" ]
A096159
[ 0, 0, 0, 1, 0, 1, 0, 1, 0, 1, 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0...
[ "nonn" ]
A282184
[ 1, 1, 1, 3, 5, 9, 17, 31, 19, 67, 13, 11, 13, 37, 61, 37, 27, 125, 27, 179, 331, 179, 53, 563, 53, 223, 839, 223, 257, 1319, 257, 47, 541, 169, 757, 163, 121, 347, 631, 157, 227, 29, 59, 9, 97, 11, 13, 121, 29, 163, ...
[ "nonn", "easy" ]
A359503
[ 1, 2, 3, 6, 7, 10, 11, 14, 18, 21, 22, 28, 29, 32, 36, 43, 44, 50, 51, 58, 62, 65, 66, 76, 82, 85, 89, 96, 97, 108, 109, 116, 120, 123, 129, 145, 146, 149, 153, 165, 166, 178, 179, 186, 195, 198, 199, 215, 223, 231, ...
[ "nonn" ]
A374625
[ 2, 1, 6, 5, 26, 25, 22, 21, 106, 105, 102, 101, 90, 89, 86, 85, 426, 425, 422, 421, 410, 409, 406, 405, 362, 361, 358, 357, 346, 345, 342, 341, 1706, 1705, 1702, 1701, 1690, 1689, 1686, 1685, 1642, 1641, 1638, 1637, 1626, 1625...
[ "nonn", "base", "easy" ]
A224644
[ 512, 1280, 3200, 8000, 22400, 62720, 175616, 514304, 1506176, 4410944, 13125248, 39055616, 116214272, 347690240, 1040220800, 3112136000, 9327881600, 27958088960, 83797669376, 251316410624, 753719509376, 2260469570624 ]
[ "nonn" ]
A087830
[ 1, 2, 3, 4, 5, 7, 10, 14, 15, 19, 20, 26, 27, 30, 31, 33, 34, 37, 41, 44, 47, 55, 62, 64, 66, 70, 74, 75, 84, 86, 87, 90, 93, 94, 96, 101, 111, 112, 116, 119, 122, 123, 129, 130, 140, 142, 145, 148, 157, 158, 163, ...
[ "nonn" ]
A331029
[ 1, 3, 9, 11, 21, 27, 33, 63, 81, 99, 121, 189, 209, 231, 243, 273, 297, 363, 441, 567, 627, 693, 729, 819, 891, 1089, 1323, 1331, 1701, 1881, 2079, 2187, 2299, 2457, 2541, 2673, 3003, 3267, 3969, 3993, 4389, 4641, 4851, 5103, 56...
[ "nonn", "base" ]
A189856
[ 1, 2, 6, 24, 120, 392, 1810, 10400, 72228, 589674, 3823906, 29420944, 266232984, 2711139976, 30669073348, 316482938974 ]
[ "nonn", "hard" ]
A146580
[ 1, 1, 1, 1, 1, 1, 1, 1, 17, 17, 57, 57, 457, 457, 7575, 7575, 206575, 206575, 7284891, 7284891, 429058537, 429058537, 43146239725, 43146239725 ]
[ "nonn" ]
A196371
[ 1, 2, 1, 3, 11, 4, 5, 31, 2, 6, 22, 7, 11, 61, 1, 8, 19, 3, 9, 19, 33, 101, 10, 62, 11, 29, 151, 4, 12, 44, 13, 41, 211, 14, 22, 122, 5, 15, 29, 55, 93, 281, 2, 11, 16, 38, 79, 17, 71, 361, 6, 18, 38, 66, 202...
[ "nonn" ]
A077359
[ 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97, 101, 103, 107, 109, 113, 127, 131, 137, 139, 149, 151, 157, 163, 167, 173, 179, 181, 191, 193, 197, 199, 223, 229, 233, 23...
[ "base", "nonn" ]
A118355
[ 3, 4, 8, 14, 28, 46, 90, 160, 308, 540, 1032, 1846, 3502, 6272, 11852, 21364, 40234, 72694, 136564, 247498, 464070, 842546, 1577280, 2868922, 5364030, 9769366, 18245976, 33272104, 62086194, 113326264, 211304042, 386039204, 719319094, 1315132086, 24...
[ "nonn" ]
A056235
[ 7, 2047, 402653183, 1.1805916207174113e+21, 2.3384026197294447e+50 ]
[ "nonn" ]
A164349
[ 0, 1, 0, 0, 1, 0, 1, 0, 0, 0, 1, 0, 0, 1, 0, 1, 0, 0, 1, 0, 0, 1, 0, 1, 0, 0, 0, 1, 0, 0, 1, 0, 1, 0, 1, 0, 0, 1, 0, 1, 0, 0, 0, 1, 0, 0, 1, 0, 1, 0, 0, 1, 0, 0, 1, 0, 1, 0, 0, 0, 1, 0, 0, 1...
[ "easy", "nonn" ]
A168300
[ 5, 5, 11, 11, 17, 17, 23, 23, 29, 29, 35, 35, 41, 41, 47, 47, 53, 53, 59, 59, 65, 65, 71, 71, 77, 77, 83, 83, 89, 89, 95, 95, 101, 101, 107, 107, 113, 113, 119, 119, 125, 125, 131, 131, 137, 137, 143, 143, 149, 149, ...
[ "nonn", "easy" ]
A227898
[ 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 3, 1, 1, 3, 3, 1, 4, 3, 2, 2, 3, 3, 3, 3, 3, 4, 4, 2, 2, 3, 3, 3, 2, 2, 5, 5, 2, 5, 4, 2, 4, 5, 2, 7, 5, 3, 4, 5, 3, 3, 4, 4, 3, 5, 4, 9, 9, 2, 5, 3, 4, 8, 6...
[ "nonn" ]
A335527
[ 4, 8, 60, 60, 188, 152, 380, 356, 644, 600, 980, 868, 1388, 1304, 1868, 1780, 2412, 2296, 3012, 2924, 3700, 3592, 4460, 4276, 5292, 5136, 6196, 6020, 7156, 6960, 8180, 8012, 9292, 9080, 10476, 10204, 11716, 11472, 13028, 12796, 14404, ...
[ "nonn" ]
A380282
[ 1, 1, 1, 1, 2, 1, 2, 1, 4, 5, 1, 1, 2, 6, 18, 7, 2, 1, 13, 50, 34, 10, 2, 25, 144, 146, 50, 2, 2, 48, 402, 574, 240, 18, 1, 2, 97, 1168, 2142, 1120, 122, 4, 1, 201, 3368, 7813, 4920, 738, 32, 3, 420, 9977, 28010,...
[ "nonn", "tabf" ]
A114225
[ 1, 1, 1, 1, 2, 1, 1, 3, 3, 1, 1, 4, 5, 4, 1, 1, 5, 7, 7, 5, 1, 1, 6, 9, 11, 9, 6, 1, 1, 7, 11, 17, 17, 11, 7, 1, 1, 8, 13, 26, 33, 26, 13, 8, 1, 1, 9, 15, 39, 61, 61, 39, 15, 9, 1, 1, 10, 17, 57, 10...
[ "easy", "nonn", "tabl" ]
A114172
[ 1, 1, 1, 1, 3, 1, 1, 5, 6, 1, 1, 7, 16, 9, 1, 1, 9, 31, 36, 12, 1, 1, 11, 51, 95, 66, 15, 1, 1, 13, 76, 199, 229, 106, 18, 1, 1, 15, 106, 361, 601, 467, 156, 21, 1, 1, 17, 141, 594, 1316, 1509, 844, 216, 24, ...
[ "nonn", "tabl" ]
A248638
[ 1, 3, 5, 6, 9, 11, 13, 16, 18, 21, 24, 27, 30, 33, 36, 39, 42, 45, 49, 52, 55, 58, 62, 65, 68, 72, 75, 79, 82, 85, 89, 92, 96, 99, 103, 106, 110, 113, 117, 120, 124, 127, 131, 135, 138, 142, 145, 149, 152, 156, 160, ...
[ "nonn", "easy" ]
A379295
[ 1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 34, 36, 43, 47, 73, 75, 77, 79, 81, 89, 95, 168, 170, 234, 242, 344, 346, 413, 423, 425, 648, 652, 660, 670, 1166, 1170, 1176, 1188, 1607, 1609, 1611, 2002, 2010, 2016, 2022, 2046, 2048, 21...
[ "nonn" ]
A230940
[ 0, 2, 2, 2, 6, 2, 8, 16, 16, 8, 8, 48, 34, 48, 8, 42, 146, 232, 232, 146, 42, 42, 438, 522, 1242, 522, 438, 42, 208, 1312, 3768, 6896, 6896, 3768, 1312, 208, 208, 3936, 8450, 37984, 28216, 37984, 8450, 3936, 208, 1042, 11810...
[ "nonn", "tabl" ]
A201397
[ 1, 2, 9, 5, 4, 5, 9, 6, 4, 6, 4, 1, 5, 4, 7, 8, 7, 6, 8, 6, 2, 9, 9, 1, 3, 2, 7, 0, 7, 1, 8, 6, 4, 1, 5, 8, 9, 7, 6, 7, 2, 7, 4, 8, 2, 7, 0, 6, 8, 7, 1, 3, 1, 6, 1, 6, 0, 5, 1, 8, 1, 4, 3, 0...
[ "nonn", "cons" ]
A033714
[ 1, 10, 190, 2890, 38890, 488890, 5888890, 68888890, 788888890, 8888888890, 98888888890, 1088888888890, 11888888888890, 128888888888890, 1388888888888890, 14888888888888890, 158888888888888900, 1688888888888888800, 17888888888888890000, 188888888888888900000 ]
[ "nonn", "base", "nice", "easy" ]
A068249
[ 1, 123933504, 607054532700510, 42295002762341130000, 2.2162160643502355e+23, 2.274999089554718e+26, 7.674955846851206e+28, 1.1559255724071428e+31, 9.451217922132346e+32, 4.788623815376455e+34 ]
[ "nonn" ]
A052452
[ 0, 0, 0, 1, 4, 30, 301, 4985, 142276, 7269487, 655015612, 103031645470, 28250197044039 ]
[ "nonn", "more" ]
A144787
[ 2, 7, 337, 38272417, 5.606059071683925e+22, 1.7618665445394097e+68 ]
[ "nonn" ]
A008329
[ 2, 3, 4, 4, 6, 4, 6, 6, 8, 8, 6, 4, 8, 6, 10, 8, 12, 4, 6, 12, 4, 10, 12, 12, 6, 8, 8, 12, 8, 8, 8, 12, 8, 12, 12, 8, 4, 6, 16, 8, 18, 8, 14, 4, 12, 12, 6, 12, 12, 8, 12, 20, 6, 18, 8, 16, 16, 10, 4, ...
[ "nonn" ]
A061485
[ 1, 10, 31, 988, 811, 19102, 131093, 1096792, 2420773, 95052434, 48911887, 4616289884, 5904218077, 36168951362, 534488973899, 269764710179504, 17133785963669, 34783298901958, 652516251742073, 2644314567590492 ]
[ "nonn", "frac", "easy" ]
A145447
[ 4, 4, 8, 8, 16, 16, 25, 25, 25, 36, 36, 49, 49, 49, 49, 64, 64, 64, 81, 81, 81, 81, 100, 100, 100, 121, 121, 121, 121, 121, 144, 144, 144, 144, 169, 169, 169, 169, 169, 196, 196, 196, 196, 196, 216, 216, 216, 225, 256, ...
[ "nonn" ]
A362074
[ 1, 1, 1, 3, 5, 6, 7, 7, 7, 7, 7, 9, 11, 11, 13, 14, 15, 16, 18, 18, 18, 19, 19, 21, 23, 24, 25, 26, 27, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 45, 46, 47, 48, 49, 50, ...
[ "nonn", "base" ]
A277911
[ 1, 3, 2, 5, 4, 7, 6, 10, 17, 8, 13, 26, 11, 15, 14, 18, 9, 16, 31, 21, 20, 40, 24, 23, 27, 12, 25, 30, 45, 28, 19, 54, 34, 33, 36, 35, 38, 37, 68, 22, 57, 115, 44, 43, 29, 47, 46, 74, 73, 51, 50, 87, 55, 32, ...
[ "nonn" ]
A273824
[ 1, 2, 3, 1, 4, 5, 2, 6, 3, 1, 7, 8, 4, 9, 5, 2, 10, 6, 3, 1, 11, 12, 7, 13, 8, 4, 14, 9, 5, 2, 15, 10, 6, 3, 1, 16, 17, 11, 18, 12, 7, 19, 13, 8, 4, 20, 14, 9, 5, 2, 21, 15, 10, 6, 3, 1, 22, 23, 16, ...
[ "nonn", "tabf" ]
A166924
[ 1, 9, 72, 576, 4608, 36864, 294912, 2359296, 18874368, 150994944, 1207959552, 9663676416, 77309411328, 618475290588, 4947802324416, 39582418593060, 316659348726336, 2533274789665536, 20266198316163070, 162129586520014850 ]
[ "nonn" ]
A226590
[ 0, 1, 0, 3, 1, 2, 0, 6, 2, 4, 1, 6, 1, 2, 1, 10, 3, 7, 2, 9, 2, 4, 1, 12, 3, 4, 3, 6, 1, 6, 0, 15, 5, 8, 4, 15, 3, 6, 3, 16, 3, 8, 2, 9, 5, 4, 1, 20, 3, 9, 5, 9, 2, 10, 3, 12, 4, 4, 1, 15, 1, 2,...
[ "base", "nonn" ]
A245314
[ 0, 3, 5, 8, 10, 13, 16, 19, 20, 22, 25, 28, 30, 32, 35, 38, 39, 42, 44, 47, 49, 52, 54, 57, 59, 60, 64, 66, 68, 71, 73, 76, 78, 81, 83, 85, 88, 91, 93, 95, 97, 100, 103, 105, 107, 110, 112, 115, 116, 119, 122, 124,...
[ "nonn" ]
A169894
[ 0, 1, 1, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 7, 7, 8, 8, 8, 8, 8, 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 10, 0, 0, 0, 0, 0, 0, 0, ...
[ "nonn", "base", "look", "tabl" ]
A040971
[ 11, 31, 41, 71, 101, 131, 151, 181, 191, 211, 241, 251, 281, 401, 421, 431, 491, 521, 541, 571, 631, 641, 661, 691, 701, 751, 811, 821, 881, 911, 941, 991, 1031, 1051, 1171, 1181, 1201, 1231, 1291, 1301, 1321 ]
[ "nonn", "easy" ]
A365967
[ 1, 1, 2, 3, 7, 10, 22, 32, 71, 103, 228, 331, 733, 1064, 2356, 3420, 7573, 10993, 24342, 35335, 78243, 113578, 251498, 365076, 808395, 1173471, 2598440, 3771911, 8352217, 12124128, 26846696, 38970824, 86293865, 125264689, 277376074, 402640763, ...
[ "nonn", "easy" ]
A060529
[ 1, 2, 3, 4, 12, 14, 15, 18, 19, 23, 27, 45, 68, 72, 99, 171, 346, 445, 517, 616, 688, 787, 1133, 1304, 3912, 7136, 8440, 9744, 11048, 12352, 18355, 19659, 20963, 22267, 26795, 28099, 29403, 30707, 40451, 41755, 69854, 71158, 72462, ...
[ "nonn" ]
A358422
[ 3, 23, 67, 1031, 19, 61463, 290659, 977591, 257853763, 62602607, 26744819683, 419897923439, 5254699, 31105379274647, 3898814282899, 42812012202143, 291516070141267, 1646700822288287, 31943436447743684, 50590939472511000, 151828450171141760, 104165257122907360, 15165857481...
[ "nonn" ]
A278346
[ 1, 2, 4, 11, 16, 47, 64, 175, 320, 703, 1280, 2815, 5120, 11007, 21504, 43775, 87040, 175103, 348160, 700415, 1392640, 2801663, 5570560, 11206655, 22282240, 44761087, 89391104, 178978815, 357826560, 715849727, 1431568384, 2863333375, 5726535680, 1145...
[ "nonn", "easy" ]
A023300
[ 2, 7, 17, 19, 23, 61, 101, 103, 409, 719, 857, 997, 1297, 1531, 1699, 2399, 3253, 3491, 4583, 4933, 5119, 5189, 5939, 6277, 6863, 7789, 8669, 9187, 9887, 10061, 10253, 10267, 11027, 11777, 12791, 12899, 13669, 17209, 17293, 17489, 17839...
[ "nonn" ]
A025631
[ 1, 7, 9, 49, 63, 81, 343, 441, 567, 729, 2401, 3087, 3969, 5103, 6561, 16807, 21609, 27783, 35721, 45927, 59049, 117649, 151263, 194481, 250047, 321489, 413343, 531441, 823543, 1058841, 1361367, 1750329, 2250423, 2893401, 3720087, 4782969 ]
[ "easy", "nonn" ]
A161227
[ 0, 1, 1, 2, 1, 3, 2, 4, 3, 6, 4, 7, 6, 9, 8, 11, 10, 14, 13, 17, 16, 20, 20, 24, 24, 28, 28, 34, 33, 39, 39, 45, 45, 52, 52, 59, 59, 68, 67, 76, 76, 86, 86, 96, 97, 108, 108, 121, 121, 134, 135, 149, 150, 164, ...
[ "nonn" ]
A141120
[ 1, 5, -100, 3250, -127500, 5456250, -241875000, 10733906250, -463469531250, 18897269531250, -699306093750000, 21927485449218750, -487263216796875000, 923644008789062500, 602420821142578100000, -3.817119741238403e+22 ]
[ "sign" ]
A105171
[ 1, 1, 0, 0, 9, 3, 2, 6, 6, 5, 1, 9, 3, 6, 2, 6, 6, 0, 7, 6, 5, 4, 9, 7, 5, 8, 8, 0, 2, 6, 1, 4, 0, 8, 3, 6, 0, 8, 4, 1, 1, 8, 4, 8, 2, 8, 0, 1, 9, 4, 6, 5, 1, 6, 1, 8, 1, 3, 6, 2, 0, 7, 4, 5...
[ "cons", "nonn" ]
A227764
[ 2, 3, 11, 12, 27, 36, 37, 51, 57, 87, 93, 102, 117, 123, 127, 135, 147, 157, 171, 177, 189, 197, 207, 219, 237, 249, 255, 261, 267, 291, 297, 303, 311, 312, 321, 327, 337, 345, 357, 363, 377, 387, 393, 397, 405, 417, 427, ...
[ "nonn" ]
A249503
[ 2, 123, 604, 2045, 5706, 26507, 76228, 190309, 426610, 879757, 1694154, 3254197, 5570468, 8901675, 13452950, 19622477, 27976024, 40253031, 56174354, 76717913, 102403416, 134456857, 173778354, 225248401, 287508526, 361941419, 450013456 ]
[ "nonn" ]
A216692
[ 2, 9, 189, 11730, 1561834, 370625430, 139733635588 ]
[ "nonn" ]
A386478
[ 1, 1, 1, 1, 2, 1, 1, 2, 4, 1, 1, 3, 7, 7, 1, 1, 5, 14, 16, 11, 1, 1, 8, 25, 34, 29, 16, 1, 1, 12, 40, 61, 63, 46, 22, 1, 1, 17, 59, 97, 113, 101, 67, 29, 1, 1, 23, 82, 142, 179, 181, 148, 92, 37, 1, 1, 30...
[ "nonn", "tabl", "easy" ]
A083397
[ 0, 2, 3, 5, 11, 3, 71, 67, 67, 127, 13, 509, 137, 37, 71471, 71471, 409993, 941351, 24419, 287093, 7147792819, 110647261, 80392811773, 4716679469, 4716679469, 323905128133, 8392290961, 551615338229, 34178276390953, 73669621631 ]
[ "nonn" ]
A088866
[ 97, 67, 193, 197, 163, 167, 293, 263, 397, 367, 491, 461, 593, 563, 907, 941, 947, 953, 991, 977, 983, 607, 641, 647, 653, 677, 683, 661, 1091, 1093, 1061, 1063, 1193, 1163, 1597, 1567, 1901, 1907, 1913, 1993, 1997, 1601, 1607, 16...
[ "nonn", "base" ]
A298319
[ 21, 203, 94, 1086, 6236, 11175, 111137, 644056, 3190955, 27151266, 182045025, 1280285105, 10257252946, 75063403838, 571967578126, 4496402709938, 34098604190424, 264284131602151, 2063855052770201, 15872082370425994 ]
[ "nonn" ]
A136937
[ 0, 6, 60, 76, 600, 760, 6000, 7306, 7600, 55076, 57756, 60000, 73060, 76000, 550760, 577560, 600000, 730600, 760000, 5507600, 5536756, 5775600, 6000000, 6055306, 7306000, 7600000, 7770306, 55076000, 55077766, 55367560, 57756000, 60000000, 60053066, 6...
[ "base", "nonn" ]
A173999
[ 0, 1, 3, 4, 5, 8, 9, 10, 12, 13, 14, 15, 17, 24, 25, 27, 29, 30, 31, 37, 38, 39, 40, 42, 43, 44, 45, 46, 47, 48, 49, 51, 55, 56, 58, 61, 62, 64, 66, 68, 79, 80, 86, 90, 91, 94, 95, 96, 99, 100, 103, 109, 110, 1...
[ "nonn", "base" ]
A254733
[ 2, 4, 6, 6, 10, 12, 14, 10, 12, 20, 22, 18, 26, 28, 30, 20, 34, 24, 38, 30, 42, 44, 46, 30, 30, 52, 30, 42, 58, 60, 62, 36, 66, 68, 70, 42, 74, 76, 78, 50, 82, 84, 86, 66, 60, 92, 94, 60, 56, 60, 102, 78, 106, ...
[ "nonn", "easy" ]
A225130
[ 1, -11, 36, -36, 36, -3786, 63786, -405036, 1215036, -4368786, 45022536, -380988786, 2242736286, -7681046286, 26949825036, -435049072536, 4543990507536, -25626723348786, 80068989783786, -100028016375036, 1579550678122536, -31186023693776290, 252408733196148800 ]
[ "sign", "easy" ]
A238358
[ 11288163762500624, 2927974178219879400, 394372363395179600000, 3.6751560969705186e+22, 2.6639730750061963e+24, 1.6009827368660367e+26, 8.303278159618016e+27, 3.819588511753706e+29, 1.5896435050196092e+31, 6.0756690775082234e+32 ]
[ "nonn" ]
A294929
[ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 3, 0, 0, 0, 0...
[ "nonn" ]
A165363
[ 6, 7, 10, 11, 12, 13, 14, 15, 16, 17, 20, 22, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 39, 40, 41, 44, 45, 46, 47, 48, 49, 51, 52, 53, 54, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, ...
[ "nonn", "uned" ]
A124753
[ 1, 1, 1, 1, 2, 3, 4, 9, 15, 22, 52, 91, 140, 340, 612, 969, 2394, 4389, 7084, 17710, 32890, 53820, 135720, 254475, 420732, 1068012, 2017356, 3362260, 8579560, 16301164, 27343888, 70068713, 133767543, 225568798, 580034052, 1111731933, 1882933364...
[ "nonn", "easy" ]
A386168
[ 2, 7, 29, 79, 89, 97, 227, 229, 277, 727, 787, 797, 827, 829, 877, 887, 929, 977, 997, 2287, 2297, 2729, 2777, 2789, 2797, 2879, 2887, 2897, 2927, 2999, 7229, 7297, 7727, 7789, 7829, 7877, 7879, 7927, 8287, 8297, 8779, 8887, 8929, ...
[ "nonn", "base", "easy" ]
A341967
[ 1, 6, 71, 1036, 16850, 292974, 5330003, 100198252, 1930974350, 37944361084, 757400034534, 15314501499440, 313016784476500, 6456745853475198, 134240505281434450, 2810148747648315400, 59181433880505400000, 1.2529973278566187e+21 ]
[ "nonn" ]
A348185
[ 406, 861, 39621, 2166321, 3924201, 11146281, 14804961, 19198306, 73951041, 83417986, 97951006, 209643526, 310415986, 522339681, 526225461, 583333246, 611153241, 801460666, 1601581906, 2520251506, 2690954841, 4455349606, 6681853401, 9895642221, 13878029901 ]
[ "nonn" ]
A068518
[ 1, 17, 163, 1229, 8131, 49637, 287323, 1602989, 8710291, 46423157, 243875083, 1267233149, 6530064451, 33433332677, 170320976443, 864288997709, 4372382138611, 22066261554197, 111150518391403, 559034856752669, 2808319611460771, 14094228176783716 ]
[ "nonn" ]
A048979
[ 2, 3, 7, 2837 ]
[ "more", "nonn" ]
A302337
[ 1, 4, 4, 5, 9, 12, 26, 52, 76, 32, 6, 16, 24, 61, 164, 446, 1100, 2102, 2436, 1874, 900, 226, 25, 40, 110, 332, 1070, 3504, 11144, 32172, 77874, 146680, 217470, 255156, 233786, 158652, 69544, 13732, 1072, 36, 60, 173, 556, 1942, ...
[ "nonn", "tabf" ]
A060994
[ 0, 10, 42, 43, 79, 88, 100, 102, 189, 198, 242, 250, 252, 263, 305, 262, 370, 306, 368 ]
[ "dead" ]
A254127
[ 1, 1, 7, 257, 50128, 50796983, 264719566561, 7063448084710944, 963204439792723000000, 6.707337453033009e+26, 2.384351527902618e+33, 4.3263422878945294e+40, 4.0066228568736634e+48 ]
[ "nonn" ]
A068887
[ 2, 3, 23, 29, 41, 43, 47, 61, 67, 83, 89, 2129, 2141, 2143, 2161, 2309, 2341, 2347, 2381, 2383, 2389, 2503, 2521, 2543, 2549, 2707, 2729, 2741, 2749, 2767, 2789, 2903, 2909, 2927, 2963, 2969, 4127, 4129, 4327, 4349 ]
[ "base", "nonn" ]
A108643
[ 1, 1, 0, 2, 0, 1, 4, 0, 4, 2, 8, 6, 8, 8, 8, 40, 4, 29, 40, 52, 56, 64, 116, 112, 200, 86, 296, 366, 360, 432, 652, 800, 840, 1470, 1116, 2048, 2356, 3052, 3524, 4220, 5648, 6964, 9660, 8688, 14128, 17024, 19432, 23972, ...
[ "nonn" ]
A090475
[ 2, 3, 5, 29, 2609, 2269829, 20608503836279, 3.397683442959575e+27, 4.293019002027607e+55, 1.1925301980557128e+111 ]
[ "nonn" ]
A005848
[ 1, 3, 4, 5, 7, 8, 9, 11, 12, 13, 15, 16, 17, 19, 20, 21, 24, 25, 27, 28, 32, 33, 35, 36, 40, 44, 45, 48, 60, 84 ]
[ "fini", "nonn", "full", "nice" ]
A121022
[ 2, 12, 20, 22, 24, 26, 28, 32, 42, 52, 62, 72, 82, 92, 102, 112, 120, 122, 124, 126, 128, 132, 142, 152, 162, 172, 182, 192, 200, 202, 204, 206, 208, 210, 212, 214, 216, 218, 220, 222, 224, 226, 228, 230, 232, 234, 236, 23...
[ "nonn", "base", "easy" ]
A361704
[ 1, 1, 1, 1, 1, 1, 361, 2521, 10081, 30241, 75601, 166321, 1580041, 16833961, 114594481, 569368801, 2273150881, 7723366561, 30024671041, 193227592321, 1460787267601, 9492136169041, 50996729017081, 232560967743721, 973251617544361, 4464217099881001 ]
[ "nonn", "easy" ]
A151933
[ 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0...
[ "nonn", "fini" ]
A238231
[ 376, 594, 846, 1178, 1222, 46498, 65198 ]
[ "nonn", "more" ]
A264971
[ 13, 3, 12, 3, 2, 2, 11, 1, 1, 4, 3, 3, 10, 1, 2, 6, 2, 5, 9, 1, 1, 4, 8, 3, 1, 1, 3, 2, 1, 2, 7, 7, 2, 1, 6, 6, 1, 1, 7, 5, 1, 2, 5, 1, 2, 4, 4, 3, 6, 1, 1, 2, 1, 3, 3, 1, 1, 2, 2, 5, 5, 4, 4,...
[ "nonn" ]
A363501
[ 1, 2, 3, 8, 5, 12, 7, 16, 27, 20, 11, 18, 13, 28, 45, 32, 17, 27, 19, 40, 63, 44, 23, 32, 125, 52, 81, 56, 29, 36, 31, 64, 99, 68, 175, 48, 37, 76, 117, 50, 41, 63, 43, 88, 75, 92, 47, 64, 343, 100, 153, 104, 53,...
[ "nonn" ]
A238674
[ 5, 31, 47, 41, 331, 523, 293, 277, 191, 197, 2389, 877, 811, 4111, 587, 2609, 5437, 1481, 6673, 1483, 12809, 1907, 5689, 13331, 3677, 25939, 4457, 3593, 162973, 6089, 38603, 33091, 26693, 16883, 65557, 19259, 5657, 49711, 23081, 25657, ...
[ "nonn" ]
A167144
[ 1, 4, 14, 70, 503, 4898, 60517, 899764, 15496561, 301137820, 6483583802, 152689979223, 3896718655702, 107010852239903, 3144913162405021, 98469727935174980, 3272516761148911600, 115063890523670840000 ]
[ "nonn" ]
A198081
[ 0, 2, 4, 6, 7, 9, 11, 13, 14, 16, 18, 20, 21, 23, 25, 26, 28, 30, 32, 33, 35, 37, 39, 40, 42, 44, 46, 47, 49, 51, 52, 54, 56, 58, 59, 61, 63, 65, 66, 68, 70, 72, 73, 75, 77, 78, 80, 82, 84, 85, 87, 89, 91, 92, ...
[ "nonn", "easy" ]