id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A173420
[ 36, 120, 780, 1596, 1830, 10440, 12090, 20706, 22578, 23436, 34716, 75466, 101926, 107880, 115440, 154290, 191890, 207690, 231540, 261726, 271216, 310866, 313236, 319600, 384126, 408156, 512578, 558096, 653796, 768180, 824970, 936396, 1094460 ]
[ "nonn" ]
A081517
[ 1, 1, 2, 1, 2, 4, 1, 2, 3, 5, 1, 2, 3, 4, 7, 1, 2, 3, 4, 5, 8, 1, 2, 3, 4, 5, 6, 8, 1, 2, 3, 4, 5, 6, 7, 9, 1, 2, 3, 4, 5, 6, 7, 8, 11, 1, 2, 3, 4, 5, 6, 7, 8, 9, 14, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 19 ]
[ "nonn", "tabl" ]
A243780
[ 7, 5503, 8779, 14629, 15877, 21013, 23599, 51199, 61483, 70237, 78163, 79333, 80149, 96667, 113089, 113359, 133153, 140053, 149377, 150889, 184039, 198967, 228199, 251287, 255637, 295843, 301123, 303613, 356929, 382843, 385393, 393709, 420037, 457363, 458119 ]
[ "nonn", "easy" ]
A039028
[ 0, 1, 2, 4, 6, 7, 8, 10, 12, 13, 14, 16, 23, 24, 25, 26, 28, 33, 36, 37, 38, 40, 42, 43, 44, 46, 48, 49, 50, 52, 59, 60, 61, 62, 64, 69, 72, 73, 74, 76, 78, 79, 80, 82, 84, 85, 86, 88, 95, 96, 97, 98, 100, 105, 113, 119, 125, 137, 138, 139, 140, 142, 144, 145, 146, 148 ]
[ "nonn", "base", "easy" ]
A089695
[ 2, 3, 5, 7, 11, 23, 29, 41, 43, 47, 61, 67, 83, 89, 101, 227, 229, 281, 401, 443, 449, 467, 601, 607, 647, 661, 683, 809, 821, 863, 881, 4001, 4463, 4643, 6007, 6067, 6803, 8009 ]
[ "base", "nonn", "more" ]
A048768
[ 1, 2, 9, 12, 18, 40, 112, 125, 250, 352, 360, 675, 832, 1008, 1125, 1350, 1500, 2176, 2250, 2401, 3168, 3969, 4802, 4864, 7488, 7938, 11776, 14000, 19584, 21609, 28812, 29403, 29696, 43218, 43776, 44000, 58806, 63488, 75600, 96040, 104000, 105984, 123201, 126000 ]
[ "nonn", "eigen" ]
A316304
[ 1, 2, 2, 4, 4, 4, 8, 12, 12, 8, 16, 24, 20, 24, 16, 32, 64, 39, 39, 64, 32, 64, 184, 110, 114, 110, 184, 64, 128, 432, 245, 339, 339, 245, 432, 128, 256, 1088, 572, 1021, 1519, 1021, 572, 1088, 256, 512, 2944, 1384, 2929, 5120, 5120, 2929, 1384, 2944, 512, 1024, 7360 ]
[ "nonn", "tabl" ]
A256314
[ 0, 0, 1, 5, 13, 30, 57, 101, 164, 255, 377, 540, 748, 1014, 1342, 1747, 2233, 2818, 3507, 4319, 5260, 6351, 7599, 9027, 10642, 12470, 14518, 16814, 19366, 22204, 25337, 28796, 32591, 36756, 41301, 46262, 51649, 57501, 63829, 70673, 78045, 85987, 94512 ]
[ "nonn", "easy" ]
A288604
[ 0, 51, 1968, 26214, 195312, 1007769, 4035360, 13421772, 38742048, 99999999, 235794768, 515978034, 1060449936, 2066104677, 3844335936, 6871947672, 11858787648, 19835929035, 32268769776, 51199999998, 79428004656, 120726921777, 180115266144, 264180754020 ]
[ "nonn", "easy" ]
A043163
[ 14, 49, 78, 112, 142, 177, 206, 241, 270, 305, 334, 369, 392, 433, 462, 497, 526, 561, 590, 624, 654, 689, 718, 753, 782, 817, 846, 881, 896, 974, 1009, 1038, 1073, 1102, 1136, 1166, 1201, 1230, 1265, 1294, 1329, 1358, 1393 ]
[ "nonn", "base" ]
A322931
[ 3, 7, 5, 0, 7, 3, 0, 1, 7, 1, 7, 6, 4, 2, 3, 6, 7, 7, 7, 0, 3, 1, 2, 0, 1, 7, 2, 6, 1, 2, 5, 4, 1, 1, 1, 2, 3, 5, 5, 2, 3, 5, 4, 7, 3, 6, 0, 0, 3, 4, 7, 1, 3, 3, 6, 4, 6, 0, 0, 4, 4, 6, 0, 5, 6, 4, 1, 5, 5, 6, 0, 0, 0, 6, 2, 6, 1, 0, 7, 1, 6, 0, 0, 4, 6, 5, 0, 7, 0, 1, 3, 7, 3, 7, 0, 0, 2, 0, 6, 1 ]
[ "nonn", "base", "easy" ]
A237142
[ 256, 1500, 1500, 8414, 22960, 8414, 52484, 333446, 333446, 52484, 328768, 5961802, 9999802, 5961802, 328768, 2145192, 107652788, 436271890, 436271890, 107652788, 2145192, 14152560, 2051159992, 17759803582, 50384979024, 17759803582 ]
[ "nonn", "tabl" ]
A211233
[ 1, 2, 3, 1, 4, 10, 4, 1, 1, 7, 27, 13, -13, -27, -7, -1, 1, 12, 69, 16, -182, -376, -182, 16, 69, 12, 1, 1, 21, 176, -88, -1375, -3123, -1608, 1608, 3123, 1375, 88, -176, -21, -1, 1, 38, 456, -886, -8292, -20322, -6536, 35890, 65862, 35890, -6536, -20322, -8292, -886, 456, 38, 1 ]
[ "sign", "tabf" ]
A239202
[ 1, 1, 2, 2, 2, 2, 2, 4, 2, 2, 2, 2, 2, 10, 6, 2, 2, 2, 2, 8, 2, 2, 2, 12, 2, 22, 2, 2, 15, 2, 2, 4, 28, 2, 12, 36, 2, 2, 2, 2, 2, 2, 44, 48, 20, 2, 2, 18, 2, 2, 46, 6, 28, 2, 2, 2, 52, 22, 2, 2, 2, 58, 2, 2, 18, 80, 2, 2, 2, 2, 45, 2, 70, 28, 6, 48, 2, 2, 2 ]
[ "nonn" ]
A009266
[ 1, 0, 0, -2, 0, 16, 40, -272, -1792, 5696, 97536, -58112, -6692224, -14752256, 566971392, 3293370624, -57170149376, -629890867200, 6512209063936, 128178697854976, -759960372641792, -28999010130804736, 64032469498658820 ]
[ "sign", "easy" ]
A221294
[ 1, 351, 19996, 1686304, 143511784, 10344276279 ]
[ "nonn" ]
A366081
[ 1, 1, 1, 0, -5, -22, -68, -165, -285, -96, 1892, 10574, 38436, 107175, 217063, 165232, -1150565, -7780744, -31173680, -94537100, -212903852, -239418048, 788015576, 6734057510, 29396759220, 95418332383, 233697161887, 334222633632, -514863450175, -6299672869750 ]
[ "sign" ]
A053691
[ 1, 1, 2, 3, 5, 7, 11, 15, 22, 30, 42, 45, 66, 79, 102, 121, 154, 176, 220, 248, 297, 330, 430, 452, 552, 605, 720, 777, 935, 990, 1182, 1265, 1485, 1530, 1838, 1892, 2214, 2310, 2684, 2750, 3238, 3289, 3850, 3960, 4500, 4599, 5370, 5404, 6220, 6325, 7238 ]
[ "easy", "nice", "nonn" ]
A139762
[ 0, 1, 3, 6, 10, 6, 12, 10, 9, 18, 10, 3, 6, 10, 6, 12, 10, 9, 18, 19, 12, 6, 10, 6, 12, 10, 9, 18, 19, 21, 6, 10, 6, 12, 10, 9, 18, 19, 21, 15, 10, 6, 12, 10, 9, 18, 19, 21, 15, 19, 15, 12, 10, 9, 18, 19, 21, 15, 19, 24, 12, 10, 9, 18, 19, 21, 15, 19, 24, 21, 10, 9, 18, 19, 21, 15, 19 ]
[ "easy", "nonn" ]
A213980
[ 0, 0, 1, 0, 1, 0, 2, 2, 1, 0, 4, 0, 3, 2, 1, 0, 3, 0, 2, 2, 1, 0, 2, 3, 2, 1, 6, 0, 5, 0, 4, 6, 5, 4, 3, 0, 3, 2, 1, 0, 3, 0, 2, 1, 1, 0, 5, 6, 5, 5, 4, 0, 3, 2, 1, 2, 1, 0, 18, 0, 18, 17, 15, 16, 15, 0, 14, 14, 13, 0, 12, 0, 13, 12, 11, 11, 10, 0, 9, 9, 1, 0, 8, 9, 8, 7, 6, 0, 5, 5, 4, 4, 3, 2, 1, 0, 2, 1, 1, 0, 2, 0, 1, 1, 1, 0, 16, 0 ]
[ "nonn" ]
A380609
[ 2, 17, 31, 37, 67, 71, 73, 97, 103, 137, 149, 157, 181, 199, 211, 227, 241, 269, 283, 313, 337, 367, 379, 409, 487, 541, 563, 577, 587, 607, 617, 643, 661, 769, 787, 857, 877, 907, 929, 937, 977, 997, 1039, 1093, 1151, 1187, 1237, 1453, 1543, 1567, 1579, 1621 ]
[ "nonn" ]
A267622
[ 1, 101, 10111, 1011111, 101111111, 10111111111, 1011111111111, 101111111111111, 10111111111111112, 1011111111111111200, 101111111111111110000, 1.0111111111111111e+22, 1.0111111111111111e+24, 1.011111111111111e+26, 1.0111111111111112e+28 ]
[ "nonn", "easy" ]
A089657
[ 1, 2, 3, 4, 5, 6, 7, 9, 10, 10, 11, 13, 13, 15, 16, 17, 17, 20, 19, 20, 21, 22, 23, 25, 26, 27, 27, 28, 29, 30, 34, 35, 36, 36, 38, 39, 41, 42, 43, 44, 46, 46, 43, 49, 50, 51, 47, 49, 50, 50, 51, 52, 53, 55, 56, 57, 58, 58, 60, 61, 62, 63, 66, 66, 67, 67, 71, 72, 73, 74, 75, 76 ]
[ "nonn", "less" ]
A023163
[ 1, 9, 39, 111, 129, 159, 201, 249, 321, 471, 489, 519, 591, 681, 831, 849, 879, 921, 951, 1041, 1119, 1191, 1329, 1401, 1569, 1641, 1671, 1689, 1761, 1839, 1929, 1959, 2031, 2049, 2199, 2271, 2319, 2361, 2391, 2481, 2559, 2631, 2649, 2721, 2841, 2991, 3039 ]
[ "nonn" ]
A064068
[ 1, 64, 15872, 9493504, 10562158592, 18878667833344, 49488442978598910, 178867627497727200000, 8.525097234958116e+23, 5.180564635674868e+27, 3.909462210233974e+31, 3.5868673931056076e+35, 3.931974790759726e+39 ]
[ "nonn", "easy" ]
A007218
[ 1, 0, 0, 0, -2, 0, 28, -64, 39, 224, -884, 1368, 1350, -12272, 28752, -11944, -138873, 494184, -640856, -1111568, 7363194, -15488224, 1198848, 93506112, -293473869 ]
[ "sign" ]
A354013
[ 1, 1, 5, 32, 278, 3014, 39226, 595608, 10335888, 201785688, 4377151464, 104444584848, 2718748442208, 76668029954736, 2328328726108368, 75759574181169800, 2629417097250852400, 96963968323279830000, 3.786037089608099e+21, 1.560416175404238e+23 ]
[ "nonn" ]
A101698
[ 0, 1, 684817, 3371797 ]
[ "base", "fini", "full", "nonn" ]
A075830
[ 0, 1, 1, 5, 7, 47, 37, 319, 533, 1879, 1627, 20417, 18107, 263111, 237371, 52279, 95549, 1768477, 1632341, 33464927, 155685007, 166770367, 156188887, 3825136961, 3602044091, 19081066231, 18051406831, 57128792093, 7751493599 ]
[ "nonn" ]
A371782
[ 2, 3, 4, 5, 7, 8, 9, 11, 12, 13, 16, 17, 18, 19, 20, 23, 24, 25, 27, 28, 29, 30, 31, 32, 37, 40, 41, 42, 43, 44, 45, 47, 48, 49, 50, 52, 53, 54, 56, 59, 61, 63, 64, 66, 67, 68, 70, 71, 72, 73, 75, 76, 78, 79, 80, 81, 83, 88, 89, 92, 96, 97, 98, 99, 101, 102 ]
[ "nonn" ]
A236351
[ 2588, 27836, 266600, 2706844, 28890754, 301178180, 3117428148, 32329186968, 336865215998, 3500945078792, 36401829877770, 378300068653556, 3934037891653376, 40891368186374904, 425166200406048000 ]
[ "nonn" ]
A327365
[ 1, 0, 0, 1, 1, 0, 2, 2, 1, 0, 7, 6, 3, 1, 0, 23, 21, 10, 3, 1, 0, 122, 112, 56, 17, 4, 1, 0, 888, 853, 468, 136, 25, 4, 1, 0, 11302, 11117, 7123, 2388, 384, 39, 5, 1, 0, 262322, 261080, 194066, 80890, 14480, 1051, 59, 5, 1, 0, 11730500, 11716571, 9743542, 5114079, 1211735, 102630, 3211, 87, 6, 1, 0 ]
[ "nonn", "tabl" ]
A239289
[ 1, 2, 3, 4, 5, 6, 7, 9, 10, 11, 13, 14, 15, 16, 17, 19, 21, 22, 23, 24, 25, 26, 29, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 43, 46, 47, 48, 49, 51, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 64, 65, 67, 69, 71, 72, 73, 74, 77, 79, 80, 81, 82, 83, 84, 85, 86, 87 ]
[ "nonn", "easy" ]
A186495
[ 3, 4, 6, 7, 9, 10, 12, 13, 14, 15, 17, 18, 19, 21, 22, 23, 24, 25, 27, 28, 29, 30, 31, 33, 34, 35, 36, 37, 39, 40, 41, 42, 43, 44, 45, 47, 48, 49, 50, 51, 52, 54, 55, 56, 57, 58, 59, 60, 61, 63, 64, 65, 66, 67, 68, 69, 70, 72, 73, 74, 75, 76, 77, 78, 79, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 92, 93, 94, 95, 96, 97, 98, 99, 100, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 126, 127, 128, 129, 130, 131, 132, 133, 134, 135, 136, 138, 139, 140 ]
[ "nonn" ]
A356769
[ 2, 3, 1, 4, 6, 7, 5, 11, 9, 8, 10, 14, 13, 12, 19, 15, 17, 20, 16, 18, 24, 22, 21, 25, 28, 27, 30, 32, 38, 23, 31, 26, 36, 35, 34, 29, 47, 33, 40, 41, 54, 50, 43, 55, 39, 48, 37, 42, 45, 44, 53, 70, 46, 56, 74, 52, 62, 51, 66, 49, 58, 68, 59, 63, 67, 60, 57, 61, 72, 64, 65, 76, 69, 73, 75, 82, 85 ]
[ "nonn" ]
A263582
[ 1, 4, 18, 70, 292, 1212, 5028, 20832, 86360, 358008, 1484112, 6152272, 25503888, 105724928, 438276640, 1816850528, 7531649344, 31222019264, 129429085248, 536540828672, 2224199146368, 9220289638272, 38222180397312, 158447850514688 ]
[ "nonn" ]
A008213
[ 1, 4, 12, 24, 39, 64, 99, 130, 174, 217, 262, 321, 403, 464, 517, 621, 710, 779, 889, 972, 1079, 1218, 1345, 1428, 1555, 1718, 1862, 1990, 2149, 2271, 2464, 2658, 2802, 2961, 3140, 3352, 3602, 3754, 3921, 4134, 4407, 4620, 4834, 5044, 5242, 5576, 5876, 6031 ]
[ "nonn" ]
A218983
[ 3, 7, 16, 36, 81, 182, 407, 911, 2038, 4558, 10192, 22791, 50963, 113957, 254816, 569786, 1274081, 2848932, 6370406, 14244661, 31852031, 71223307, 159260157, 356116538, 796300787, 1780582691, 3981503937, 8902913456 ]
[ "nonn", "easy" ]
A304961
[ 1, 1, 2, 6, 12, 32, 72, 176, 384, 960, 2112, 4992, 11264, 26112, 58368, 136192, 301056, 688128, 1548288, 3489792, 7766016, 17596416, 38993920, 87293952, 194248704, 432537600, 957349888, 2132803584, 4699717632, 10406068224, 23001563136, 50683969536, 111434268672, 245819768832 ]
[ "nonn" ]
A377651
[ 0, 3, 57, 3013, 557565, 368668489, 913241498547, 8735037367292443 ]
[ "nonn", "more" ]
A093460
[ 1, 3, 17, 127, 1249, 15551, 235297, 4194303, 86093441, 1999999999, 51874849201, 1486016741375, 46596170244961, 1587429546508287, 58385852050781250, 2305843009213694000, 97322383751333740000, 4.371823119477393e+21 ]
[ "nonn" ]
A032443
[ 1, 3, 11, 42, 163, 638, 2510, 9908, 39203, 155382, 616666, 2449868, 9740686, 38754732, 154276028, 614429672, 2448023843, 9756737702, 38897306018, 155111585372, 618679078298, 2468152192772, 9848142504068, 39301087452632, 156861290196878, 626155256640188 ]
[ "nonn", "easy" ]
A373474
[ 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 1, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1 ]
[ "nonn" ]
A110659
[ 1, 0, 0, 2, 2, 1, 1, 3, 3, 2, 2, 4, 4, 3, 3, 5, 5, 4, 4, 6, 6, 5, 5, 7, 7, 6, 6, 8, 8, 7, 7, 9, 9, 8, 8, 10, 10, 9, 9, 11, 11, 10, 10, 12, 12, 11, 11, 13, 13, 12, 12, 14, 14, 13, 13, 15, 15, 14, 14, 16, 16, 15, 15, 17, 17, 16, 16, 18, 18, 17, 17, 19, 19, 18, 18, 20, 20, 19, 19, 21, 21, 20 ]
[ "nonn", "easy" ]
A034273
[ 0, 1, 19, 186, 1365, 8540, 48348, 255816, 1289739, 6273135, 29683225, 137447310, 625482585, 2806282440, 12443418600, 54633668400, 237871030860, 1028260382994, 4417404967206, 18874729444340, 80265980340370, 339907420551336, 1434074601137640, 6030288337651760 ]
[ "nonn" ]
A135879
[ 1, 1, 1, 2, 2, 1, 1, 6, 6, 4, 4, 2, 2, 1, 25, 25, 19, 19, 13, 13, 9, 5, 5, 3, 1, 1, 138, 138, 113, 113, 88, 88, 69, 50, 50, 37, 24, 24, 15, 10, 5, 5, 2, 1, 970, 970, 832, 832, 694, 694, 581, 468, 468, 380, 292, 292, 223, 173, 123, 123, 86, 62, 38, 38, 23, 13, 8, 3, 3, 1, 8390 ]
[ "nonn", "tabl" ]
A279029
[ 1, 2, 3, 4, 6, 8, 10, 12, 16, 18, 20, 24, 28, 30, 32, 36, 40, 42, 48, 54, 56, 60, 64, 66, 72, 78, 80, 84, 88, 90, 96, 100, 104, 108, 112, 120, 126, 128, 132, 136, 140, 144, 150, 156, 160, 162, 168, 176, 180, 192, 196, 198, 200, 204, 208, 210, 216, 220, 224, 228, 234, 240, 252, 256 ]
[ "nonn" ]
A077069
[ 1, 2, 4, 6, 1, 2, 8, 10, 1, 13, 2, 16, 1, 4, 13, 14, 1, 8, 4, 13, 1, 2, 4, 8, 1, 13, 16, 8, 1, 4, 2, 13, 1, 4, 8, 13, 1, 16, 4, 13, 1, 2, 4, 8, 1, 13, 16, 8, 1, 4, 2, 13, 1, 4, 8, 13, 1, 16, 4, 13, 1, 2, 4, 8, 1, 13, 16, 8, 1, 4, 2, 13, 1, 4, 8, 13, 1, 16, 4, 13, 1, 2, 4, 8, 1, 13, 16, 8, 1 ]
[ "nonn" ]
A036358
[ 0, 0, 0, 0, 0, 0, 1, 6, 37, 384 ]
[ "dead" ]
A246486
[ 2, 72, 6908, 87888, 1309038, 8628792, 53733080, 226048032, 881180090, 2758803240, 8099880852, 20739933552, 50471282918, 111972509208, 238609813808, 475857371712, 918806537970, 1688132007432, 3020848830380, 5201549128080 ]
[ "nonn" ]
A242206
[ 4, 18, 54, 138, 324, 724, 1568, 3326, 6954, 14390, 29552, 60344, 122684, 248586, 502366, 1013122, 2039804, 4101532, 8238520, 16534390, 33161554, 66473198, 133189224, 266771328, 534178324, 1069385154, 2140434438, 4283561466, 8571479604, 17150008420, 34311422672 ]
[ "nonn" ]
A072173
[ 239, 40955757, 3899056325995, 311805194956024600, 2.289937440996396e+22, 1.5987096469318958e+27, 1.0792351078646898e+32, 7.11311406880834e+36, 4.604826138876547e+41, 2.9397724727626927e+46 ]
[ "nonn", "easy" ]
A240173
[ 1, 2, 13, 43, 45, 51, 53, 55, 57, 63, 72, 77, 81, 84, 85, 89, 93, 103, 108, 117, 121, 129, 147, 149, 151, 163, 171, 173, 177, 183, 191, 213, 229, 231, 239, 241, 250, 259, 261, 263, 273, 283, 286, 291, 321, 331, 333, 344, 345, 351, 353, 361, 373, 381, 390, 399 ]
[ "nonn" ]
A161810
[ 1, 3, 7, 16, 33, 35, 47, 61 ]
[ "hard", "more", "nonn" ]
A048184
[ 3, 5, 7, 11, 17, 19, 23, 47, 59, 83, 107, 163, 167, 179, 227, 251, 257, 263, 347, 359, 383, 467, 479, 487, 503, 563, 587, 719, 839, 863, 887, 983, 1019, 1187, 1283, 1307, 1319, 1367, 1439, 1459, 1487, 1523, 1619, 1823, 1907, 2027, 2039, 2063, 2099, 2207 ]
[ "nonn", "easy" ]
A293606
[ 1, 1, 2, 3, 6, 9, 20, 33, 72, 139 ]
[ "nonn", "more" ]
A288994
[ 0, 2, 5, 18, 28, 20, 27, 70, 88, 54, 65, 154, 180, 104, 119, 270, 304, 170, 189, 418, 460, 252, 275, 598, 648, 350, 377, 810, 868, 464, 495, 1054, 1120, 594, 629, 1330, 1404, 740, 779, 1638, 1720, 902, 945, 1978, 2068, 1080, 1127, 2350, 2448, 1274, 1325 ]
[ "nonn", "easy" ]
A021364
[ 1, 15, 150, 1270, 9891, 73605, 533800, 3814140, 27018981, 190442395, 1338423450, 9390536610, 65820843271, 461096642385, 3229086629100, 22609268456680, 158287591978761, 1108104188689575, 7757094081310750, 54301119354502350, 380113683853001500, 2660819196147480000 ]
[ "nonn", "easy" ]
A379743
[ 3, 5, 7, 13, 11, 13, 29, 17, 19, 31, 23, 37, 53, 29, 31, 97, 103, 37, 191, 41, 43, 67, 47, 73, 101, 53, 109, 113, 59, 61, 311, 97, 67, 103, 71, 73, 149, 191, 79, 241, 83, 127, 173, 89, 181, 139, 283, 97, 197, 101, 103, 157, 107, 109, 331, 113, 229, 233, 709, 181, 367, 311, 127, 193, 131, 199, 269 ]
[ "nonn", "base", "look" ]
A093608
[ 1, 1, 2, 3, 6, 11, 20, 36, 64, 115, 205, 366, 652, 1162, 2070, 3687, 6567, 11696, 20832, 37103, 66084, 117701, 209635, 373375, 665008, 1184428, 2109552, 3757265, 6691962, 11918868, 21228368, 37809262, 67341034, 119939258, 213620504 ]
[ "nonn" ]
A143570
[ 1, 1, 1, 1, 1, 1, 1, 8, 57, 253, 841, 2311, 5545, 18019, 192193, 1936936, 13533521, 71607537, 308979217, 1195354525, 8070684721, 113661781381, 1368278263969, 12100291273456, 83294670263113, 474179436692501, 2787857745272601, 32561274444909212 ]
[ "nonn" ]
A300479
[ 6, 12, 15, 21, 24, 28, 36, 52, 68, 76, 265, 295, 2681, 8104, 21413, 174757, 1302197, 15536176, 20149241, 25873648, 237875719, 358334927 ]
[ "nonn", "more" ]
A182647
[ 0, 81, 625, 2401, 83521, 923521, 7890481, 88529281, 895745041, 9597924961, 96254442001, 988053892081, 9971252437441, 96840734511361, 999706081460641, 9892436613211440, 99510671548640640, 998005893107997600 ]
[ "nonn", "base" ]
A164182
[ 1, 2, 4, 8, 16, 30, 57, 108, 206, 391, 743, 1414, 2695, 5137, 9802, 18722, 35796, 68500, 131209, 251572, 482821, 927524, 1783553, 3432962, 6614125, 12755369, 24622325, 47574852, 92009827, 178112610, 345107051, 669277307, 1299108117, 2523857127 ]
[ "nonn" ]
A335707
[ 4, 1, 8, 7, 5, 7, 5, 7, 8, 7, 9, 4, 1, 2, 5, 4, 8, 0, 5, 3, 4, 4, 2, 1, 2, 5, 6, 0, 2, 8, 7, 0, 4, 6, 3, 6, 1, 3, 6, 5, 5, 5, 1, 6, 5, 4, 4, 9, 2, 8, 7, 0, 2, 9, 4, 0, 5, 2, 2, 0, 0, 2, 8, 0, 3, 7, 7, 5, 4, 9, 6, 9, 2, 5, 9, 5, 2, 8, 9, 0, 8, 0, 2, 1, 4, 8, 0, 6, 7, 2, 8, 4, 7, 7, 8, 5, 1, 1, 8, 8, 8, 5, 9, 4, 0, 0 ]
[ "nonn", "cons" ]
A118680
[ 2, 2, 7, 11, 2, 11, 29, 37, 23, 1, 67, 79, 23, 53, 11, 137, 1, 43, 191, 211, 29, 127, 277, 43, 163, 1, 379, 37, 109, 233, 71, 23, 281, 149, 631, 1, 1, 53, 71, 821, 431, 113, 947, 991, 1, 541, 1129, 107, 613, 1 ]
[ "frac", "nonn" ]
A299058
[ 1, 389, 4366, 175031, 5558665, 199153610, 7165136807, 259511787831, 9448796539484, 344252167371786, 12555436461782784, 458025124087582400, 16711604849240777000, 609784948993079800000, 2.2250906791148467e+22 ]
[ "nonn" ]
A283409
[ 4, 16, 61, 236, 912, 3525, 13624, 52656, 203513, 786568, 3040048, 11749641, 45411804, 175514464, 678355061, 2621810068, 10133171296, 39164225421, 151367869744, 585029621920, 2261111681777, 8739089177552, 33776164295072 ]
[ "nonn" ]
A236123
[ 256, 3096, 3096, 37584, 91128, 37584, 455808, 2692656, 2692656, 455808, 5529360, 79581792, 193943760, 79581792, 5529360, 67071552, 2351803200, 13978797888, 13978797888, 2351803200, 67071552, 813596592, 69503976144, 1007315423208 ]
[ "nonn", "tabl" ]
A049550
[ 2, 17, 23, 31, 41, 47, 71, 89, 113, 127, 137, 167, 191, 223, 233, 239, 257, 263, 281, 311, 353, 359, 383, 401, 431, 439, 449, 457, 479, 503, 521, 569, 593, 599, 601, 617, 641, 647, 719, 727, 743, 761, 809, 839, 857, 863, 881, 887, 911, 929, 953, 977, 983 ]
[ "nonn", "easy" ]
A349655
[ 1, 1, -4, 50, -981, 26632, -924526, 39114343, -1952373450, 112321286934, -7318049389727, 532602419776770, -42825957593127770, 3770431528821292500, -360734325565272750000, 3.7267364164988863e+22, -4.134667018838876e+24, 4.9030254521332184e+26 ]
[ "sign" ]
A362079
[ 1, 1, 0, 1, 1, 0, 1, 2, 3, 0, 1, 3, 7, 10, 0, 1, 4, 12, 28, 45, 0, 1, 5, 18, 55, 145, 251, 0, 1, 6, 25, 92, 315, 896, 1624, 0, 1, 7, 33, 140, 571, 2106, 6328, 11908, 0, 1, 8, 42, 200, 930, 4076, 15946, 50212, 97545, 0, 1, 9, 52, 273, 1410, 7026, 32718, 134730, 441489, 880660, 0 ]
[ "nonn", "tabl" ]
A166749
[ 0, 4, 18, 27, 49, 72, 81, 94, 499, 994, 4999, 9994, 49999, 99994, 499999, 999994, 4999999, 9999994, 49999999, 99999994, 499999999, 999999994, 4999999999, 9999999994, 49999999999, 99999999994, 499999999999, 999999999994, 4999999999999, 9999999999994, 49999999999999 ]
[ "nonn", "base", "easy" ]
A378891
[ 1, 3, 18, 142, 1278, 12429, 127223, 1350456, 14729628, 164079982, 1858781652, 21348787587, 248021665720, 2909439099543, 34413536180688, 409984974779725, 4915119769384221, 59252402698999210, 717819918438472200, 8734481867945979000, 106703642464149880000 ]
[ "nonn" ]
A225146
[ 0, 1, 0, 7, 2, 7, 1, 0, 8, 0, 1, 0, 2, 6, 5, 1, 2, 2, 4, 5, 4, 1, 5, 6, 3, 6, 8, 5, 4, 8, 3, 0, 9, 4, 2, 2, 0, 0, 2, 9, 0, 5, 9, 8, 4, 4, 8, 3, 6, 4, 3, 3, 6, 5, 5, 0, 7, 6, 8, 0, 0, 3, 3, 4, 8, 1, 3, 4, 0, 0, 9, 3, 4, 8, 0, 0, 4, 2, 7, 6, 0, 4, 9, 3, 6, 6, 3, 8, 6, 1, 0, 9, 0, 4, 5, 2, 8, 0, 7, 4, 7, 4, 8, 8, 8, 0, 6, 5, 2, 2, 7, 4, 9, 4, 7, 0, 4, 4, 5, 6, 6, 7, 2, 9, 4, 7, 0, 2, 7, 8, 9, 8 ]
[ "nonn", "cons" ]
A184931
[ 4, 9, 15, 19, 26, 31, 36, 41, 47, 53, 58, 63, 69, 73, 80, 85, 90, 95, 100, 107, 111, 117, 122, 127, 133, 139, 143, 149, 154, 161, 165, 171, 176, 181, 187, 193, 197, 202, 208, 214, 219, 224, 230, 234, 241, 246, 251, 256, 262, 268, 273, 278, 284, 288, 295, 300, 304, 310, 315, 322, 326, 332, 337, 342, 348, 354, 358, 364, 370, 376, 380, 386, 391, 397, 402, 407, 413, 417, 424, 429, 434, 439, 445, 450, 456, 461, 467, 471, 478, 483, 488, 493, 499, 504, 509, 515, 520, 525, 531, 537, 541, 547, 552, 558, 563, 569, 574, 579, 585, 591, 595, 601, 606, 611, 617, 622, 628, 632, 639, 644 ]
[ "nonn" ]
A198374
[ 7, 6, 3, 3, 9, 4, 5, 3, 8, 2, 1, 0, 1, 9, 2, 3, 3, 6, 9, 9, 2, 6, 7, 4, 5, 3, 6, 3, 8, 4, 8, 3, 7, 6, 1, 4, 5, 3, 2, 9, 5, 7, 8, 9, 0, 4, 0, 5, 6, 9, 1, 4, 2, 3, 6, 4, 4, 7, 5, 5, 0, 5, 1, 4, 0, 8, 4, 3, 9, 2, 8, 3, 4, 2, 2, 7, 0, 1, 7, 1, 3, 8, 3, 7, 8, 4, 3, 6, 3, 3, 4, 0, 4, 1, 3, 5, 6, 0, 6 ]
[ "nonn", "cons" ]
A091472
[ 2, 12, 320, 43892, 24266888 ]
[ "nonn", "more" ]
A256598
[ 1, 3, 5, 1, 5, 1, 7, 11, 17, 13, 5, 1, 9, 7, 11, 17, 13, 5, 1, 11, 17, 13, 5, 1, 13, 5, 1, 15, 23, 35, 53, 5, 1, 17, 13, 5, 1, 19, 29, 11, 17, 13, 5, 1, 21, 1, 23, 35, 53, 5, 1, 25, 19, 29, 11, 17, 13, 5, 1, 27, 41, 31, 47, 71, 107, 161, 121, 91, 137, 103, 155 ]
[ "nonn", "tabf" ]
A064078
[ 1, 3, 7, 5, 31, 1, 127, 17, 73, 11, 2047, 13, 8191, 43, 151, 257, 131071, 19, 524287, 41, 337, 683, 8388607, 241, 1082401, 2731, 262657, 3277, 536870911, 331, 2147483647, 65537, 599479, 43691, 8727391, 4033, 137438953471, 174763, 9588151, 61681 ]
[ "nonn" ]
A251552
[ -1, 0, -1, 0, 0, 0, 0, 0, -1, 1, 1, 1, 1, 1, -1, 3, 3, 3, 3, 3, 3, 2, 0, 0, 0, 0, 0, 0, 0, -1, 2, 2, 5, 5, 5, 5, 5, 5, 9, 9, 10, 10, 8, 8, 8, 8, 8, 11, 11, 11, 8, 8, 8, 8, 8, 12, 12, 12, 12, 12, 11, 8, 8, 8, 8, 8, 8, 8 ]
[ "sign" ]
A308481
[ 1, 1, 9, 82, 1300, 15626, 376761, 6161988, 176787117, 3769318700, 142364319625, 3152513804548, 154718778284148, 4340009120036086, 210971169748692000, 7281661100510001000, 435659030617933800000, 1.418110140856147e+22, 1.052864393300588e+24, 4.167389481542107e+25 ]
[ "nonn" ]
A165615
[ 31, 79, 97, 127, 191, 239, 241, 337, 401, 577, 751, 769, 881, 1039, 1151, 1231, 1297, 1471, 1487, 1567, 1759, 1777, 1871, 2207, 2591, 2687, 2719, 2767, 2897, 2927, 3041, 3391, 3919, 4159, 4271, 4481, 4591, 4721, 4817, 5231, 5279, 5407, 5711, 6257, 6337, 6449 ]
[ "nonn", "easy" ]
A068257
[ 1, 186, 923526, 122408393436, 433110977725751100, 4.090845749373291e+25, 1.0314612937541053e+35, 6.942544711174164e+45, 1.2474132532762777e+58 ]
[ "nonn" ]
A376199
[ 1, 2, 3, 4, 9, 5, 10, 6, 7, 8, 11, 12, 23, 13, 14, 15, 24, 16, 25, 17, 18, 19, 26, 20, 21, 22, 27, 28, 52, 29, 53, 30, 31, 32, 33, 34, 54, 35, 36, 37, 55, 38, 56, 39, 40, 41, 57, 42, 43, 44, 45, 46, 58, 47, 48, 49, 50, 51, 59, 60, 110, 61, 62, 63, 64, 65, 111, 66, 67, 68, 112, 69, 113, 70, 71, 72, 73, 74, 114, 75, 76, 77, 115, 78, 79 ]
[ "nonn" ]
A060777
[ 1, 2, 3, 6, 12, 30, 72, 210, 630, 1920, 6336, 22176, 78975, 295680, 1144000, 4576000, 18869760, 80061696, 348986880, 1560176640, 7148445696, 33530112000, 160813154304, 787718131200, 3938590656000, 20083261440000, 104351051284480, 552173794099200, 2973519499493376, 16286922357866496, 90680032493568000, 512971179263262700 ]
[ "nonn" ]
A267313
[ 0, -1, 1, 4, 0, 5, 11, 4, 12, 21, 11, 22, 34, 21, 35, 50, 34, 51, 69, 50, 70, 91, 69, 92, 116, 91, 117, 144, 116, 145, 175, 144, 176, 209, 175, 210, 246, 209, 247, 286, 246, 287, 329, 286, 330, 375, 329, 376, 424, 375, 425, 476, 424, 477, 531, 476, 532, 589, 531, 590, 650, 589, 651, 714, 650, 715 ]
[ "sign", "easy" ]
A082442
[ 10601, 16661, 70607, 73637, 76667, 79697, 94649, 98689, 1126211, 1186811, 1196911, 1276721, 1286821, 1456541, 1486841, 1496941, 1556551, 1616161, 1646461, 1826281, 1856581, 1876781, 1936391, 1976791, 3016103, 3026203 ]
[ "nonn", "base" ]
A262970
[ 1, 10, 117, 1648, 27425, 528336, 11581885, 284878336, 7772592897, 233010784000, 7614411069221, 269412832512000, 10261487793254112, 418636033893726200, 18213563455467237000, 841799936112774100000, 4.118986603111828e+22, 2.127207204243268e+24 ]
[ "nonn" ]
A370351
[ 1, 25, 55, 145, 487, 1585, 3995, 7795, 7795, 7795, 7795, 222785, 222785, 349065, 383905 ]
[ "nonn", "more" ]
A385003
[ 1, 2084, 4902, 2155, 3293, 2016, 7774, 6392, 7320, 4258, 6656, 339, 2632, 7235, 7848, 6046, 3404, 1497, 1900, 6188, 186, 1219, 2987, 7065, 7153, 4826, 1659, 7102, 6980, 2868, 4216, 4724, 5967, 1645, 1208, 6231, 2539, 7457, 6810, 2173, 2996, 2979, 3697, 6725 ]
[ "nonn", "easy", "look" ]
A148761
[ 1, 1, 3, 7, 29, 78, 338, 1058, 4698, 15815, 71857, 254131, 1171908, 4300017, 20035297, 75618646, 355106839, 1370474585, 6475644291, 25446998630, 120843594317, 482024049999, 2298547334634, 9284776929847, 44428692153983, 181411707530385, 870640865259852, 3588376805328084, 17265370230610680 ]
[ "nonn", "walk" ]
A045091
[ 6, 9, 18, 24, 27, 30, 33, 36, 39, 45, 54, 57, 66, 72, 75, 78, 96, 99, 108, 111, 114, 120, 123, 126, 129, 132, 135, 141, 144, 147, 156, 159, 177, 180, 183, 189, 198, 201, 210, 216, 219, 222, 225, 228, 231, 237, 246, 249, 258, 264 ]
[ "nonn", "base" ]
A219381
[ 3, 3, 6, 6, 7, 10, 10, 14, 23, 15, 15, 25, 84, 53, 21, 21, 40, 315, 344, 103, 28, 28, 66, 957, 2275, 1271, 182, 36, 36, 103, 2792, 11861, 15256, 4116, 302, 45, 45, 157, 7472, 60738, 143187, 88117, 12452, 478, 55, 55, 234, 18910, 278221, 1307685, 1487707, 471820 ]
[ "nonn", "tabl" ]
A272808
[ 7, 12, 17, 27, 20, 57, 8, 95, 5, 120, 7, 128, 21, 171, -36, 233, -12, 211, 25, 204, 31, 301, -76, 335, -51, 412, -97, 392, -95, 576, -221, 504, -91, 580, -253, 660, -195, 716, -249, 656, -191, 792, -309, 836, -359, 996, -409, 884, -343, 1076, -513, 1076 ]
[ "sign", "easy" ]
A127322
[ 0, 0, 1, 1, 1, 0, 1, 1, 1, 2, 2, 2, 2, 2, 2, 0, 1, 1, 1, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 0, 1, 1, 1, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 0, 1, 1, 1, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4 ]
[ "nonn" ]
A096524
[ 6, 8, 20, 36, 38, 42, 48, 50, 66, 72, 78, 96, 128, 140, 150, 152, 188, 212, 216, 218, 272, 296, 300, 318, 330, 336, 360, 366, 372, 386, 398, 408, 422, 446, 462, 482, 488, 492, 498, 542, 546, 552, 560, 570, 582, 608, 630, 638, 672, 678, 710, 716, 740, 756, 780 ]
[ "base", "easy", "nonn" ]
A161228
[ 0, 0, 1, 1, 1, 2, 1, 2, 2, 3, 3, 4, 4, 5, 6, 6, 6, 8, 8, 10, 10, 10, 12, 13, 15, 16, 16, 19, 20, 23, 24, 25, 28, 30, 33, 35, 36, 40, 42, 46, 48, 51, 54, 57, 62, 65, 67, 73, 75, 81, 84, 88, 93, 98, 103, 109, 112, 118, 123, 131, 135, 142, 147, 153, 161, 168, 174, 183, 188, 200, 206, 214 ]
[ "nonn" ]
A080998
[ 1, 2, 3, 4, 6, 5, 10, 7, 11, 9, 18, 8, 20, 13, 12, 15, 25, 14, 33, 16, 21, 23, 40, 17, 32, 28, 27, 22, 53, 19, 56, 30, 35, 39, 36, 24, 69, 46, 43, 26, 79, 29, 89, 38, 37, 55, 95, 31, 67, 45, 57, 47, 108, 41, 60, 42, 65, 75 ]
[ "nonn" ]
A357428
[ 1, 6, 52, 63, 222, 2037, 6776, 26896, 124641, 220336192, 222066488 ]
[ "nonn", "base", "more" ]