id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A146207
[ 35, 70, 336, 602, 1456, 2310, 3760, 5210, 6435, 5210, 3270, 2310, 966, 602, 126, 70 ]
[ "easy", "fini", "full", "nonn" ]
A105597
[ 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 0, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1 ]
[ "easy", "nonn" ]
A155348
[ 1, 4, 10, 19, 43, 128, 488, 2206, 10000, 48377, 276446, 1912377, 15358537, 137081258, 1363205310, 15492211198, 203922791257, 3090086318993 ]
[ "nonn" ]
A091285
[ 1, 2, 3, 6, 14, 42, 3810, 318990, 13243560, 1108809240, 1719507048, 25330080090, 271984504290 ]
[ "more", "nonn" ]
A070591
[ 0, 1, 16, 33, 16, 1, 0, 1, 16, 33, 16, 1, 0, 1, 16, 33, 16, 1, 0, 1, 16, 33, 16, 1, 0, 1, 16, 33, 16, 1, 0, 1, 16, 33, 16, 1, 0, 1, 16, 33, 16, 1, 0, 1, 16, 33, 16, 1, 0, 1, 16, 33, 16, 1, 0, 1, 16, 33, 16, 1, 0, 1, 16, 33, 16, 1, 0, 1, 16, 33, 16, 1, 0, 1, 16, 33, 16, 1, 0, 1, 16, 33, 16 ]
[ "nonn", "easy" ]
A009876
[ 1, 4, 10, 18, 27, 42, 62, 84, 109, 135, 167, 205, 243, 285, 331, 379, 430, 485, 550, 620, 688, 757, 824, 895, 979, 1071, 1167, 1258, 1341, 1432, 1541, 1662, 1777, 1875, 1970, 2081, 2212, 2358, 2501, 2628, 2754, 2883, 3014, 3164, 3332, 3502, 3659, 3796 ]
[ "nonn" ]
A161667
[ 4, 8, 10, 14, 16, 28, 56, 58, 68, 70, 98, 106, 134, 146, 148, 178, 188, 190, 194, 196, 236, 308, 310, 344, 346, 428, 520, 566, 568, 614, 638, 640, 658, 808, 824, 854, 856, 1018, 1028, 1030, 1058, 1226, 1276, 1318, 1448, 1480, 1484, 1616, 1784, 1876, 1946, 2024 ]
[ "nonn" ]
A023162
[ 1, 2, 3, 4, 7, 13, 14, 17, 23, 26, 34, 37, 43, 46, 47, 53, 67, 73, 74, 83, 86, 94, 97, 103, 106, 107, 113, 127, 134, 137, 146, 157, 163, 166, 167, 173, 193, 194, 197, 206, 214, 223, 226, 227, 233, 254, 257, 263, 274, 277, 283, 293, 307, 313, 314, 317, 326, 334 ]
[ "nonn" ]
A208253
[ 5, 96, 2040, 43344, 920928, 19566912, 415737216, 8833148160, 187677464064, 3987573838848, 84723785029632, 1800122089230336, 38247105402593280, 812634365429366800, 17266002353004577000, 366849901919230800000 ]
[ "nonn" ]
A372905
[ 2, 2, 4, 2, 2, 2, 2, 2, 2, 2, 2, 4, 4, 8, 2, 2, 6, 2, 2, 4, 2, 10, 2, 14, 2, 2, 2, 2, 2, 6, 8, 4, 8, 2, 4, 2, 2, 2, 4, 2, 2, 2, 2, 2, 14, 4, 2, 2, 26, 2, 6, 2, 2, 2, 2, 4, 2, 14, 2, 6, 2, 2, 4, 2, 2, 2, 2, 2, 2, 2, 4, 8, 38, 2, 2, 2, 10, 2, 4, 2, 2, 10, 4, 2 ]
[ "nonn" ]
A327585
[ 1, 1, 13, 13657, 3554627417365, 2.235199289200248e+34, 5.389288156715689e+87 ]
[ "nonn" ]
A126089
[ 1, -4, 4, 0, -48, -960, -20160, -483840, -13305600, -415134720, -14529715200, -564583219200, -24135932620800, -1126343522304000, -56992982228582400, -3108708121559040000, -181859425111203840000, -1.1359219476176732e+22, -7.545767223460257e+23 ]
[ "sign" ]
A365379
[ 0, 1, 3, 5, 10, 14, 27, 35, 61, 83, 128, 166, 264, 327, 482, 632, 882, 1110, 1565, 1938, 2663, 3339, 4401, 5471, 7290, 8921, 11555, 14291, 18280, 22303, 28507, 34507, 43534, 52882, 65798, 79621, 98932, 118629, 146072, 175562, 214708, 256351, 312583, 371779 ]
[ "nonn" ]
A328942
[ 8, 5, 8, 8, 5, 7, 7, 2, 0, 0, 8, 4, 1, 6, 6, 0, 6, 7, 6, 2, 4, 3, 4, 3, 7, 9, 4, 7, 3, 2, 4, 1, 6, 2, 3, 0, 7, 0, 9, 3, 8, 6, 1, 8, 1, 8, 0, 8, 1, 3, 3, 2, 2, 9, 8, 5, 8, 2, 7, 5, 2, 0, 1, 7, 6, 4, 4, 0, 8, 0, 2, 8, 6, 5, 1, 7, 4, 4, 2, 1, 6, 2, 9, 0, 8, 0, 7 ]
[ "nonn", "cons" ]
A001467
[ 1, 1, 1, 7, -791, -3748629, 151648960887729, -1.323497544567561e+30, 4.144446528245571e+61 ]
[ "sign", "frac" ]
A013711
[ 6, 216, 7776, 279936, 10077696, 362797056, 13060694016, 470184984576, 16926659444736, 609359740010496, 21936950640377856, 789730223053602800, 28430288029929700000, 1.0234903690774692e+21, 3.6845653286788893e+22, 1.3264435183244001e+24, 4.7751966659678405e+25 ]
[ "nonn", "easy" ]
A352762
[ 1, -1, -2, -7, -11, -43, -65, -259, -146, -1798, 826, -8116, 17593, -35089, 301903, -308464, 3582403, 157367, 28816009, 9388694, 329375419, -61352008, 2991009094, 509592773, 23675224255, 1207374806, 229200996508, -129896994130, 2090952547882, -816324790165, 14079091274800 ]
[ "sign" ]
A321822
[ 1, 1, -728, 1, 15626, -728, -117648, 1, 530713, 15626, -1771560, -728, 4826810, -117648, -11375728, 1, 24137570, 530713, -47045880, 15626, 85647744, -1771560, -148035888, -728, 244156251, 4826810, -386889776, -117648, 594823322, -11375728 ]
[ "sign", "easy", "mult" ]
A167385
[ 1, 3, 5, 8, 12, 17, 24, 33, 45, 61, 82, 110, 147, 196, 261, 347, 461, 612, 812, 1077, 1428, 1893, 2509, 3325, 4406, 5838, 7735, 10248, 13577, 17987, 23829, 31568, 41820, 55401, 73392, 97225, 128797, 170621, 226026, 299422, 396651, 525452, 696077, 922107, 1221533 ]
[ "nonn", "easy" ]
A026708
[ 1, 7, 39, 203, 1028, 5138, 25502, 126076, 621808, 3062202, 15065888, 74076476, 364066073, 1788762695, 8786918679, 43157674621, 211950770681, 1040830494587, 5110952704561, 25096133681015, 123225152644503, 605038125189257 ]
[ "nonn" ]
A372082
[ 3, 7, 17, 29, 71, 83, 281, 719, 1637, 2309, 3701, 4493, 5507, 6299, 7691, 8363, 9029, 11003, 13163, 17117, 18371, 20807, 31181, 31793, 32693, 32843, 33617, 33893, 34211, 34673, 37277, 38453, 49409, 50591, 61547, 62723, 65327, 65789, 66107, 66383, 67157, 67307, 68207, 68819, 79193, 81629, 82883 ]
[ "nonn", "base" ]
A128637
[ 1, -8, 24, -24, -40, 144, -120, -192, 600, -456, -688, 2016, -1464, -2096, 5952, -4176, -5800, 15984, -10920, -14816, 39888, -26688, -35488, 93888, -61752, -80824, 210576, -136536, -176320, 453456, -290448, -370688, 942936, -597600, -755024, 1901952, -1194216 ]
[ "sign" ]
A145106
[ 1, 2, 4, 7, 10, 14, 18, 32, 55, 102, 177, 190, 247, 276, 372, 1524, 1545, 2502, 4966, 5294, 13030, 13785, 14329, 27333, 44224, 93812, 127176, 128640, 136434, 184614, 269407, 311257, 349903, 389756 ]
[ "nonn" ]
A161275
[ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 1, 2, 1, 2, 1, 2, 1, 2, 3, 3, 3, 5, 4, 5, 6, 6, 6, 10, 8, 9, 11, 12, 11, 14, 13, 15, 18, 17, 18, 22, 21, 22, 25, 25, 26, 31, 29, 33, 36, 38, 38, 46, 44, 50, 55, 58, 59, 70, 69, 77, 82, 90, 91, 106, 106, 117, 124, 134, 138, 154, 157, 171, 181, 192, 199, 219, 223, 239, 252, 267, 275 ]
[ "nonn" ]
A155921
[ 4, 5, 8, 4, 9, 6, 2, 5, 0, 0, 7, 2, 1, 1, 5, 6, 1, 8, 1, 4, 5, 3, 7, 3, 8, 9, 4, 3, 9, 4, 7, 8, 1, 6, 5, 0, 8, 7, 5, 9, 8, 1, 4, 4, 0, 7, 6, 9, 2, 4, 8, 1, 0, 6, 0, 4, 5, 5, 7, 5, 2, 6, 5, 4, 5, 4, 1, 0, 9, 8, 2, 2, 7, 7, 9, 4, 3, 5, 8, 5, 6, 2, 5, 2, 2, 2, 8, 0, 4, 7, 4, 9, 1, 8, 0, 8, 8, 2, 4 ]
[ "nonn", "cons" ]
A184962
[ 1, 0, 1, 0, 1, 1, 0, 3, 3, 1, 0, 13, 15, 6, 1, 0, 75, 95, 45, 10, 1, 0, 541, 735, 390, 105, 15, 1, 0, 4683, 6727, 3885, 1190, 210, 21, 1, 0, 47293, 71127, 43918, 14805, 3010, 378, 28, 1, 0, 545835 ]
[ "nonn", "tabl" ]
A288546
[ 1, 0, 0, 0, 0, 0, 0, 0, 8, 233, 2340, 12232, 40730, 99560, 202520, 382832, 718521, 1365141, 2711069, 6858090, 31187295, 205460160, 1319924619, 7367292450, 35622715506, 152058928294, 585081743348, 2068466589925, 6834153443022, 21423303012910, 64613354395822 ]
[ "nonn" ]
A302074
[ 64, 8192, 190528, 6048836, 180330117, 5420105343, 163660519064, 4926680696151, 148486135409554, 4473321647227168, 134766772583347040, 4060050293871715000, 122318436951115960000, 3.6852809722570966e+21, 1.110348868789892e+23 ]
[ "nonn" ]
A166573
[ 13, 113, 131, 137, 139, 313, 613, 1013, 1213, 1301, 1303, 1307, 1319, 1321, 1327, 1361, 1367, 1373, 1381, 1399, 1613, 1913, 2113, 2131, 2137, 2213, 2713, 3137, 3313, 3413, 3613, 4013, 4133, 4139, 4513, 4813, 5113, 5413, 5813, 6113, 6131, 6133, 7013, 7213, 8513 ]
[ "nonn", "base" ]
A061457
[ 0, 1, 4, 9, 100, 121, 144, 169, 400, 441, 484, 676, 900, 961, 1089, 9801, 10000, 10201, 10404, 10609, 12100, 12321, 12544, 12769, 14400, 14641, 14884, 16900, 40000, 40401, 40804, 44100, 44521, 44944, 48400, 48841, 67600, 69696, 90000, 90601 ]
[ "nonn", "base", "easy" ]
A204852
[ 36598517, 58117727, 59083049, 64590133, 75138781, 83877953, 93155549, 118260929, 151948711, 159884693, 255518401, 316625693, 324966667, 342200933, 355218427, 377291533, 409498799, 418411663, 440947181, 451333889, 453332333, 516408941, 518853383, 531911293 ]
[ "nonn" ]
A054663
[ 1, 2, 8, 30, 124, 516, 2232, 9750, 43400, 195248, 887784, 4068740, 18780048, 87191964, 406900992, 1907343750, 8975758272, 42385503300, 200773540296, 953674218720, 4541306267856, 21674415838068, 103660251783288 ]
[ "nonn", "easy" ]
A235351
[ 0, 1, 2, 12, 84, 660, 5548, 48836, 444412, 4147220, 39471436, 381671204, 3738957148, 37028943860, 370123733932, 3729092573060, 37831802166076, 386135110256852, 3962278590508812, 40852572573083360, 423006921400424960, 4396894566694688000 ]
[ "nonn", "easy" ]
A054358
[ 1, 1, 0, 1, 2, 8, 18, 61, 170, 538, 1654, 5344, 17252, 57146, 190786, 646305, 2209050, 7626164, 26532732, 93013852, 328196780, 1165060170, 4158266282, 14915635376, 53745892932, 194477856048, 706436256598, 2575316698792, 9419568272632 ]
[ "nonn" ]
A088716
[ 1, 1, 3, 14, 85, 621, 5236, 49680, 521721, 5994155, 74701055, 1003125282, 14437634276, 221727608284, 3619710743580, 62605324014816, 1143782167355649, 22014467470369144, 445296254367273500, 9444925598142845000 ]
[ "nonn" ]
A048267
[ 952, 463, 464, 465, 466, 219, 220, 221, 222, 223 ]
[ "fini", "full", "nonn" ]
A125403
[ 1, 15, 153, 1359, 13733, 141695, 1486035, 15703213, 166605917, 1771212519, 18849404803, 200701390047, 2137554688991, 22768882319185, 242546650726001, 2583827618792249, 27525752610673388, 293236893096648640 ]
[ "nonn", "base" ]
A056063
[ 1, 4, 44, 652, 11636, 242816, 5896200, 166988876, 5522663076, 212691519520, 9480072152976, 485032014072352, 28212945137704000, 1845697627092687400, 134276285717364340000, 1.0746808538882581e+22 ]
[ "hard", "nice", "nonn" ]
A340821
[ 3, 3, 3, 61, 3, 3, 17, 3, 5, 13, 3, 29, 17, 13, 3, 5, 7, 19, 23, 5, 11, 3, 3, 23, 3, 3, 3, 19, 19, 7, 7, 23, 43, 5, 7, 67, 7, 7, 11, 19, 29, 3, 3, 7, 19, 5, 3, 3, 23, 3, 29, 7, 17, 13, 37, 13, 7, 3, 23, 3, 3, 19, 53, 29, 17, 3, 3, 43, 7, 43, 5, 11, 5, 7, 19, 19, 19, 163, 3, 3, 3, 7, 5, 31, 17, 19 ]
[ "nonn" ]
A251948
[ 7115, 7348, 21326, 68456, 285399, 1086474, 3678858, 15275433, 58358828, 199425794, 822991437, 3164755490, 10882904022, 44661659875, 172688623754, 596827533076, 2438379895401, 9469083712612, 32856793099878, 133766874800053 ]
[ "nonn" ]
A357956
[ 3, 19, 327, 6931, 162503, 4072519, 107094207, 2919528211, 81819974343, 2343260407519, 68285241342827, 2018360803903111, 60366625228511420, 1823565812734012700, 55557838850469310000, 1.7051723035536788e+21, 5.2672608711829115e+22, 1.6362966687568123e+24, 5.1088496012515355e+25 ]
[ "nonn", "easy" ]
A202921
[ 1, 35, 2310, 150590, 7083180, 220242352, 4694959782, 73210175188, 884548287930, 8662839281016, 71184672828044, 504049844964381, 3140436383106363, 17505068527561816, 88480896162347470, 410071668606434100 ]
[ "nonn" ]
A016598
[ 3, 0, 6, 8, 0, 5, 2, 9, 3, 5, 1, 3, 3, 6, 1, 7, 1, 1, 4, 0, 5, 5, 6, 1, 0, 3, 9, 1, 8, 8, 7, 6, 7, 0, 4, 6, 7, 4, 8, 3, 6, 3, 6, 0, 5, 0, 5, 2, 1, 3, 0, 0, 1, 6, 1, 0, 7, 1, 0, 0, 5, 2, 5, 5, 4, 2, 9, 4, 6, 5, 5, 5, 1, 9, 0, 3, 2, 9, 1, 7, 2, 2, 9, 3, 1, 7, 2, 8, 6, 7, 1, 0, 8, 7, 5, 7, 8, 5, 9 ]
[ "nonn", "cons" ]
A064120
[ 1, 6, 180, 873600, 772107033600 ]
[ "nonn", "hard" ]
A215309
[ 2, 3, 5, 41, 43, 59, 79, 97, 157, 173, 191, 193, 211, 229, 233, 269, 271, 307, 347, 383, 401, 419, 421, 439, 457, 461, 499, 571, 613, 647, 727, 743, 761, 839, 857, 877, 953, 971, 991, 1009, 1031, 1069, 1103, 1123, 1181, 1217, 1237, 1259, 1297 ]
[ "nonn", "easy" ]
A022905
[ 1, 4, 10, 19, 34, 55, 85, 124, 178, 247, 337, 448, 589, 760, 970, 1219, 1522, 1879, 2305, 2800, 3385, 4060, 4846, 5743, 6781, 7960, 9310, 10831, 12562, 14503, 16693, 19132, 21874, 24919, 28321, 32080, 36265, 40876, 45982, 51583, 57769 ]
[ "nonn" ]
A024940
[ 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 2, 1, 0, 1, 1, 1, 2, 1, 1, 2, 1, 2, 2, 0, 2, 3, 1, 1, 3, 2, 1, 4, 3, 0, 3, 3, 2, 4, 3, 3, 3, 2, 3, 3, 2, 4, 6, 4, 2, 5, 4, 2, 6, 5, 3, 7, 6, 3, 5, 5, 5, 6, 5, 4, 7, 7, 6, 8, 6, 5, 9, 7, 4, 9, 9, 6, 10, 9, 4, 9, 10, 8, 11, 11, 9, 10, 10, 9, 10, 10, 9, 14, 14, 7, 14, 14, 7, 15, 15, 8, 15, 17, 13 ]
[ "nonn" ]
A257471
[ 1, 2, 3, 4, 6, 5, 8, 9, 10, 12, 7, 15, 16, 14, 18, 20, 21, 24, 25, 28, 30, 11, 27, 32, 35, 36, 22, 40, 42, 13, 33, 45, 48, 49, 26, 44, 50, 54, 56, 39, 55, 60, 63, 64, 52, 66, 70, 72, 17, 65, 77, 80, 81, 34, 78, 84, 88, 90, 19, 51, 75, 91, 96, 99, 100 ]
[ "nonn", "easy", "look" ]
A358088
[ 0, 1, 2, 2, 3, 6, 7, 7, 7, 10, 11, 11, 12, 15, 18, 18, 19, 19, 20, 20, 23, 26, 27, 27, 27, 30, 30, 30, 31, 38, 39, 39, 42, 45, 48, 48, 49, 52, 55, 55, 56, 63, 64, 64, 64, 67, 68, 68, 68, 68, 71, 71, 72, 72, 75, 75, 78, 81, 82, 82, 83, 86, 86, 86, 89, 96, 97, 97, 100, 107, 108 ]
[ "nonn" ]
A101328
[ 1, 5, 11, 17, 23, 29, 35, 41, 47, 53, 59, 65, 71, 77, 83, 89, 95, 101, 107, 113, 119, 125, 131, 137, 143, 149, 155, 161, 167, 173, 179, 185, 191, 197, 203, 209, 215, 221, 227, 233, 239, 245, 251, 257, 263, 269, 275, 281, 287, 293, 299, 305, 311, 317, 323, 329 ]
[ "nonn" ]
A106600
[ 1, 10, 46, 141, 338, 694, 1273, 2155, 3427, 5194, 7575, 10688, 14672, 19674, 25861, 33406, 42487, 53302, 66061, 80988, 98311, 118271, 141124, 167139, 196597, 229785, 267007, 308575, 354820, 406074, 462692, 525030, 593467, 668384, 750177, 839260 ]
[ "nonn" ]
A187015
[ 1, 2, 3, 7, 6, 13, 13, 27, 26, 44, 43, 83, 81, 122, 136, 208, 215, 317, 341, 490, 542, 710, 778, 1073, 1186, 1519, 1708, 2178, 2405, 3042, 3408, 4247, 4785, 5782, 6438, 7870, 8833, 10560, 11857, 14131, 15733, 18636, 20773, 24381, 27353, 31764, 35284, 41081, 45791, 52762 ]
[ "nonn" ]
A276944
[ 1, 3, 2, 4, 7, 6, 11, 5, 16, 22, 29, 8, 37, 12, 46, 56, 67, 79, 92, 106, 121, 137, 154, 172, 191, 211, 232, 254, 277, 10, 301, 17, 326, 352, 379, 9, 407, 23, 436, 466, 497, 30, 529, 38, 562, 596, 631, 667, 704, 742, 781, 821, 862, 904, 947, 991, 1036, 1082, 1129, 13, 1177, 47, 1226, 1276, 1327, 18, 1379, 57, 1432, 1486, 1541, 68, 1597, 80, 1654 ]
[ "nonn", "base" ]
A166741
[ 1, 2, 4, 10, 32, 130, 640, 3770, 25600, 199810, 1740800, 16983850, 181043200, 2122981250, 26794393600, 367275756250, 5358878720000, 84106148181250, 1393308467200000, 24643101417106250, 457005177241600000 ]
[ "nonn" ]
A084820
[ 1, 3, 5, 7, 9, 11, 13, 17, 19, 21, 23, 25, 27, 29, 31, 33, 35, 37, 39, 41, 43, 47, 49, 51, 53, 55, 57, 59, 61, 65, 67, 69, 71, 73, 77, 79, 81, 83, 85, 87, 89, 91, 93, 95, 97, 99, 101, 103, 107, 109, 111, 113, 115, 117, 119, 121, 123, 125, 127, 129, 131, 133, 137 ]
[ "nonn" ]
A272321
[ 4, 4, 19, 1, 51, -27, 83, -19, 115, -91, 211, -147, 291, -243, 355, -187, 387, -411, 715, -723, 1055, -947, 1075, -771, 1067, -1107, 1479, -1391, 1735, -1595, 1731, -1195, 1531, -1731, 2467, -2483, 3027, -2871, 3339, -3255, 3899, -3863, 4395, -4083, 4563 ]
[ "sign", "easy" ]
A318573
[ 0, 1, 1, 2, 1, 3, 1, 3, 1, 4, 1, 5, 1, 5, 5, 4, 1, 2, 1, 7, 3, 6, 1, 7, 2, 7, 3, 9, 1, 11, 1, 5, 7, 8, 7, 3, 1, 9, 2, 10, 1, 7, 1, 11, 4, 10, 1, 9, 1, 5, 9, 13, 1, 5, 8, 13, 5, 11, 1, 17, 1, 12, 5, 6, 1, 17, 1, 15, 11, 19, 1, 4, 1, 13, 7, 17, 9, 5, 1, 13, 2, 14, 1, 11, 10, 15, 3, 16, 1, 7, 5, 19, 13, 16, 11, 11, 1, 3 ]
[ "nonn", "frac" ]
A139131
[ 1, 3, 6, 10, 15, 21, 14, 6, 15, 55, 66, 78, 91, 105, 30, 34, 51, 57, 190, 210, 231, 253, 138, 30, 65, 39, 42, 406, 435, 465, 62, 66, 561, 595, 210, 222, 703, 741, 390, 410, 861, 903, 946, 330, 345, 1081, 282, 42, 35, 255, 1326, 1378, 159, 165, 770, 798, 1653, 1711 ]
[ "nonn", "easy" ]
A256182
[ 1, 2, 8, 33, 152, 728, 3590, 18060, 92152, 475290, 2471985, 12943600, 68150321, 360491134, 1914406344, 10201142767, 54518961054, 292128744168, 1568916545308, 8443375819412, 45523087452426, 245849090689509, 1329718513219605, 7201896869193446, 39055252137506380, 212037592384217200 ]
[ "nonn" ]
A005097
[ 1, 2, 3, 5, 6, 8, 9, 11, 14, 15, 18, 20, 21, 23, 26, 29, 30, 33, 35, 36, 39, 41, 44, 48, 50, 51, 53, 54, 56, 63, 65, 68, 69, 74, 75, 78, 81, 83, 86, 89, 90, 95, 96, 98, 99, 105, 111, 113, 114, 116, 119, 120, 125, 128, 131, 134, 135, 138, 140, 141, 146, 153, 155, 156 ]
[ "nonn", "easy" ]
A294326
[ 24, 8709120, 759246199455744000, 9.235858016781807e+34, 5.730373345147398e+58 ]
[ "nonn" ]
A030702
[ 0, 1, 2, 3, 4, 5, 6, 7, 8, 12, 17, 24, 29, 44 ]
[ "nonn", "base" ]
A156462
[ 22, 0, 3200, 2952, 1651208, 6328576, 2727888448, 31390349120, 15449498784320, 512365063156800 ]
[ "nonn" ]
A247280
[ 4, 6, 8, 19, 50, 59, 63, 65, 78, 85, 93, 112, 117, 143, 237, 254, 264, 276, 287, 303, 333, 371, 380, 425, 435, 440, 447, 459, 483, 485, 537, 612, 614, 659, 731, 851, 877, 920, 983, 994, 1025, 1080, 1096, 1182, 1358, 1380, 1468, 1476, 1481, 1582, 1628, 1690 ]
[ "nonn" ]
A062104
[ 0, 0, 1, 0, 1, 2, 0, 1, 3, 6, 0, 1, 3, 9, 15, 0, 1, 3, 10, 25, 40, 0, 1, 3, 10, 29, 69, 109, 0, 1, 3, 10, 30, 84, 193, 302, 0, 1, 3, 10, 30, 89, 242, 544, 846, 0, 1, 3, 10, 30, 90, 263, 698, 1544, 2390, 0, 1, 3, 10, 30, 90, 269, 774, 2016, 4406, 6796, 0, 1, 3, 10, 30, 90, 270 ]
[ "nonn", "tabl" ]
A036802
[ 1, 1, 1, 1, 2, 3, 4, 5, 7, 9, 13, 16, 23, 29, 36, 48, 60, 80, 102, 123, 160, 195, 253, 312, 380, 476, 577, 723, 885, 1065, 1313, 1574, 1935, 2331, 2795, 3383, 4036, 4871, 5818, 6918, 8282, 9800, 11695, 13832, 16352, 19362, 22783, 26901, 31608, 37101, 43580, 50962 ]
[ "nonn" ]
A228580
[ 389, 24958279289, 1601325744926727200, 1.0274122312972477e+26, 6.591887355607899e+33, 4.2293616510831294e+41, 2.7135627492838193e+49 ]
[ "nonn", "easy" ]
A376098
[ 0, 1, 6, 66, 1112, 25640, 753552, 26950000, 1136106624, 55167345792, 3032389917440, 186130732899584, 12619351769121792, 936591263680543700, 75527892444435480000, 6.575887645386829e+21, 6.147903277905296e+23, 6.142909473908517e+25 ]
[ "nonn" ]
A166931
[ 2519, 5039, 7559, 10079, 12599, 15119, 17639, 20159, 22679, 25199, 27719, 30239, 32759, 35279, 37799, 40319, 42839, 45359, 47879, 50399, 52919, 55439, 57959, 60479, 62999, 65519, 68039, 70559, 73079, 75599, 78119, 80639, 83159, 85679 ]
[ "nonn", "easy" ]
A361565
[ 1, 3, 2, 2, 3, 5, 4, 3, 3, 7, 6, 7, 7, 9, 4, 4, 9, 9, 10, 9, 5, 13, 12, 5, 5, 15, 6, 11, 15, 11, 16, 6, 7, 19, 6, 6, 19, 21, 8, 13, 21, 13, 22, 15, 7, 25, 24, 7, 7, 15, 10, 17, 27, 15, 8, 15, 11, 31, 30, 8, 31, 33, 8, 8, 9, 17, 34, 21, 13, 17, 36, 17, 37, 39, 10 ]
[ "nonn", "frac" ]
A342568
[ 1, 7, 45, 239, 1157, 5307, 23497, 101467, 430089, 1796975, 7422437, 30373191, 123327373, 497484067, 1995542913, 7965875891, 31663779857, 125391332055, 494914083229, 1947613051807, 7643917792917, 29928228744587, 116921300015417, 455866012012299, 1774126607984665 ]
[ "nonn", "easy" ]
A068083
[ 1, 2, 3, 13, 144, 28657, 701408733, 679891637638612200, 3.948108878149992e+35, 2.1541483250565882e+71 ]
[ "nonn" ]
A360924
[ 0, 2, 3, 4, 4, 5, 5, 6, 6, 6, 7, 7, 7, 8, 8, 8, 8, 9, 9, 9, 9, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11, 12, 12, 12, 12, 12, 12, 13, 13, 13, 13, 13, 13, 14, 14, 14, 14, 14, 14, 14, 15, 15, 15, 15, 15, 15, 15, 16, 16, 16, 16, 16, 16, 16, 16, 17, 17, 17, 17, 17, 17, 17, 17, 18, 18, 18 ]
[ "nonn" ]
A290396
[ 13, 55, 277, 1513, 8593, 49825, 292417, 1729153, 10275073, 61254145, 365945857, 2189371393, 13111037953, 78565515265, 470990340097, 2824331231233, 16939544543233, 101611496669185, 609565899227137, 3656983075356673, 21940249178406910, 131634897988091900, 789782999624319000 ]
[ "nonn", "easy" ]
A092776
[ 4358928301, 809197551708, 1093976088595208, 31338180972730816, 2471107525332684300, 11364887367545635000, 148458344081473800000, 3.9064788635873533e+21, 2.4451874328084396e+22 ]
[ "nonn" ]
A023124
[ 1, 1, 1, 2, 1, 2, 1, 2, 1, 3, 2, 1, 3, 2, 1, 3, 2, 1, 4, 3, 2, 1, 4, 3, 2, 1, 4, 3, 2, 5, 1, 4, 3, 2, 5, 1, 4, 3, 2, 5, 1, 4, 3, 6, 2, 5, 1, 4, 3, 6, 2, 5, 1, 4, 3, 6, 2, 5, 1, 4, 7, 3, 6, 2, 5, 1, 4, 7, 3, 6, 2, 5, 1, 4, 7, 3, 6, 2, 5, 1, 8, 4, 7, 3, 6, 2, 5, 1, 8, 4, 7, 3, 6, 2, 5, 1, 8, 4, 7, 3 ]
[ "nonn", "easy", "nice", "eigen" ]
A023651
[ 0, 2, 15, 24, 1575, 39366 ]
[ "nonn", "base", "fini", "full" ]
A311497
[ 1, 4, 8, 12, 17, 22, 26, 30, 33, 36, 41, 47, 52, 56, 60, 64, 69, 74, 78, 80, 82, 87, 93, 99, 103, 107, 112, 116, 121, 126, 127, 129, 134, 139, 145, 149, 154, 160, 164, 168, 173, 174, 176, 182, 186, 191, 194, 200, 208, 212 ]
[ "nonn" ]
A285497
[ 3, 7, 11, 15, 17, 18, 19, 20, 23, 25, 26, 29, 33, 37, 41, 45, 49, 51, 52, 53, 54, 57, 59, 60, 63, 67, 71, 75, 79, 83, 85, 86, 87, 88, 91, 93, 94, 97, 101, 105, 109, 113, 117, 119, 120, 121, 122, 125, 127, 128, 131, 135, 137, 138, 139, 140, 143, 145, 146, 147 ]
[ "nonn", "easy" ]
A173053
[ 0, 1, 3, 118, 942, 25690, 37882 ]
[ "nonn", "more" ]
A090172
[ 1, 0, 0, 1, 1, 1, 1, 0, 0, 1, 0, 1, 1, 1, 0, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 1, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 0, 1, 0, 1, 0, 1, 1, 1, 1, 1, 0, 1, 0, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 1, 1, 0, 1, 0, 0, 0, 0 ]
[ "nonn", "easy", "tabl" ]
A039797
[ 1, 1, 1, 3, 3, 1, 14, 14, 6, 1, 84, 84, 40, 10, 1, 594, 594, 300, 90, 15, 1, 4719, 4719, 2475, 825, 175, 21, 1, 40898, 40898, 22022, 7865, 1925, 308, 28, 1, 379236, 379236, 208208, 78078, 21021, 4004, 504, 36, 1, 3711916, 3711916, 2068560, 804440, 231868, 49686, 7644, 780, 45, 1 ]
[ "nonn", "tabl", "easy", "nice" ]
A306001
[ 1, 1, 2, 8, 84, 13000 ]
[ "nonn", "more" ]
A211648
[ 0, 1, 3, 3, 1, 0, 3, 6, 3, 4, 6, 6, 3, 0, 6, 6, 1, 6, 12, 6, 0, 0, 12, 12, 3, 7, 6, 12, 6, 0, 12, 6, 3, 9, 6, 12, 4, 0, 12, 12, 6, 6, 18, 18, 6, 0, 12, 12, 3, 7, 15, 15, 0, 0, 12, 12, 6, 15, 18, 6, 6, 0, 18, 24, 1, 12, 15, 18, 6, 0, 12, 12, 12, 12, 18, 15, 6, 0, 24, 18, 0, 13, 18 ]
[ "nonn" ]
A254914
[ 512, 19890, 1041262, 28576911, 549282376, 7539746842, 82012007541, 1556819513546, 17747014175801, 264891745874783, 7544378754973669, 128524099836716030, 1084428849732639900, 284665689827815330000 ]
[ "nonn" ]
A145821
[ 89, 233, 103049, 118919033, 158366141778329, 413966186053289, 210898408132067360000, 551284565493459500000, 2.4337658023001535e+23, 6.361819108628323e+23 ]
[ "nonn" ]
A141753
[ 1, 1, 2, 7, 24, 86, 313, 1157, 4325, 16303, 61856, 235917, 903620, 3473381, 13391280, 51761781, 200523644, 778342906, 3026400508, 11785538461, 45959004812, 179444813270, 701422450293, 2744562302533, 10749124666643, 42135320616531 ]
[ "nonn" ]
A316830
[ 3, 2, 3, 1, 3, 2, 2, 6, 3, 2, 3, 1, 3, 1, 5, 1, 3, 2, 3, 1, 3, 2, 2, 6, 3, 2, 2, 6, 4, 6, 2, 6, 3, 2, 3, 1, 3, 2, 2, 6, 3, 2, 3, 1, 3, 1, 5, 1, 3, 2, 3, 1, 3, 1, 5, 1, 4, 5, 5, 1, 3, 1, 5, 1, 3, 2, 3, 1, 3, 2, 2, 6, 3, 2, 3, 1, 3, 1, 5, 1, 3, 2, 3, 1, 3, 2 ]
[ "nonn", "easy" ]
A214157
[ 1, 1, 0, 1, 2, 0, -1, 0, -1, -1, 0, -2, 0, 4, 1, -2, 3, 4, -2, -3, -1, -2, -2, -2, -5, 0, 9, 3, -4, 8, 12, -4, -7, -1, -6, -6, -4, -12, -1, 22, 6, -10, 17, 24, -9, -16, -3, -12, -11, -8, -25, -1, 45, 14, -20, 36, 52, -18, -32, -6, -25, -24, -16, -50, -2, 88 ]
[ "sign" ]
A366154
[ 0, 1, 2, 3, 1, 5, 1, 7, 3, 1, 11, 3, 2, 15, 7, 3, 1, 22, 9, 4, 2, 30, 15, 7, 4, 1, 42, 20, 11, 6, 2, 56, 32, 16, 9, 4, 1, 77, 40, 22, 12, 7, 2, 101, 61, 33, 19, 11, 4, 1, 135, 78, 44, 26, 16, 7, 2, 176, 112, 61, 39, 23, 12, 4, 1, 231, 142, 81, 52, 32, 18, 7, 2 ]
[ "nonn", "tabf" ]
A282950
[ 1, 1, 1, 1, 101, 101, 10001, 10101, 1011001, 1000001, 100011101, 101001011, 10110001101, 10000100011, 1000110101001, 1010001101001, 101100100011001, 100000001000001, 10001111100011100, 10100100001000000, 1011000101101011100, 1000010010001001000 ]
[ "nonn", "easy" ]
A226744
[ 8, 28, 169, 1218, 9512, 78030, 661459, 5740304, 50701542, 454011971, 4110416301, 37550193650, 345618860221, 3201414635781, 29816233849001, 279007258230820, 2621647966812031, 24723998785919976, 233922961602470400, 2219671974013732400 ]
[ "nonn" ]
A126568
[ 1, 2, 7, 29, 127, 572, 2623, 12182, 57115, 269750, 1281457, 6116585, 29310721, 140925176, 679493983, 3284357789, 15909178627, 77208716606, 375330428293, 1827310839359, 8908332730957, 43481990059796, 212472526927393 ]
[ "nonn" ]
A194921
[ 1, 2, 1, 3, 2, 1, 3, 4, 2, 1, 3, 5, 4, 2, 1, 3, 6, 5, 4, 2, 1, 3, 6, 7, 5, 4, 2, 1, 3, 6, 8, 7, 5, 4, 2, 1, 3, 6, 9, 8, 7, 5, 4, 2, 1, 3, 6, 10, 9, 8, 7, 5, 4, 2, 1, 3, 6, 10, 11, 9, 8, 7, 5, 4, 2, 1, 3, 6, 10, 12, 11, 9, 8, 7, 5, 4, 2, 1, 3, 6, 10, 13, 12, 11, 9, 8, 7, 5, 4, 2, 1, 3, 6, 10 ]
[ "nonn" ]
A320723
[ 30104309, 100129033, 109845884, 451564392, 622423768, 916946759, 6799389524, 9336252149, 19587821624, 98891779017, 255373745624, 1499291015624, 1532242466549, 2023768276633, 2636118566533, 2644378346249, 4324878052633, 5560581801133, 22242792374999 ]
[ "nonn", "base" ]
A186479
[ 5955, 8223, 21760, 67714, 108025, 305089, 418177, 1286113, 1812049, 5368065, 8100785, 22640045, 36286649, 96020681, 161275017, 408409609, 713044957, 1742523169, 3140266657, 7453942513, 13786320241, 31954929709, 60372875257 ]
[ "nonn" ]
A319247
[ 1, 2, 3, 2, 1, 4, 3, 1, 5, 6, 4, 1, 3, 2, 7, 8, 4, 2, 5, 1, 9, 6, 1, 10, 3, 2, 1, 11, 5, 2, 7, 1, 4, 3, 12, 8, 1, 6, 2, 13, 4, 2, 1, 14, 9, 1, 15, 7, 2, 16, 5, 3, 8, 2, 10, 1, 17, 18, 11, 1, 6, 3, 5, 2, 1, 19, 9, 2, 4, 3, 1, 20, 21, 12, 1, 5, 4, 6, 2, 1, 22 ]
[ "nonn", "tabf" ]
A200445
[ 2, 3, 4, 5, 6, 9, 12, 17, 22, 37, 52, 71, 94, 117, 148, 197, 250, 305, 364, 453, 546, 655, 768, 897, 1050, 1227, 1412, 1623, 1846, 2121, 2400, 2729, 3066, 3417, 3824, 4289, 4774, 5285, 5812, 6447, 7094, 7799, 8516, 9309, 10190, 11117, 12072, 13101, 14170 ]
[ "nonn" ]
A286252
[ 1, 5, 2, 18, 2, 23, 7, 59, 2, 23, 16, 94, 7, 80, 29, 195, 2, 23, 16, 94, 16, 467, 67, 355, 7, 80, 67, 706, 29, 302, 121, 672, 2, 23, 16, 94, 16, 467, 67, 355, 16, 467, 436, 1894, 67, 1832, 277, 1331, 7, 80, 67, 706, 67, 1832, 631, 2779, 29, 302, 277, 2704, 121, 1178, 497, 2422, 2, 23, 16, 94, 16, 467, 67, 355, 16, 467, 436, 1894, 67, 1832, 277, 1331, 16, 467, 436 ]
[ "nonn" ]
A368372
[ 0, 1, 4, 29, 111, 103, 472, 2369, 12965, 30791, 197346, 452993, 3337271, 7485915, 4160656, 18358463, 170991927, 124184839, 1278605110, 110351535, 98802055, 211524139, 2595194516, 16562041459, 219589922071, 464651871609, 2207044831642, 4649180818987, 70862100349605, 148699793966557 ]
[ "nonn", "frac" ]