id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A078716
[ 1, 5, 2, 6, 3, 7, 4, 8, 5, 1, 5, 2, 6, 3, 7, 4, 8, 5, 1, 5, 2, 6, 3, 7, 4, 8, 5, 1, 5, 2, 6, 3, 7, 4, 8, 5, 1, 5, 2, 6, 3, 7, 4, 8, 5, 1, 5, 2, 6, 3, 7, 4, 8, 5, 1, 5, 2, 6, 3, 7, 4, 8, 5, 1...
[ "easy", "nonn" ]
A225755
[ 2, 3, 6, 7, 8, 7, 5, 3, 1, 9, 8, 0, 7, 7, 0, 9, 6, 0, 5, 0, 3, 3, 5, 0, 2, 1, 1, 7, 7, 0, 0, 7, 9, 3, 8, 4, 8, 8, 8, 1, 0, 2, 5, 5, 2, 0, 7, 9, 0, 4, 5, 0, 4, 9, 9, 8, 8, 8, 7, 8, 0, 1, 7, 2...
[ "nonn", "cons" ]
A126158
[ 1, 35, 1195, 63365, 5126905, 594825635, 93900238195, 19371302880965, 5061231946045105, 1633629246059544000, 638388562675692700000, 2.970335618312193e+23, 1.6226644950090244e+26 ]
[ "nonn" ]
A205248
[ 16, 40, 112, 328, 976, 2920, 8752, 26248, 78736, 236200, 708592, 2125768, 6377296, 19131880, 57395632, 172186888, 516560656, 1549681960, 4649045872, 13947137608, 41841412816, 125524238440, 376572715312, 1129718145928, 3389154437776 ]
[ "nonn", "easy" ]
A132764
[ 0, 23, 48, 75, 104, 135, 168, 203, 240, 279, 320, 363, 408, 455, 504, 555, 608, 663, 720, 779, 840, 903, 968, 1035, 1104, 1175, 1248, 1323, 1400, 1479, 1560, 1643, 1728, 1815, 1904, 1995, 2088, 2183, 2280, 2379, 2480, 2583, 2688, ...
[ "easy", "nonn" ]
A197712
[ 1, 6, 42, 410, 5032, 75418, 1334838, 27249052, 630249409, 16288946267, 465239139606, 14551915228366, 494696673952511, 18161513224841276, 716102966059713300, 30181658957863750000, 1.3540878076292982e+21, 6.443044208741494e+22, 3.2408401896073e+24, 1.7182138724939434e+26 ]
[ "nonn", "easy" ]
A204087
[ 1, 1, 1, 1, 2, 1, 1, 3, 3, 1, 1, 2, 6, 2, 1, 1, 5, 10, 10, 5, 1, 1, 1, 5, 10, 5, 1, 1, 1, 7, 7, 35, 35, 7, 7, 1, 1, 2, 14, 14, 70, 14, 14, 2, 1, 1, 3, 6, 42, 42, 42, 42, 6, 3, 1, 1, 1, 3, 6, 42, 4...
[ "nonn", "tabl" ]
A331820
[ 1, 2, 3, 8, 14, 15, 20, 32, 35, 56, 62, 63, 68, 80, 90, 95, 124, 125, 128, 174, 184, 185, 215, 224, 244, 245, 248, 254, 255, 260, 272, 275, 300, 304, 305, 320, 335, 342, 468, 469, 484, 485, 512, 515, 544, 545, 552, 575, ...
[ "nonn", "base" ]
A061620
[ 9, 46, 145, 360, 770, 1484 ]
[ "nonn", "more" ]
A260458
[ 1, 4, 3, 2, 5, 12, 7, 2, 3, 20, 11, 6, 13, 28, 15, 2, 17, 12, 19, 10, 21, 44, 23, 6, 5, 52, 3, 14, 29, 60, 31, 2, 33, 68, 35, 6, 37, 76, 39, 10, 41, 84, 43, 22, 15, 92, 47, 6, 7, 20, 51, 26, 53, 12, 55, 14,...
[ "nonn", "easy" ]
A165670
[ 1, 5, 3, 11, 9, 7, 15, 13, 6, 14, 17, 21, 19, 27, 25, 23, 31, 29, 22, 30, 49, 53, 51, 59, 57, 55, 63, 61, 54, 62, 33, 37, 35, 43, 41, 39, 47, 45, 38, 46 ]
[ "nonn", "base", "word", "fini", "full" ]
A237542
[ 106496, 4672896, 211030720, 9482488816, 426554989880, 19222160100656, 864777814816088, 38844257161707930, 1747586143383035100, 78748058122133210000, 3.542761192156156e+21, 1.5913628545830298e+23 ]
[ "nonn" ]
A077745
[ 1, 4, 38, 582, 12354, 335730, 11127150, 435300390, 19633815810, 1003121039970, 57259773499950, 3611583223860150, 249441581246630850, 18723487284033180000, 1.517668796159163e+21, 1.3211753640497713e+23 ]
[ "frac", "nonn" ]
A053979
[ 1, 1, 1, 3, 5, 2, 15, 32, 22, 5, 105, 260, 234, 93, 14, 945, 2589, 2750, 1450, 386, 42, 10395, 30669, 36500, 22950, 8178, 1586, 132, 135135, 422232, 546476, 388136, 166110, 43400, 6476, 429, 2027025, 6633360, 9163236, 7123780, 3463634, ...
[ "nonn", "tabl", "easy" ]
A195796
[ 1, 3, 5, 5, 7, 7, 8, 9, 11, 11, 13, 13, 15, 16, 16, 17, 17, 19, 19, 21, 23, 23, 24, 24, 25, 25, 27, 29, 29, 31, 31, 32, 32, 33, 35, 35, 37, 39, 40, 40, 40, 41, 43, 45, 47, 48, 49, 51, 53, 55, 55, 56, 56, 56, ...
[ "nonn" ]
A267459
[ 1, 2, 3, 4, 7, 10, 15, 20, 27, 34, 43, 52, 63, 74, 87, 100, 115, 130, 147, 164, 183, 202, 223, 244, 267, 290, 315, 340, 367, 394, 423, 452, 483, 514, 547, 580, 615, 650, 687, 724, 763, 802, 843, 884, 927, 970, 1015, 1060, ...
[ "nonn", "easy" ]
A107439
[ 2, 3, 5, 7, 17, 23, 89, 113, 137, 149, 163, 181, 191, 233, 257, 263, 277, 283, 397, 419, 421, 443, 449, 461, 463, 509, 557, 569, 593, 599, 613, 619, 701, 719, 821, 823, 829, 857, 863, 877, 919, 1097, 1103, 1117, 1171, 1181, ...
[ "nonn" ]
A324083
[ 0, 10, 101, 1622, 14804, 214731, 214731, 9868349, 637353519, 637353519, 637353519, 552071320915, 552071320915, 23850156443396, 1538225689404661, 48786742317796130, 560645672458703700, 5218561936740962000, 13868977856122300000, 126324384808079690000 ]
[ "nonn" ]
A066339
[ 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 7, 7, 8, 8, 8, 8...
[ "nonn" ]
A276102
[ 1, 50, 8250, 1636250, 349456250, 77636318760, 17672894531250, 4089765214843750, 957711284472656300, 226280605806640630000, 5.383728980431795e+22, 1.2880759628253296e+25 ]
[ "nonn", "easy" ]
A225072
[ 0, 3, 4, 5, 4, 7, 6, 8, 8, 9, 6, 9, 16, 8, 12, 11, 8, 18, 16, 12, 18, 15, 14, 15, 10, 14, 18, 28, 16, 19, 22, 14, 34, 23, 20, 19, 22, 18, 16, 27, 18, 31, 40, 22, 28, 26, 16, 36, 28, 20, 36, 33, 20, 35, 32, ...
[ "nonn" ]
A266532
[ 0, 1, 4, 7, 16, 19, 28, 37, 58, 61, 70, 79, 100, 109, 130, 151, 196, 199, 208, 217, 238, 247, 268, 289, 334, 343, 364, 385, 430, 451, 496, 541, 634, 637, 646, 655, 676, 685, 706, 727, 772, 781, 802, 823, 868, 889, 934, 979...
[ "nonn" ]
A057289
[ 1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 125, 135, 225, 243, 345, 375, 405, 625, 675, 729, 1025, 1125, 1215, 1863, 1875, 2025, 2187, 2375, 2875, 3125, 3375, 3645, 4395, 5625, 5875, 6075, 6561, 8145, 9225, 9375, 10125, 10935, 14015, 145...
[ "nonn" ]
A084975
[ 11, 127, 1361, 1693, 2503, 2999, 3299, 4327, 4861, 5623, 31469, 34123, 43391, 44351, 58889, 156007, 370373, 492227, 604171, 1357333, 1562051, 2010881, 2127269, 2238931, 4652507, 6034393, 7230479, 8421403, 8917663, 11114087, 20831533 ]
[ "nonn" ]
A105029
[ 0, 2, 6, 5, 4, 14, 13, 8, 11, 10, 9, 12, 30, 29, 24, 19, 18, 17, 20, 23, 22, 21, 16, 27, 26, 25, 28, 62, 61, 56, 51, 34, 33, 36, 39, 38, 37, 32, 43, 42, 41, 44, 47, 46, 45, 40, 35, 50, 49, 52, 55, 54, 53, 48, ...
[ "nonn", "base" ]
A286233
[ 579, 639, 14911, 18207, 38575, 47223, 310399, 492855, 16632919, 20238207, 34696495, 37400607, 37852351, 52463103, 84250111, 122992023 ]
[ "nonn", "more" ]
A335289
[ 1492260, 1741740, 2369640, 7192260, 83445180, 91798980, 104370420, 125214180, 141996120, 148532076, 162910980, 171175788, 196899780, 199793412, 201246660, 229849620, 297085860, 298993140, 398023080, 442859940, 540201480, 548305740, 796792920, 801375660, 835975140 ]
[ "nonn" ]
A245430
[ 9, 9, 18, 36, 63, 108, 198, 360, 648, 1161, 2088, 3762, 6768, 12186, 21933, 39483, 71064, 127917, 230256, 414459, 746028, 1342845, 2417121, 4350816, 7831476, 14096655, 25373979, 45673164, 82211688, 147981042, 266365872, 479458575, 863025435, 15534457...
[ "nonn", "base" ]
A138929
[ 2, 4, 6, 8, 10, 14, 16, 18, 22, 26, 32, 34, 38, 46, 50, 54, 58, 62, 64, 74, 82, 86, 94, 98, 106, 118, 122, 128, 134, 142, 146, 158, 162, 166, 178, 194, 202, 206, 214, 218, 226, 242, 250, 254, 256, 262, 274, 278, 298, 3...
[ "nonn" ]
A124371
[ 0, 1, 1, 3, 1, 1, 1, 1, 7, 1, 1, 2, 1, 1, 1, 12, 1, 2, 1, 1, 1, 1, 1, 1, 19, 1, 3, 2, 1, 1, 1, 4, 1, 1, 1, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 5, 38, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2,...
[ "easy", "nonn" ]
A336461
[ 1, 2, 3, 6, 20, 28, 40, 56, 60, 84, 120, 135, 160, 168, 176, 189, 224, 270, 304, 378, 480, 496, 528, 585, 672, 819, 912, 1170, 1372, 1488, 1638, 1836, 2156, 2744, 3025, 3672, 3724, 3780, 4116, 4312, 4572, 6050, 6076, 6468, 6525,...
[ "nonn" ]
A097990
[ 10, 11, 41, 91, 62, 53, 64, 95, 47, 19, 11, 131, 451, 971, 602, 532, 662, 992, 433, 173, 14, 154, 494, 935, 685, 536, 686, 937, 497, 158, 19, 179, 4301, 9901, 6611, 5321, 6031, 9731, 4541, 1351, 161, 1961, 4771, 9581, 6491, 53...
[ "nonn", "base", "easy" ]
A206649
[ 224, 301056, 180716227, 134185561617, 94026798615720, 66923081500826800, 47431914936748230000, 3.365572519112974e+22, 2.3873388521297917e+25, 1.6935776648670563e+28, 1.2013968003497757e+31 ]
[ "nonn" ]
A042766
[ 30, 121, 393, 1300, 5593, 336880, 1353113, 4396219, 14541770, 62563299, 3768339710, 15135922139, 49176106127, 162664240520, 699833068207, 42152648332940, 169310426399967, 550083927532841, 1819562208998490, 7828332763526801, 471519528020606500 ]
[ "nonn", "frac", "easy" ]
A275184
[ 4, 12, 41, 141, 482, 1651, 5653, 19356, 66277, 226937, 777050, 2660679, 9110369, 31194604, 106812721, 365734965, 1252304626, 4287987275, 14682397949, 50273658876, 172140871373, 589423572097, 2018231606314, 6910580115135 ]
[ "nonn" ]
A286494
[ 1, 4, 6, 7, 10, 11, 12, 13, 15, 16, 17, 18, 19, 22, 24, 25, 28, 29, 30, 31, 32, 35, 37, 38, 39, 40, 42, 43, 46, 47, 48, 49, 51, 52, 53, 54, 55, 58, 60, 61, 62, 63, 65, 66, 69, 70, 71, 72, 73, 76, 78, 79, 82, 83...
[ "nonn", "easy" ]
A332068
[ 0, 3, 4, 7, 8, 11, 12, 17, 22, 23, 24, 26, 27, 28, 32, 34, 36, 42, 44, 52, 54, 56, 62, 64, 66, 70, 72, 73, 74, 76, 77, 78, 80, 82, 84, 86, 3000000, 3000002, 3000004, 3000040, 3000042, 3000044, 6000000, 6000002, 6000004, 600004...
[ "nonn", "word" ]
A114728
[ 2, 3, 3, 18, 21, 21, 3, 3, 138, 156, 156, 52, 3, 3, 84, 84, 84, 28, 84, 84, 84, 84, 28, 12, 84, 28, 84, 28, 28, 84, 12, 3, 4, 3, 1376, 1376, 406, 406, 406, 406, 406, 406, 406, 406, 406, 406, 406, 406, 406, 406, 406, ...
[ "nonn" ]
A032699
[ 1, 5, 7, 11, 15, 21, 23, 33, 37, 39, 51, 59, 61, 67, 73, 77, 79, 89, 91, 95, 97, 107, 111, 115, 121, 127, 139, 151, 163, 175, 179, 183, 191, 195, 223, 229, 231, 235, 237, 251, 257, 263, 277, 283, 285, 299, 301, 325, 331,...
[ "nonn", "base", "less" ]
A199723
[ 1, 7, 8, 0, 6, 0, 8, 1, 1, 9, 9, 6, 6, 6, 3, 5, 2, 0, 4, 3, 3, 7, 8, 0, 1, 8, 4, 9, 0, 7, 6, 6, 6, 6, 9, 2, 2, 1, 7, 0, 4, 2, 1, 7, 2, 5, 7, 3, 1, 8, 2, 1, 6, 4, 4, 5, 0, 6, 1, 2, 5, 1, 4, 5...
[ "nonn", "cons" ]
A367927
[ 1, 2, 320, 9856080, 111411200000000, 7.58912215744345e+23, 4.641055652546246e+36, 3.5539706227151666e+52, 4.533552038712661e+71 ]
[ "nonn" ]
A355259
[ 1, 3, 2, 14, 12, 3, 90, 82, 30, 4, 744, 680, 285, 60, 5, 7560, 6788, 2985, 760, 105, 6, 91440, 80136, 35532, 9870, 1715, 168, 7, 1285200, 1098984, 482300, 138796, 27160, 3444, 252, 8, 20603520, 17227584, 7425492, 2152584, 447405, 6552...
[ "nonn", "tabl" ]
A082478
[ 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 2, 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 2, 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 2, 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 2, 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 2, 2, 2, 2...
[ "nonn" ]
A057328
[ 1531, 6841, 15391, 16651, 33301, 44371, 57991, 66601, 83431, 105871, 145021, 150151, 165901, 199621, 209431, 212851, 231241, 242551, 291271, 319681, 331801, 346141, 377491, 381631, 385591, 445741, 451411, 478801, 481021, 506791, 507781 ]
[ "nonn" ]
A228872
[ 13, 53, 113, 213, 453, 853, 909, 1813, 3413, 3637, 7253, 7281, 13653, 14549, 29013, 29125, 54613, 58197, 58253, 116053, 116501, 218453, 232789, 233013, 464213, 466005, 466033, 873813, 931157, 932053, 1856853, 1864021, 1864133, 3495253, 3724629, 3...
[ "nonn" ]
A088040
[ 16, 81, 81, 81, 2401, 50625, 923521, 15752961, 260144641, 4228250625, 68184176641, 1095222947841, 17557851463681, 281200199450625, 4501401006735361, 72040003462430720, 1152780773560811500 ]
[ "nonn" ]
A164913
[ 1, 9, 92, 917, 9175, 91742, 917433, 9174309, 91743124, 917431185, 9174311939, 91743119246, 917431192693, 9174311926553, 91743119266140, 917431192660413, 9174311926605728, 91743119266054690, 917431192660551000, 9174311926605503000 ]
[ "nonn", "easy" ]
A043253
[ 58, 85, 158, 185, 258, 285, 358, 385, 458, 485, 558, 580, 658, 685, 758, 785, 850, 885, 958, 985, 1058, 1085, 1158, 1185, 1258, 1285, 1358, 1385, 1458, 1485, 1558, 1580, 1658, 1685, 1758, 1785, 1850, 1885, 1958, 1985, 2058 ]
[ "nonn", "base" ]
A053373
[ 1, 1, 2, 1, 1, 8, 2, 10, 1, 40, 5, 2, 3, 250, 1, 1, 106, 3, 1138, 2, 8, 25, 146, 2968, 15, 298, 16, 2, 5, 17, 1856, 1, 1, 9384, 97, 10, 253970, 2, 72664, 3, 6440, 5, 521904, 1, 1, 3034, 5, 9148450, 1084152, 117, 2, ...
[ "nonn", "easy", "nice" ]
A355057
[ 1, 1, 2, 6, 15, 30, 70, 210, 462, 6006, 51051, 102102, 277134, 6374082, 10623470, 223092870, 588153930, 18232771830, 51893273670, 2127624220470, 5381637734130, 252936973504110, 6702829797858915, 13405659595717830, 41628100849860630, 2539314151841498600, 7397132529...
[ "nonn" ]
A299416
[ 3, 4, 3, 7, 11, 14, 17, 19, 22, 25, 28, 31, 34, 38, 41, 44, 47, 50, 53, 56, 59, 62, 65, 68, 71, 73, 76, 79, 82, 85, 88, 91, 94, 97, 100, 103, 106, 109, 112, 115, 118, 121, 124, 127, 130, 133, 136, 139, 142, 146, 149,...
[ "nonn", "easy" ]
A144959
[ 1, 0, 1, 2, 5, 11, 30, 78, 223, 658, 2026, 6429, 21015, 70233, 239360, 829224, 2912947, 10356334, 37205121, 134887153, 493000086, 1814902409, 6724595543, 25061885217, 93899071368, 353514105817, 1336822098961, 5075833932200 ]
[ "nonn" ]
A348453
[ 1, 1, 2, 1, 1, 10, 1, 1, 70, 117, 36, 1, 1, 4006, 1, 1, 80518, 264500, 442791, 451206, 178939, 80092, 6728, 1, 1, 158753814, 1, 7157114189 ]
[ "nonn", "tabf", "more" ]
A211473
[ 144, 1224, 10416, 88776, 757784, 6478064, 55460120, 475479800, 4082006352, 35089391112, 301998774840, 2602109942640, 22443946490552, 193770109394072, 1674359497311056, 14479231995139496, 125296349390355490 ]
[ "nonn" ]
A052876
[ 0, 0, 2, 18, 158, 1530, 16622, 201978, 2724878, 40492890, 657944942, 11611834938, 221291822798, 4530383962650, 99179581033262, 2312402554523898, 57211901491595920, 1497211181084718800 ]
[ "easy", "nonn" ]
A034282
[ 551, 574, 2998, 8265, 9407, 10357, 12459, 15885, 20480, 26103, 26134, 29297, 35096, 35984, 37113, 39084, 39733, 39735, 46572, 47212, 49449, 50190, 52072, 54930, 55689, 60586, 62004, 73452, 73592, 74285, 74358, 74609, 75454, 98440 ]
[ "nonn", "base" ]
A151383
[ 1, 3, 18, 135, 1134, 10206, 96228, 938223, 9382230, 95698746, 991787004, 10413763542, 110546105292, 1184422556700, 12791763612360, 139110429284415, 1522031755700070, 16742349312700770, 185047018719324300, 2054021907784499700, 22887672686741570000, 255925794588110260000 ]
[ "nonn", "walk" ]
A363624
[ 0, 1, 2, -1, 3, 0, 4, 2, -2, 1, 5, 3, 6, 2, -1, -2, 7, 1, 8, 4, 0, 3, 9, -1, -3, 4, 4, 5, 10, 2, 11, 3, 1, 5, -2, -3, 12, 6, 2, 0, 13, 3, 14, 6, 5, 7, 15, 4, -4, 0, 3, 7, 16, 0, -1, 1, 4, 8, 17, -2,...
[ "sign" ]
A336340
[ 1, 3, 5, 7, 8, 9, 10, 11, 12, 14, 16, 17, 18, 21, 24, 25, 26, 27, 28, 30, 31, 32, 36, 37, 38, 39, 40, 41, 48, 49, 52, 57, 60, 61, 62, 64, 65, 66, 69, 74, 76, 82, 83, 84, 85, 86, 87, 89, 91, 92, 93, 94, 95, 96, ...
[ "nonn", "easy" ]
A009395
[ 0, 1, 1, -3, -2, 45, -74, -1113, 7288, 27465, -647894, 1393227, 59935228, -604628115, -4418438114, 143982353967, -381525392432, -30072901507695, 405576151229266, 4636550476777107, -187783513074129700, 514355533864732740 ]
[ "sign", "easy" ]
A378885
[ 30, 60, 90, 105, 120, 150, 180, 210, 240, 270, 300, 315, 330, 360, 385, 390, 420, 450, 480, 510, 525, 540, 570, 600, 630, 660, 690, 720, 735, 750, 780, 810, 840, 870, 900, 930, 945, 960, 990, 1001, 1020, 1050, 1080, 1110, 1140, ...
[ "nonn", "easy" ]
A059811
[ 1, 1, 1, 1, 4, 4, 9, 36, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, ...
[ "nonn", "frac", "easy" ]
A042956
[ 1, 4, 5, 8, 9, 10, 13, 14, 16, 17, 19, 20, 21, 24, 25, 26, 27, 28, 30, 31, 34, 35, 36, 40, 41, 47, 48, 52, 56, 59, 60, 61, 63, 64, 70, 72, 73, 78 ]
[ "nonn" ]
A219124
[ 17, 205, 3495, 42231, 607115, 8325319, 114689693, 1583482167, 21831504231, 301126108879, 4153227990805, 57281866420441, 790048231002831, 10896532943007508, 150287680332386600, 2072805019108992800 ]
[ "nonn" ]
A132502
[ 2, 3, 8, 241, 74865, 9609383747, 92540549448116470000, 3.015138302798443e+40, 4.253057105851496e+81 ]
[ "frac", "nonn" ]
A345551
[ 197, 225, 232, 239, 246, 251, 253, 258, 260, 265, 267, 272, 277, 279, 281, 284, 286, 288, 291, 293, 295, 298, 300, 302, 303, 305, 307, 309, 310, 312, 314, 316, 317, 319, 321, 323, 324, 326, 328, 329, 330, 335, 336, 338, 340, 3...
[ "nonn" ]
A190051
[ 1, 3, 12, 44, 150, 482, 1476, 4344, 12368, 34240, 92544, 244992, 636928, 1629696, 4111360, 10242048, 25227264, 61505536, 148570112, 355860480, 845807616, 1996095488, 4680056832, 10906763264, 25275924480, 58271465472 ]
[ "nonn", "easy" ]
A211053
[ 0, 2, 7, 16, 23, 50, 45, 93, 99, 150, 117, 283, 167, 308, 336, 443, 289, 654, 369, 803, 658, 762, 543, 1392, 779, 1092, 1086, 1563, 879, 2160, 1011, 2038, 1652, 1888, 1758, 3323, 1445, 2386, 2302, 3730, 1795, 4220, 1989, 3889, 3...
[ "nonn" ]
A119040
[ 1, 4, 5, 10, 14, 100, 101, 141, 173, 458, 1000, 1001, 1005, 1010, 4475, 10000, 10001, 10005, 10010, 10100, 10110, 10114, 14869, 45858, 54873, 100000, 100001, 100005, 100010, 100100, 100101, 101000, 101005, 1000000, 1000001, 1000005, 1000010 ]
[ "nonn", "base" ]
A118103
[ 1, 1, 2, 4, 6, 9, 12, 15, 18, 22, 26, 30, 34, 38, 42, 47, 52, 57, 62, 67, 72, 77, 82, 87, 93, 99, 105, 111, 117, 123, 129, 135, 141, 147, 153, 159, 166, 173, 180, 187, 194, 201, 208, 215, 222, 229, 236, 243, 250, 257, ...
[ "nonn" ]
A024570
[ 1, 5, 6, 8, 19, 20, 23, 24, 25, 30, 31, 33, 62, 63, 66, 67, 68, 76, 77, 79, 80, 81, 85, 86, 88, 102, 103, 106, 107, 108, 114, 115, 117, 193, 194, 198, 199, 201, 210, 211, 213, 214, 215, 220, 221, 223, 244, 245, 248, 24...
[ "nonn" ]
A121053
[ 2, 3, 5, 1, 7, 8, 11, 13, 10, 17, 19, 14, 23, 29, 16, 31, 37, 20, 41, 43, 22, 47, 53, 25, 59, 27, 61, 30, 67, 71, 73, 33, 79, 35, 83, 38, 89, 97, 40, 101, 103, 44, 107, 109, 46, 113, 127, 49, 131, 51, 137, 54, 13...
[ "nonn", "nice" ]
A384350
[ 0, 0, 0, 1, 4, 13, 33, 81, 183, 402, 856, 1801, 3721, 7646, 15567, 31575, 63767, 128520, 258353, 518843, 1040564, 2085635, 4177405, 8364464, 16741825, 33504005, 67035250, 134112744, 268282800, 536654110, 1073426135, 2147036175, 4294318483, 8589014429...
[ "nonn" ]
A279268
[ 0, 0, 0, 2, 4, 2, 2, 10, 10, 2, 5, 20, 29, 20, 5, 8, 38, 86, 86, 38, 8, 15, 68, 240, 400, 240, 68, 15, 26, 120, 626, 1592, 1592, 626, 120, 26, 46, 208, 1603, 5888, 9042, 5888, 1603, 208, 46, 80, 358, 4030, 21882, 51568...
[ "nonn", "tabl" ]
A186189
[ 1, 1, 2, 2, 2, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6...
[ "nonn" ]
A050161
[ 0, 1, 1, 3, 4, 5, 9, 14, 20, 21, 28, 48, 75, 83, 84, 90, 165, 275, 319, 329, 330, 297, 572, 1001, 1209, 1274, 1286, 1287, 1001, 2002, 3640, 4550, 4900, 4990, 5004, 5005, 3432, 7072, 13260, 17068, 18768, 19312, 19431, 19447 ]
[ "nonn", "tabl" ]
A240506
[ 1, 3, 7, 21, 67, 213, 667, 2061, 6307, 19173, 58027, 175101, 527347, 1586133, 4766587, 14316141, 42981187, 129009093, 387158347, 1161737181, 3485735827, 10458256053, 31376865307, 94134790221, 282412759267, 847255055013, 2541798719467, 7625463267261 ]
[ "nonn" ]
A370585
[ 1, 1, 1, 1, 2, 2, 5, 5, 7, 11, 25, 25, 38, 38, 84, 150, 178, 178, 235, 235, 341, 579, 1235, 1235, 1523, 1968, 4160, 4824, 6840, 6840, 9140, 9140, 10028, 16264, 33956, 48680, 56000, 56000, 116472, 186724, 223884, 223884, 290312, 29...
[ "nonn" ]
A309371
[ 0, 1, 5, 13, 29, 48, 82, 122, 186, 239, 327, 419, 559, 674, 852, 1028, 1284, 1453, 1721, 1977, 2353, 2636, 3062, 3462, 4030, 4403, 4971, 5495, 6243, 6790, 7592, 8328, 9352, 9945, 10861, 11685, 12869, 13704, 14938, 16050, 17602, 18567,...
[ "nonn" ]
A233931
[ 0, 0, 1, 0, 3, 1, 3, 0, 7, 3, 6, 1, 9, 3, 7, 0, 15, 7, 12, 3, 16, 6, 12, 1, 21, 9, 16, 3, 21, 7, 15, 0, 31, 15, 24, 7, 30, 12, 22, 3, 36, 16, 27, 6, 34, 12, 24, 1, 45, 21, 34, 9, 42, 16, 30, 3, 49, 21, ...
[ "nonn" ]
A035157
[ 1, 2, 1, 3, 0, 2, 2, 4, 1, 0, 1, 3, 0, 4, 0, 5, 2, 2, 2, 0, 2, 2, 2, 4, 1, 0, 1, 6, 2, 0, 0, 6, 1, 4, 0, 3, 2, 4, 0, 0, 2, 4, 2, 3, 0, 4, 2, 5, 3, 2, 2, 0, 0, 2, 0, 8, 2, 4, 2, 0, 0, 0, 2, 7...
[ "nonn", "easy", "mult" ]
A387701
[ 2522, 204323, 14845324, 4843161124, 242576758750, 639897758272912 ]
[ "nonn", "hard", "more" ]
A232435
[ 1, 1, 2, 3, 1, 7, 0, 1, 13, 2, 0, 1, 24, 5, 2, 0, 1, 46, 11, 4, 2, 0, 1, 89, 21, 11, 4, 2, 0, 1, 170, 45, 23, 11, 4, 2, 0, 1, 324, 99, 47, 23, 12, 4, 2, 0, 1, 618, 209, 102, 52, 23, 13, 4, 2, 0, 1, 1183...
[ "nonn", "tabf" ]
A352676
[ 5, 8, 10, 13, 19, 24, 27, 32, 38, 43, 46, 51, 57, 60, 62, 65, 71, 76, 79, 81, 84, 90, 95, 98, 103, 109, 112, 114, 117, 122, 128, 131, 133, 136, 142, 147, 150, 152, 155, 161, 166, 169, 174, 180, 183, 185, 188, 193, 199, ...
[ "nonn" ]
A137573
[ 1, 5, 29, 186, 1281, 9294, 70109, 544833, 4333381, 35108351, 288738813, 2404256945, 20228988678, 171716799066, 1468804301441, 12647321103329, 109538312419238, 953622158606749, 8340394595266367, 73247287493299650 ]
[ "nonn" ]
A270974
[ 1, 2, 3, 5, 6, 7, 12, 14, 19, 21, 27, 33, 60, 61, 91, 102, 535, 549, 614, 695, 709, 1014, 2448, 2519, 3464, 3511, 6348, 6841, 11009, 11177, 20754, 26610, 30651, 39246, 122294 ]
[ "nonn", "more" ]
A349430
[ 1, 1, 2, 4, 10, 20, 58, 124, 344, 811, 2071, 4973, 15454, 36031, 96212, 237563, 668695, 1626751, 4674373, 11470722, 31460456, 81705943, 224598113 ]
[ "nonn", "more" ]
A234643
[ 1, 2, 5, 13, 35, 99, 297, 951, 3265, 12047, 47761, 202975, 921281, 4447327, 22737537, 122639583, 695404929, 4132531679, 25667031937, 166211936735, 1119791799425, 7833568488415, 56802921911681, 426267651506655, 3305731721387649, 26457699508131810, 21827688623753203...
[ "nonn" ]
A192807
[ 0, 1, 6, 37, 230, 1431, 8904, 55403, 344732, 2145013, 13346834, 83047505, 516743378, 3215312955, 20006521300, 124485827703, 774583500376, 4819661885417, 29989201523742, 186600684739485, 1161078447443102, 7224534909928031 ]
[ "nonn", "easy" ]
A185254
[ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 8, 395, 407240, 1125431866, 3814677304834 ]
[ "nonn", "hard", "more" ]
A244694
[ 39, 111, 317, 908, 2602, 7459, 21383, 61302, 175745, 503841, 1444456, 4141097, 11872072, 34035934, 97577307, 279743489, 801994051, 2299229415, 6591639797, 18897511895, 54177104154, 155319844796, 445285043640, 1276583622333 ]
[ "nonn" ]
A029748
[ 1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 24, 28, 32, 48, 56, 64, 96, 112, 128, 192, 224, 256, 384, 448, 512, 768, 896, 1024, 1536, 1792, 2048, 3072, 3584, 4096, 6144, 7168, 8192, 12288, 14336, 16384, 24576, 28672, 32768, 49152, 57344, ...
[ "nonn", "easy" ]
A227370
[ 0, 1, 2, 4, 3, 6, 5, 8, 7, 9, 10, 11, 12, 13, 14, 16, 15, 18, 17, 20, 19, 22, 21, 24, 23, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 36, 35, 38, 37, 40, 39, 42, 41, 44, 43, 46, 45, 48, 47, 49, 50, 51, 52, 53, 54...
[ "nonn" ]
A189635
[ 0, 0, 1, 1, 1, 2, 3, 3, 3, 3, 3, 4, 4, 4, 5, 6, 6, 6, 7, 7, 7, 7, 7, 8, 8, 8, 9, 9, 9, 10, 10, 10, 11, 12, 12, 12, 12, 12, 13, 13, 13, 14, 15, 15, 15, 16, 16, 16, 16, 16, 17, 17, 17, 18, 19, 19, 19, 19,...
[ "nonn" ]
A168518
[ 1, 1, 1, 1, 12, 1, 1, 51, 51, 1, 1, 170, 514, 170, 1, 1, 521, 3646, 3646, 521, 1, 1, 1552, 22247, 49472, 22247, 1552, 1, 1, 4591, 125565, 534995, 534995, 125565, 4591, 1, 1, 13590, 677776, 5058698, 9506078, 5058698, 677776, 13590,...
[ "nonn", "tabl" ]
A217203
[ 0, 1, 2, 7, 28, 131, 690, 4033, 25864, 180265, 1354458, 10898823, 93407828, 848739867, 8143768538, 82229315137, 871067808272, 9654457636241, 111688595475634, 1345725966256071, 16854833617813388, 219050429104638720, 2949276326665620500, 41076923039499920000 ]
[ "nonn" ]
A010000
[ 1, 3, 6, 11, 18, 27, 38, 51, 66, 83, 102, 123, 146, 171, 198, 227, 258, 291, 326, 363, 402, 443, 486, 531, 578, 627, 678, 731, 786, 843, 902, 963, 1026, 1091, 1158, 1227, 1298, 1371, 1446, 1523, 1602, 1683, 1766, 1851, 1938, 2...
[ "nonn", "easy" ]
A038866
[ 124, 208, 316, 448, 604, 784, 988, 1216, 1468, 1744, 2044, 2368, 2716, 3088, 3484, 3904, 4348, 4816, 5308, 5824, 6364, 6928, 7516, 8128, 8764, 9424, 10108, 10816, 11548, 12304, 13084, 13888, 14716, 15568, 16444, 17344, 18268, 19216, 20188 ]
[ "nonn", "easy" ]
A038009
[ 1544, 3290, 3704, 4190, 4460, 4820, 6584, 6670, 7642, 7970, 8180, 8324, 8870, 9140, 9244, 9874, 10004, 10940, 11170, 11300, 11372, 11804, 12370, 12790, 12910, 13460, 13514, 13690, 14230, 14264, 14554, 14774, 15404, 15464 ]
[ "nonn", "base" ]
A329029
[ 0, 1, 1, 5, 3, 15, 1, 7, 8, 31, 24, 93, 5, 35, 40, 155, 120, 465, 25, 175, 200, 775, 600, 2325, 125, 875, 1000, 3875, 3000, 11625, 1, 9, 10, 41, 30, 123, 12, 59, 71, 247, 213, 741, 60, 295, 355, 1235, 1065, 3705, 300, ...
[ "nonn" ]