id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A307361
[ 0, 1, 5, 7, 65, 151, 2105, 6847, 127265, 532231, 12365705, 63206287, 1762220465, 10645162711, 346257393305, 2413453999327, 89717615769665, 708721089607591, 29639206807284904, 261679010699505950, 12159552732032614000, 118654880542567730000, 6.064946899313607e+21 ]
[ "nonn" ]
A012924
[ 1, 2, 3, 6, 21, 82, 399, 2198, 13769, 96514, 741659, 6271430, 57131613, 564082066, 5940252647, 66977636630, 799946033937, 10133856674178, 135255348669235, 1901070660453382, 28024821142319396 ]
[ "nonn" ]
A181891
[ 0, 1, 10, 11, 100, 101, 110, 111, 1000, 1001, 1100, 1101, 10000, 10001, 10100, 10101, 11000, 11001, 11100, 11101, 100000, 100001, 101100, 101101, 110000, 110001, 111100, 111101, 1000000, 1000001, 1010000, 1010001, 1100000, 1100001, 1110000, 11100...
[ "nonn", "base", "easy" ]
A346587
[ 1, 2, 6, 8, 12, 24, 60, 80, 120, 240, 504, 1040, 1092, 1170, 1260, 1365, 1456, 1560, 1638, 1680, 1820, 1872, 2184, 2340, 2520, 2730, 3120, 3276, 3640, 4095, 4368, 4680, 5040, 5460, 6552, 7280, 8190, 9360, 10920, 13104, 16380, 21840, ...
[ "nonn", "easy" ]
A142093
[ 61, 131, 271, 691, 761, 971, 1181, 1321, 1531, 1601, 1741, 1811, 1951, 2161, 2371, 2441, 2791, 2861, 3001, 3491, 3631, 3701, 3911, 4051, 4261, 4751, 5101, 5171, 5381, 5521, 5591, 5801, 6011, 6151, 6221, 6361, 6571, 6781, 6991, 7411, 748...
[ "nonn", "easy" ]
A248859
[ 3, 3, 8, 0, 5, 8, 5, 9, 4, 0, 6, 6, 2, 3, 9, 9, 0, 2, 3, 7, 0, 2, 7, 9, 4, 5, 0, 9, 6, 1, 5, 1, 8, 8, 7, 4, 2, 6, 8, 5, 1, 3, 7, 5, 8, 3, 4, 0, 2, 0, 7, 8, 2, 5, 1, 6, 8, 6, 1, 8, 1, 2, 4, 9...
[ "nonn", "cons", "easy" ]
A015321
[ 1, -344772, 128773405047, -47790911017216080, 1.774505202958535e+22, -6.588595858168804e+27, 2.446300028783606e+33, -9.082940621119644e+38, 3.3724322761716344e+44 ]
[ "sign", "easy" ]
A155603
[ 1, 7, 33, 151, 705, 3367, 16353, 80311, 397185, 1972807, 9824673, 49005271, 244672065, 1222297447, 6108298593, 30531927031, 152630937345, 763068593287, 3815084686113, 19074648589591, 95370918425025, 476847618556327 ]
[ "nonn", "easy" ]
A284126
[ 4, 12, 12, 28, 36, 28, 68, 84, 84, 68, 164, 204, 196, 204, 164, 396, 492, 476, 476, 492, 396, 956, 1188, 1148, 1156, 1148, 1188, 956, 2308, 2868, 2772, 2788, 2788, 2772, 2868, 2308, 5572, 6924, 6692, 6732, 6724, 6732, 6692, 6924, ...
[ "nonn", "tabl" ]
A152493
[ 0, 1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 16, 17, 18, 30, 37, 58 ]
[ "base", "nonn" ]
A294087
[ 23, 11, 37, 2, 7, 5, 3, 41, 3, 13, 3, 3, 2, 2, 2, 2, 5, 5, 5, 3, 2, 2, 3, 2, 3, 2, 2, 2, 2, 2, 3, 2, 3, 2, 2, 2, 3, 2, 3, 2, 2, 2, 17, 2, 2, 2, 3, 2, 3, 2, 2, 3, 2, 2, 2, 3, 2, 2, 3, 2, 2, 2, ...
[ "nonn", "easy", "base" ]
A312080
[ 1, 4, 8, 13, 18, 22, 26, 32, 35, 39, 45, 48, 52, 59, 64, 62, 72, 78, 78, 82, 91, 91, 95, 105, 110, 102, 118, 124, 121, 125, 137, 134, 138, 151, 156, 142, 164, 170, 164, 168, 183, 177, 181, 197, 202, 182, 210, 216, 207, ...
[ "nonn" ]
A146158
[ 1, 1, 1, 1, 1, 3, 8, 14, 23, 49, 124, 341, 1108, 3645, 13272, 50449, 210792, 970179, 4987095, 27600222, 171681370, 1133281367, 8288847384, 64922838278, 565664086802, 5311135075018, 55657682314667, 624953409635386 ]
[ "nonn" ]
A011976
[ 1, 3, 3, 5, 6, 8, 9, 11, 12, 13, 18, 19, 20, 26, 27, 31, 35, 37, 39, 46, 48, 50, 59, 61, 63, 73, 75, 78, 88, 91, 94, 105, 108, 111, 124, 127, 130, 144, 147, 151, 165, 169, 173, 188, 192, 196, 213, 217, 221, 239, 243,...
[ "nonn", "easy" ]
A054664
[ 1, 1, 5, 14, 51, 165, 585, 2032, 7280, 26163, 95325, 349350, 1290555, 4792905, 17895679, 67106816, 252645135, 954429840, 3616814565, 13743869130, 52357696365, 199911109725, 764877654105, 2932030657200, 11258999068416 ]
[ "nonn", "easy" ]
A182081
[ 6, 14, 21, 33, 46, 62, 82, 106, 129, 155, 187, 221, 259, 295, 334, 381, 427, 478, 533, 591, 649, 713, 778, 849, 921, 995, 1077, 1165, 1253, 1337, 1437, 1522, 1618, 1711, 1814, 1927, 2041, 2159, 2279, 2402, 2533, 2643, 2773, 2906, ...
[ "nonn", "easy" ]
A095660
[ 3, 1, 3, 1, 4, 3, 1, 5, 7, 3, 1, 6, 12, 10, 3, 1, 7, 18, 22, 13, 3, 1, 8, 25, 40, 35, 16, 3, 1, 9, 33, 65, 75, 51, 19, 3, 1, 10, 42, 98, 140, 126, 70, 22, 3, 1, 11, 52, 140, 238, 266, 196, 92, 25, 3, 1, 1...
[ "nonn", "easy", "tabl" ]
A076868
[ 1, 2, 4, 6, 12, 12, 24, 24, 36, 48, 60, 70 ]
[ "nonn", "nice", "more" ]
A165165
[ 1, 2, 3, 4, 5, 6, 7, 8, 9, 13, 15, 17, 19, 20, 24, 26, 28, 31, 35, 37, 39, 40, 42, 46, 48, 51, 53, 57, 59, 60, 62, 64, 68, 71, 73, 75, 79, 80, 82, 84, 86, 91, 93, 95, 97, 132, 135, 138, 150, 153, 156, 159, 174, ...
[ "base", "nonn", "fini" ]
A247085
[ 1, 0, 0, 2, 4, 2, 10, 12, 34, 54, 128, 214, 444, 768, 1476, 2730, 5118, 9768, 18282, 34682, 65390, 123772, 236620 ]
[ "nonn", "more" ]
A204042
[ 1, 1, 2, 12, 120, 1520, 23160, 413952, 8505280, 197631072, 5125527360, 146787894440, 4601174623584, 156693888150384, 5761055539858528, 227438694372072130, 9596077520725211000, 430920897407809700000, 2.0520683482765477e+22, 1.0329208641499032e+24, 5.479753220832031e+25 ]
[ "nonn" ]
A129195
[ 1, 4, 8, 32, 32, 128, 256, 1024, 512, 2048, 4096, 16384, 16384, 65536, 131072, 524288, 131072, 524288, 1048576, 4194304, 4194304, 16777216, 33554432, 134217728, 67108864, 268435456, 536870912, 2147483648, 2147483648, 8589934592, 17179869184, 68719476736 ...
[ "easy", "nonn" ]
A123369
[ 0, 1, 1, 2, 2, 1, 2, 2, 1, 3, 2, 2, 2, 3, 2, 4, 3, 1, 2, 5, 3, 3, 2, 2, 1, 3, 3, 3, 1, 1, 2, 2, 2, 5, 2, 2, 2, 5, 1, 3, 4, 4, 3, 3, 3, 5, 4, 3, 3, 3, 2, 2, 6, 2, 3, 4, 2, 4, 2, 3, 3, 2, 4, 4...
[ "easy", "nonn" ]
A073982
[ 0, 0, 3, 48, 300, 1620, 9072, 48384, 262440, 1555200, 9722592, 60466176, 367960320, 2207761920, 13162730688, 78399995904, 468419708160, 2810089946880, 16894457846784, 101565116448768, 609954817881600, 3659666929459200, 21947538146863104, 131621703842267140 ]
[ "easy", "nonn" ]
A014084
[ 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1, 0, 0, 0, 0, -1, 0, 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, 0, 0, 0, 0, ...
[ "sign", "easy" ]
A313406
[ 1, 5, 10, 13, 18, 22, 29, 26, 38, 39, 52, 49, 62, 56, 65, 62, 76, 69, 86, 79, 100, 93, 114, 99, 116, 106, 123, 108, 134, 123, 148, 133, 162, 142, 167, 150, 174, 151, 182, 163, 196, 177, 210, 181, 214, 194, 225, 194, 234,...
[ "nonn" ]
A313259
[ 1, 4, 9, 15, 20, 25, 31, 36, 41, 47, 52, 56, 60, 65, 71, 76, 81, 87, 92, 97, 103, 108, 112, 116, 121, 127, 132, 137, 143, 148, 153, 159, 164, 168, 172, 177, 183, 188, 193, 199, 204, 209, 215, 220, 224, 228, 233, 239, 244...
[ "nonn" ]
A311667
[ 1, 4, 8, 13, 15, 18, 23, 27, 29, 33, 41, 45, 48, 47, 57, 60, 64, 64, 74, 80, 83, 79, 88, 94, 97, 98, 103, 110, 114, 113, 119, 122, 130, 130, 138, 140, 147, 145, 154, 156, 159, 164, 169, 174, 174, 177, 185, 188, 192, 19...
[ "nonn" ]
A192065
[ 1, 1, 3, 7, 14, 28, 58, 106, 201, 372, 669, 1187, 2101, 3624, 6229, 10591, 17796, 29659, 49107, 80492, 131157, 212237, 341084, 544883, 865717, 1367233, 2148552, 3359490, 5227270, 8096544, 12486800, 19174319, 29326306, 44678825, 67811375, 10254967...
[ "nonn" ]
A374163
[ 1, 1, 1, 2, 1, 1, 1, 2, 2, 1, 1, 4, 1, 1, 1, 2, 1, 4, 1, 1, 1, 5, 1, 1, 2, 1, 2, 3, 1, 1, 1, 2, 1, 1, 1, 4, 1, 1, 3, 1, 1, 2, 1, 1, 2, 1, 1, 2, 2, 2, 1, 1, 1, 2, 1, 2, 1, 1, 1, 1, 1, 2, 1, 2...
[ "nonn" ]
A279388
[ 1, 3, 4, 7, 6, 11, 1, 8, 15, 13, 18, 12, 23, 5, 14, 24, 23, 1, 31, 18, 35, 4, 20, 39, 3, 32, 36, 24, 47, 13, 31, 42, 40, 55, 1, 30, 59, 13, 32, 63, 48, 54, 45, 3, 71, 20, 38, 60, 56, 79, 11, 42, 83, 13, 44, ...
[ "nonn", "tabf" ]
A297299
[ 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 3, 3, 1, 1, 1, 4, 5, 5, 1, 1, 1, 6, 9, 10, 8, 1, 1, 1, 9, 17, 21, 19, 13, 1, 1, 1, 13, 32, 50, 49, 36, 21, 1, 1, 1, 19, 60, 130, 157, 114, 69, 34, 1, 1, 1, 28, 113, 33...
[ "nonn", "tabl" ]
A322535
[ 1, 1107, 38165, 398567, 2306025, 9377467, 30162301, 82073295, 197018321, 429042211, 864287973, 1633586615, 2927984825, 5017519755, 8273550157, 13194953119, 20438495649, 30853690355, 45522444469, 65803811463, 93384154505, 130333031003, 179165107485, 242908414063 ]
[ "nonn" ]
A066392
[ 1, 32, 245, 1249, 6245, 43589, 678233, 1562498, 19531257, 254460213, 508920426, 894427191, 4472135955, 817871093755, 33166247903554 ]
[ "base", "nonn", "more" ]
A175972
[ 14591, 112223, 131939, 170123, 246511, 786151, 1140257, 1188457, 1189907, 1215047, 1280179, 1462319, 1518977, 1701289, 1731929, 1815899, 2117237, 3031163, 3119797, 3151469, 5244511, 5481713, 6141757, 7413331, 8174401, 8180189, 8181269, 9116957, 9253511, 9701...
[ "base", "nonn" ]
A153005
[ 7, 31, 127, 211, 487, 571, 643, 811, 1033, 1249, 1663, 1999, 2131, 2179, 2281, 2347, 2467, 3391, 4801, 5059, 6361, 7759, 8191, 8209, 8713, 8779, 8929, 9187, 9343, 9679, 9931, 10687, 13903, 14947, 19009, 19267, 19423, 25057, 26731, 28879, ...
[ "nonn" ]
A125547
[ 1, 12, 17782, 3359860178, 80173083905265250, 2.4186738851238926e+26, 9.22395106612842e+37, 4.4468481878067624e+51 ]
[ "nonn" ]
A054514
[ 1, 1, 1, 5, 10, 16, 45, 109, 222, 540, 1341, 3065, 7328, 18112, 43530, 105390, 260254, 639244, 1570257, 3893805, 9669236, 24014264, 59903650, 149806494, 374982790, 940835404, 2365679689, 5955973237, 15018854005, 37935575685, 95942896837, 242954350457, ...
[ "nonn" ]
A146844
[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 3, 3, 13, 13, 31, 31, 85, 85, 391, 391 ]
[ "nonn" ]
A233487
[ 846914338316, 5070020645309648, 28457838067515916000, 1.586512039253167e+23, 8.78277219085987e+26, 4.8569125503112185e+30, 2.683794055605271e+34 ]
[ "nonn" ]
A368840
[ 1, 2, 9, 91, 1821, 63736, 3569217, 299814229, 35977707481, 5936321734366, 1305990781560521, 373513363526309000, 135958864323576480000, 6.18612832672273e+22, 3.464231862964729e+25, 2.3556776668160157e+28 ]
[ "nonn", "easy" ]
A010301
[ 4, 5, 1, 1, 2, 1, 3, 1, 2, 1, 1, 1, 2, 1, 4, 9, 1, 1, 1, 25, 4, 1, 2, 3, 1, 3, 2, 16, 5, 3, 3, 1, 2, 1, 9, 73, 4, 1, 2, 13, 9, 72, 3, 50, 1, 4, 8, 1, 1, 1, 3, 2, 8, 2, 4, 1, 1, 14, 1, 2, 1, 1, ...
[ "nonn", "cofr" ]
A201432
[ 3, 3, 3, 1, 11, 1, 3, 13, 13, 3, 3, 76, 99, 76, 3, 1, 160, 622, 622, 160, 1, 3, 111, 3406, 33740, 3406, 111, 3, 3, 560, 16399, 561271, 561271, 16399, 560, 3, 1, 955, 70192, 2740779, 28384610, 2740779, 70192, 955, 1, 3, 539, ...
[ "nonn", "tabl" ]
A332714
[ 1, 5, 75, 4632, 1076492, 963182263, 3317770165381, 43809083383524390, 2.2091123279713665e+21, 4.2427329130104046e+26, 3.097070644654853e+32, 8.579320198359333e+38, 9.00777960438207e+45 ]
[ "nonn" ]
A357796
[ 1, 5, 40, 635, 12095, 248245, 5381435, 121355095, 2817706420, 66909209195, 1617401484401, 39668321722180, 984661725380420, 24690230217076810, 624476169158179600, 15912858189842639000, 408139640637624160000, 1.0528308534373199e+22, 2.7297077574865854e+23 ]
[ "nonn" ]
A042538
[ 28, 113, 6356, 25537, 1436428, 5771249, 324626372, 1304276737, 73364123644, 294760771313, 16579967317172, 66614630040001, 3746999249557228, 15054611628268912, 846805250432616300 ]
[ "nonn", "cofr", "frac", "easy" ]
A038992
[ 1, 31, 121, 651, 781, 3751, 2801, 11811, 11011, 24211, 16105, 78771, 30941, 86831, 94501, 200787, 88741, 341341, 137561, 508431, 338921, 499255, 292561, 1429131, 508431, 959171, 925771, 1823451, 732541, 2929531, 954305, 3309747, 1948705, 2750971, 2...
[ "nonn", "mult" ]
A385512
[ 101, 11, 23, 13, 41, 53, 61, 17, 83, 19, 101, 101, 127, 103, 149, 151, 163, 107, 181, 109, 1201, 211, 223, 223, 241, 251, 263, 127, 281, 229, 307, 131, 1321, 233, 347, 353, 367, 137, 383, 139, 401, 241, 421, 431, 443, 457, 4...
[ "nonn", "base" ]
A299985
[ 0, 5, 10, 15, 20, 25, 26, 9, 6, 19, 16, 29, 21, 4, 1, 14, 11, 24, 27, 8, 7, 18, 17, 28, 22, 3, 2, 13, 12, 23, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 76, 39, 36, 49, 46, 59, 56, 69, 66, 79, 71, 34, 31, 44, 41...
[ "nonn", "base" ]
A310689
[ 1, 4, 7, 10, 14, 17, 20, 24, 28, 33, 37, 39, 42, 46, 50, 52, 55, 61, 67, 70, 70, 73, 78, 82, 83, 86, 94, 101, 103, 101, 104, 110, 114, 114, 117, 127, 135, 136, 132, 135, 142, 146, 145, 148, 160, 169, 169, 163, 166, 174...
[ "nonn" ]
A125902
[ 2, 8, 14, 26, 36, 72, 70, 98, 126, 190, 186, 276, 268, 372, 432, 438, 484, 634, 620, 784, 864, 950, 940, 1156, 1156, 1356, 1368, 1584, 1564, 1978, 1820, 1986, 2262, 2408, 2572, 2742, 2710, 3066, 3250, 3440, 3406, 4016, 3788, 4214,...
[ "nonn" ]
A246137
[ 0, 1, 1, 1, 6, 0, 120, 30, 840, 0, 362880, 0, 39916800, 0, 0, 64864800, 1307674368000, 0, 355687428096000, 0, 0, 0, 51090942171709440000, 0, 1.2926008369442487e+21, 0, 3.5905578804006913e+22, 0 ]
[ "nonn" ]
A065946
[ 0, 0, 6, -150, 3870, -110670, 3538500, -125941284, 4953759300, -213744815460, 10047637214010, -511403305348650, 28029852267603184, -1646397200571955700, 103190849406195450000, -6.875135229835377e+21, 4.85256294032091e+23 ]
[ "sign" ]
A195692
[ 9, 0, 4, 5, 5, 6, 8, 9, 4, 3, 0, 2, 3, 8, 1, 3, 6, 4, 1, 2, 7, 3, 1, 6, 7, 9, 5, 6, 6, 1, 9, 5, 8, 7, 2, 1, 4, 3, 1, 0, 9, 4, 5, 6, 0, 9, 6, 1, 6, 0, 5, 0, 6, 7, 6, 5, 5, 9, 9, 8, 4, 5, 3, 3...
[ "nonn", "cons" ]
A322927
[ 0, 1, 5, 51, 55, 551, 555, 5551, 5555, 55551, 55555, 555551, 555555, 5555551, 5555555, 55555551, 55555555, 555555551, 555555555, 5555555551, 5555555555, 55555555551, 55555555555, 555555555551, 555555555555, 5555555555551, 5555555555555, 55555555555551 ]
[ "nonn", "easy" ]
A057928
[ 0, -1, 2, 3, 6, 9, 15, 27, 36, 51, 87, 135, 243, 315, 531, 735, 969, 1707, 2679, 3831, 6363, 9663, 14559, 23091, 33045, 45999, 77523, 120471, 177639, 252717, 405321, 554037, 795831, 1335087, 1819527, 2491233, 4183467, 5920215, 8051991, 12...
[ "easy", "sign" ]
A253994
[ 2736, 13188, 68176, 350496, 1738927, 8730836, 43840181, 217514688, 1076487005, 5316416857, 26147742882, 128223160536, 627281505519, 3061322367965, 14907228497301, 72450268687501, 351477169523845, 1702262412004744 ]
[ "nonn" ]
A260459
[ 30103, 333010333, 33330103333, 9333301033339, 12933330103333920, 121293333010333380000, 3.8121293333010334e+24, 1.5381212933330104e+28, 1.01538121293333e+32, 3.9101538121293333e+36 ]
[ "nonn", "base", "easy" ]
A385018
[ 1, 1, 0, 1, 1, 0, 1, 2, 3, 0, 1, 3, 7, 4, 0, 1, 4, 12, 14, 3, 0, 1, 5, 18, 31, 23, -15, 0, 1, 6, 25, 56, 69, 0, -118, 0, 1, 7, 33, 90, 151, 84, -232, -336, 0, 1, 8, 42, 134, 280, 288, -234, -974, -595, 0, 1...
[ "sign", "tabl" ]
A000915
[ 24, 274, 1624, 6769, 22449, 63273, 157773, 357423, 749463, 1474473, 2749747, 4899622, 8394022, 13896582, 22323822, 34916946, 53327946, 79721796, 116896626, 168423871, 238810495, 333685495, 460012995, 626334345, 843041745, 1122686019, 1480321269, 1933889244 ]
[ "nonn", "easy" ]
A154886
[ 1, 5, 51, 655, 20980, 578779, 46097340, 2889706132, 485416306983, 68334145684271, 24330218582223816, 3847311627258606600, 2.7168901938055154e+21, 1.270766589764098e+24, 2.18803111054684e+27, 1.3312985543284759e+30 ]
[ "nonn" ]
A111192
[ 55, 91, 187, 247, 391, 667, 1147, 1591, 1927, 2491, 3127, 4087, 4891, 5767, 7387, 9991, 10807, 11227, 12091, 17947, 23707, 25591, 28891, 30967, 37627, 38407, 51067, 52891, 55687, 64507, 67591, 70747, 75067, 78391, 96091, 98587, 111547, 122491...
[ "nonn" ]
A267201
[ 1, 1716, 121, 336, 3337, 44525, 641925, 9242494, 130348644, 1783844726, 23607637070 ]
[ "nonn" ]
A031967
[ 531, 532, 533, 534, 535, 538, 540, 541, 542, 543, 546, 547, 549, 550, 551, 554, 555, 556, 558, 559, 562, 563, 564, 565, 567, 570, 571, 572, 573, 574, 643, 644, 645, 646, 647, 664, 668, 669, 670, 671, 672, 675, 677, 678, 679 ]
[ "nonn", "base" ]
A313000
[ 1, 4, 9, 14, 17, 22, 27, 31, 35, 40, 47, 50, 51, 56, 64, 68, 69, 76, 83, 84, 85, 93, 103, 104, 103, 110, 119, 120, 120, 130, 139, 138, 137, 146, 157, 157, 155, 164, 175, 174, 171, 182, 194, 192, 189, 200, 213, 210, 205, ...
[ "nonn" ]
A205767
[ 26672819, 23044169753, 20808476912916, 18792440902201504, 16933907492912075000, 1.5245666610881157e+22, 1.3716254602126713e+25, 1.2336975902231286e+28, 1.1094395430478242e+31 ]
[ "nonn" ]
A012215
[ 1, -5, 137, -9029, 1089713, -209177605, 58539026361, -22507046465157, 11386223123252448, -7334290106238921000, 5.861710212500533e+21, -5.692596379677559e+24, 6.602985113623112e+27 ]
[ "sign" ]
A258933
[ 3, 5, 41, 357, 395, 479, 645, 2637, 8853, 11529, 20087, 27443, 30635 ]
[ "nonn", "more" ]
A219087
[ 0, 1, 3, 5, 7, 9, 12, 14, 17, 20, 22, 25, 29, 32, 35, 38, 42, 45, 48, 52, 56, 59, 63, 67, 71, 75, 79, 83, 87, 91, 95, 99, 103, 107, 112, 116, 121, 125, 130, 134, 139, 143, 148, 152, 157, 162, 167, 172, 176, 181, 186,...
[ "nonn", "easy" ]
A062049
[ 2, 2, 3, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 14, 15, 16, 17, 19, 20, 21, 23, 24, 25, 27, 28, 29, 31, 32, 34, 35, 36, 38, 39, 41, 43, 44, 46, 47, 49, 50, 52, 53, 55, 57, 58, 60, 61, 63, 65, 66, 68, 70, 71, 73, 75...
[ "nonn" ]
A288259
[ 3, 5, 9, 14, 17, 22, 26, 28, 33, 35, 40, 44, 46, 51, 54, 58, 63, 67, 69, 73, 78, 82, 84, 89, 92, 96, 101, 105, 107, 112, 114, 119, 122, 127, 131, 133, 138, 141, 145, 150, 153, 158, 162, 164, 169, 172, 176, 181, 185, 18...
[ "nonn", "easy" ]
A216147
[ 3, 3, 9, 55, 513, 6251, 93313, 1647087, 33554433, 774840979, 20000000001, 570623341223, 17832200896513, 605750213184507, 22224013651116030, 875787780761718800, 36893488147419103000, 1.6544805237726737e+21, 7.869281615059308e+22, 3.956839311320627e+24 ]
[ "nonn" ]
A137931
[ 0, 10, 56, 170, 384, 730, 1240, 1946, 2880, 4074, 5560, 7370, 9536, 12090, 15064, 18490, 22400, 26826, 31800, 37354, 43520, 50330, 57816, 66010, 74944, 84650, 95160, 106506, 118720, 131834, 145880, 160890, 176896, 193930, 212024, 231210, 251520...
[ "nonn", "easy" ]
A120013
[ 1, 1, 1, 1, 2, 1, 1, 3, 4, 0, 1, 4, 9, 6, -6, 1, 5, 16, 24, -4, -33, 1, 6, 25, 60, 42, -100, -143, 1, 7, 36, 120, 192, -87, -664, -572, 1, 8, 49, 210, 530, 360, -1575, -3514, -2210, 1, 9, 64, 336, 1164, 1955, -1568...
[ "sign", "tabl" ]
A073813
[ 0, 2, 2, 3, 2, 2, 2, 3, 2, 2, 2, 3, 2, 2, 5, 2, 3, 2, 2, 2, 3, 2, 5, 2, 2, 3, 2, 2, 2, 3, 2, 2, 7, 2, 3, 2, 2, 5, 2, 3, 2, 2, 2, 3, 2, 5, 2, 2, 3, 2, 2, 2, 3, 2, 7, 2, 2, 3, 2, 2, 5, 2, 3, 2...
[ "nonn" ]
A168985
[ 1, 20, 380, 7220, 137180, 2606420, 49521980, 940917620, 17877434780, 339671260820, 6453753955580, 122621325156020, 2329805177964380, 44266298381323220, 841059669245141100, 15980133715657683000 ]
[ "nonn" ]
A041057
[ 1, 1, 5, 6, 65, 71, 349, 420, 4549, 4969, 24425, 29394, 318365, 347759, 1709401, 2057160, 22281001, 24338161, 119633645, 143971806, 1559351705, 1703323511, 8372645749, 10075969260, 109132338349 ]
[ "nonn", "cofr", "frac", "easy" ]
A359486
[ 3, 4, 5, 10, 11, 15, 17, 20, 31, 34, 41, 45, 46, 59, 60, 67, 69, 75, 80, 82, 83, 85, 90, 93, 102, 109, 119, 127, 136, 153, 155, 157, 170, 179, 191, 205, 206, 207, 211, 221, 230, 236, 241, 246, 249, 253, 254, 272, 276, ...
[ "nonn" ]
A294870
[ 1, 2, 9, 23, 45, 76, 117, 170, 236, 316, 411, 522, 650, 796, 961, 1146, 1352, 1580, 1831, 2106, 2407, 2735, 3091, 3476, 3891, 4337, 4815, 5326, 5871, 6451, 7067, 7720, 8411, 9141, 9911, 10722, 11575, 12471, 13411, 14396, 15427, 16506,...
[ "nonn", "easy" ]
A202879
[ 1, 4, 17, 76, 355, 1724, 8671, 45028, 240809, 1323460, 7461121, 43079084, 254388667, 1534503676, 9445067375, 59263320964, 378729294481, 2463130313348, 16290919259569, 109500022678540, 747527556645971, 5180110680154684, 36418521410184130, 259636520604139550 ]
[ "nonn" ]
A153164
[ 337, 409, 701, 827 ]
[ "fini", "full", "nonn", "base" ]
A217239
[ 0, 0, 2, 18, 216, 3960, 110160, 4399920, 238412160, 16777031040, 1484589254400, 161180565638400, 21054377854540800, 3256459838542310400, 588451470350449300000, 1.228275889035367e+23, 2.9325437466043776e+25 ]
[ "nonn", "easy" ]
A172810
[ 0, 0, 1, 10147, 1380339980, 923707339966121, 2.55942700360548e+21, 2.577962592208264e+28, 8.424952453803037e+35, 8.106063134891005e+43 ]
[ "nonn" ]
A084667
[ 23, 47, 613, 1237, 1759, 1861, 2383, 27103, 30113, 35149, 36151, 41179, 42181, 45197, 46199, 54251, 56263, 57269, 58271, 61283, 71353, 82421, 83431, 85439, 92479, 93487, 99523, 115631, 117643, 119653, 121661, 123677, 127709, 136769, 141811, 14582...
[ "nonn", "base" ]
A175698
[ 1089, 9, 345, 324, 2439, 594, 18, 297, 1, 45, 198, 18, 11619, 2664, 12, 27, 1188, 13986, 423, 1557, 15, 15327, 30969, 3, 16245, 1215, 115, 1476, 2871, 117, 1197, 162, 207, 18, 17289, 198, 2466, 13455, 21, 1278, 1251, 231, 117, 198...
[ "base", "nonn", "full", "fini" ]
A290574
[ 9, 378, 400, 525, 602, 1155, 1188, 1862, 2055, 2200, 2325, 2415, 2492, 2560, 2907, 3045, 3348, 3392, 3460, 3515, 3717, 3752, 3965, 4180, 4360, 4382, 4415, 4865, 4920, 5115, 5418, 5517, 5719, 6138, 6228, 6900, 7038, 7060, 7396, 7532, 756...
[ "nonn", "base" ]
A197563
[ 5, 13, 18, 27, 34, 51, 54, 68, 75, 86, 95, 108, 126, 133, 146, 154, 158, 164, 177, 184, 196, 198, 206, 218, 228, 235, 250, 254, 259, 271, 282, 293, 299, 303, 315, 332, 343, 351, 365, 379, 382, 392, 408, 411, 429, 441, 450, ...
[ "nonn", "base" ]
A113888
[ 6, 84, 1200, 17325, 252252, 3699696, 54609984, 810616950, 12092280200, 181176906768, 2725140250560, 41132585656890, 622787147955000, 9456196695480000, 143946539451475200, 2196309308974461400, 33581927605139910000, 514470608092210800000, 7.895695609776495e+21 ]
[ "easy", "nonn" ]
A302999
[ 1, 1, 2, 8, 56, 672, 13440, 443520, 23950080, 2107607040, 301387806720, 69921971159040, 26290661155799040, 16011012643881615000, 1.5786858466867272e+22, 2.519582611312017e+25, 6.508081885018939e+28, 2.7203782279379165e+32 ]
[ "nonn" ]
A191540
[ 1, 2, 3, 5, 8, 4, 14, 22, 11, 6, 39, 62, 31, 16, 7, 110, 175, 87, 45, 19, 9, 311, 494, 246, 127, 53, 25, 10, 879, 1397, 695, 359, 149, 70, 28, 12, 2486, 3951, 1965, 1015, 421, 197, 79, 33, 13, 7031, 11175, 5557, 2870, ...
[ "nonn", "tabl" ]
A201766
[ 1, 7, 6, 9, 6, 0, 1, 1, 0, 0, 1, 9, 9, 3, 5, 7, 6, 8, 9, 1, 8, 6, 5, 9, 6, 7, 7, 4, 7, 1, 0, 6, 7, 8, 5, 1, 9, 9, 3, 5, 1, 5, 9, 4, 7, 9, 1, 3, 4, 5, 7, 5, 9, 2, 4, 5, 1, 3, 4, 1, 4, 7, 4, 3...
[ "nonn", "cons" ]
A136377
[ 1, 8, 15, 3, 11, 19, 9, 18, 10, 2, 14, 7, 5, 4, 6, 13, 0, 12, 16, 17 ]
[ "nonn", "fini", "full" ]
A251148
[ 853, 1075, 1413, 1987, 2925, 4491, 7101, 11491, 18917, 31587, 53389, 91275, 157789, 275843, 487717, 872259, 1577901, 2886539, 5337725, 9971363, 18803813, 35765155, 68549453, 132276107, 256749085, 500872771, 981317541, 1929582211, 3805684077 ]
[ "nonn" ]
A049463
[ 1, 2, 7, 34, 219, 1787, 17936, 216169, 3069552, 50562672, 953877927, 20389082457, 489301660818, 13080166471127, 386841424466953, 12581201258360820, 447574544428423100, 17333939484785265000, 727718718839603500000 ]
[ "nonn", "nice", "easy" ]
A218757
[ 1, 0, 1, 0, 1, 0, 0, 1, 1, 0, 0, 2, 3, 0, 0, 0, 5, 9, 2, 0, 0, 0, 16, 32, 13, 0, 0, 0, 0, 61, 132, 72, 6, 0, 0, 0, 0, 271, 623, 409, 69, 0, 0, 0, 0, 0, 1372, 3314, 2480, 605, 24, 0, 0, 0, 0, 0, 7795, 19...
[ "nonn", "tabl" ]
A142776
[ 167, 521, 757, 1229, 1583, 2999, 3943, 4297, 4651, 5477, 6067, 6421, 7129, 7247, 8191, 8663, 9371, 10079, 10433, 11731, 12203, 12911, 13147, 13619, 14327, 14563, 15271, 16097, 16333, 16451, 17041, 17159, 17749, 18457, 19991, 21407, 21997, 224...
[ "nonn", "easy" ]
A024956
[ 1, 1, 8, 15, 22, 78, 190, 400, 1051, 2535, 7456, 18453, 47188, 126687, 358191, 954794, 2455349, 6649728, 18661770, 50325066, 134032193, 366103529, 1031003534, 2817678326, 7634389540, 20930031893, 59436464774, 163683320620, 447761993141 ]
[ "nonn" ]
A147115
[ 1, 1, 1, 9, 33, 105, 733, 10679, 271641, 6329349, 226356533, 13139244743, 1208391296607 ]
[ "nonn" ]
A301379
[ 1, 14, 128, 1378, 13932, 144300, 1480376, 15245184, 156756896, 1612836306, 16589928984, 170664508406, 1755592926518, 18059752212038, 185779058543356, 1911097952732140, 19659326724616890, 202234169412143500, 2080368880383489000, 21400612097499845000, 220146623069820850000 ]
[ "nonn", "walk" ]
A224060
[ 130, 4580, 58814, 506513, 3509115, 21167501, 114643788, 564290412, 2542634801, 10557558941, 40668731568, 146309729951, 494716846368, 1581405249972, 4804031345110, 13933344725622, 38739584907398, 103620108265460 ]
[ "nonn" ]