id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A335075
[ 1, 5, 7, 13, 17, 23, 25, 29, 31, 37, 41, 43, 49, 51, 55, 59, 61, 67, 71, 73, 79, 85, 91, 95, 97, 101, 103, 109, 113, 115, 121, 125, 131, 133, 137, 141, 143, 149, 155, 157, 161, 167, 173, 175, 179, 185, 187, 191, 193, 1...
[ "nonn" ]
A102891
[ 67, 37, 7, 97, 853, 1654863667, 14865673633, 128433097567 ]
[ "more", "nonn" ]
A371670
[ 5, 11, 31, 43, 41, 37, 61, 89, 229, 79, 127, 61, 257, 137, 397, 419, 521, 337, 463, 277, 577, 251, 599, 541, 617, 349, 661, 373, 769, 727, 953, 631, 1117, 593, 761, 1483, 761, 739, 1597, 1033, 1409, 1171, 1289, 1693, 2113, 883...
[ "nonn" ]
A324492
[ 64, 2016, 146304, 8190976, 507543296 ]
[ "nonn", "more" ]
A254969
[ 1, 4, 2, 2, 2, 2, 2, 0, 2, 2, 0, 0, 0, 0, 0, 2, 2, 0, 0, 2, 0, 0, 0, 2, 2, 0, 2, 2, 2, 2, 0, 2, 2, 0, 0, 0, 0, 2, 0, 2, 0, 0, 2, 0, 2, 0, 2, 2, 0, 2, 2, 2, 2, 0, 0, 2, 0, 0, 0, 0, 2, 0, 0, 0...
[ "nonn" ]
A284435
[ 1, 1, 2, 2, 4, 4, 4, 48, 144, 144, 144, 2304, 2160, 8640, 8640, 8640, 161280, 806400, 806400, 806400, 38534400, 39168000, 108864000, 108864000, 2794176000, 5370624000, 10741248000, 21482496000, 286355865600, 1002245529600, 2004491059200, 4008982118400, ...
[ "nonn" ]
A169309
[ 1, 8, 56, 392, 2744, 19208, 134456, 941192, 6588344, 46118408, 322828856, 2259801992, 15818613944, 110730297608, 775112083256, 5425784582792, 37980492079544, 265863444556808, 1861044111897656, 13027308783283592 ]
[ "nonn" ]
A168951
[ 1, 34, 1122, 37026, 1221858, 40321314, 1330603362, 43909910946, 1449027061218, 47817893020194, 1577990469666402, 52073685498991260, 1718431621466711800, 56708243508401490000, 1.8713720357772491e+21, 6.175527718064922e+22 ]
[ "nonn" ]
A125152
[ 1, 3, 2, 9, 6, 4, 27, 20, 13, 5, 81, 60, 40, 15, 7, 243, 182, 121, 45, 22, 8, 729, 546, 364, 136, 68, 25, 10, 2187, 1640, 1093, 410, 205, 76, 30, 11, 6561, 4920, 3280, 1230, 615, 230, 91, 34, 12, 19683, 14762, 9841, 3690...
[ "nonn", "tabl" ]
A236888
[ 781, 4129, 22393, 134361, 824753, 5371569, 35771489, 248167409, 1753726713, 12755158193, 94057681665, 707248176257, 5369470677745, 41285192258417, 319494321642745, 2492347887700657, 19525186806815890, 153725340401997200 ]
[ "nonn" ]
A068008
[ 2, 3, 3, 1, 9, 7, 29, 39, 3, 43, 39, 1, 23, 27, 97, 53, 91, 37, 251, 93, 93, 19, 97, 61, 293, 153, 163, 1, 297, 103, 323, 61, 127, 113, 31, 127, 353, 67, 841, 187, 9, 21, 179, 429, 127, 97, 3, 319, 11, 51, 39, 191,...
[ "nonn", "base" ]
A122052
[ 1121, 2132, 2131, 2241, 3132, 2142, 2331, 3152, 2241, 2241, 3133, 2152, 3231, 4242, 2141, 2362, 3132, 3151, 2332, 3154, 2142, 2241, 4232, 2261, 3341, 3143, 2151, 3251, 3233, 2252, 2233, 4172, 3142, 2441, 3142, 2262, 2331, 4143, 3241, 2262...
[ "base", "nonn" ]
A291464
[ 2, 11, 13, 41, 97, 277, 389, 1093, 1229, 1409, 1429, 1627, 1823, 1931, 1979, 2437, 2521, 2549, 2657, 2689, 2719, 2729, 2731, 2969, 3019, 3413, 3539, 3593, 3613, 3623, 3697, 4003, 4027, 4289, 4327, 4583, 4751, 5051, 5323, 5503, 5657, 5...
[ "nonn" ]
A146643
[ 1, 1, 1, 1, 1, 1, 17, 21, 589, 1201, 13235, 33481, 725903, 2170199, 155541033, 580262243, 73632762107, 340925948339, 71000074991097, 403351898789271, 137271400195382000, 952292305731742000 ]
[ "nonn" ]
A101499
[ 1, 1, 1, 3, 9, 25, 73, 223, 697, 2217, 7161, 23427, 77457, 258417, 868881, 2941311, 10016241, 34289041, 117935473, 407344771, 1412307481, 4913508489, 17148100569, 60018592735, 210619695913, 740910077497, 2612194773481 ]
[ "easy", "nonn" ]
A218387
[ 1, 1, 6, 6, 2, 4, 3, 6, 1, 6, 1, 2, 3, 2, 7, 5, 1, 2, 0, 5, 5, 3, 5, 3, 7, 8, 2, 5, 8, 7, 3, 5, 7, 9, 6, 7, 5, 4, 5, 6, 2, 6, 4, 6, 1, 5, 9, 4, 3, 3, 4, 9, 0, 8, 1, 0, 4, 4, 0, 0, 6, 2, 7, 6...
[ "cons", "easy", "nonn" ]
A147506
[ 1, 1, 1, 1, 3, 5, 13, 17, 45, 89, 2453, 5391, 90561, 234023, 4542721, 13430469, 852217819, 3057070197, 235450310313, 994613290405, 113069663601167, 560671202395083, 138912840204968030 ]
[ "nonn" ]
A340380
[ 15, 21, 30, 33, 35, 39, 42, 51, 55, 57, 60, 65, 66, 69, 70, 77, 78, 84, 85, 87, 91, 93, 95, 102, 110, 111, 114, 115, 119, 120, 123, 129, 130, 132, 133, 138, 140, 141, 143, 145, 154, 155, 156, 159, 161, 168, 170, 174, 177...
[ "nonn" ]
A040636
[ 25, 1, 2, 1, 2, 3, 1, 1, 2, 6, 1, 24, 1, 6, 2, 1, 1, 3, 2, 1, 2, 1, 50, 1, 2, 1, 2, 3, 1, 1, 2, 6, 1, 24, 1, 6, 2, 1, 1, 3, 2, 1, 2, 1, 50, 1, 2, 1, 2, 3, 1, 1, 2, 6, 1, 24, 1, 6, 2, 1, 1, 3, ...
[ "nonn", "cofr", "easy", "less" ]
A339529
[ 0, 1, 7, 5, 9, 3, 0, 2, 6, 3, 8, 5, 3, 2, 1, 5, 7, 6, 2, 1, 3, 7, 5, 6, 6, 0, 4, 4, 9, 7, 9, 5, 5, 2, 0, 0, 2, 0, 6, 5, 0, 4, 3, 4, 9, 4, 8, 0, 7, 4, 7, 0, 9, 4, 9, 7, 3, 2, 4, 6, 9, 3, 0, 1...
[ "nonn", "cons" ]
A015300
[ 1, 13421, 198134223, 2898705467483, 42442845454886090, 621401842151984100000, 9.097949506151747e+24, 1.3320307188461081e+29, 1.9502261845599148e+33 ]
[ "nonn", "easy" ]
A000193
[ 0, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4...
[ "nonn", "easy" ]
A233678
[ 2440, 23568, 216592, 2442208, 25036784, 289389648, 3057995568, 35239626640, 377551693872, 4321333099024, 46708511630640, 531289387089424, 5779703369824304, 65409280729909520, 715049970687872800 ]
[ "nonn" ]
A259566
[ 1, 4, 7, 13, 16, 22, 25, 40, 43, 49, 52, 67, 70, 76, 79, 121, 124, 130, 133, 148, 151, 157, 160, 202, 205, 211, 214, 229, 232, 238, 241, 364, 367, 373, 376, 391, 394, 400, 403, 445, 448, 454, 457, 472, 475, 481, 484, 607, ...
[ "nonn", "base", "less" ]
A297439
[ 4, 9, 8, 30, 16, 84, 32, 216, 64, 528, 128, 1248, 256, 2880, 512, 6528, 1024, 14592, 2048, 32256, 4096, 70656, 8192, 153600, 16384, 331776, 32768, 712704, 65536, 1523712, 131072, 3244032, 262144, 6881280, 524288, 14548992, 1048576, 30670848, ...
[ "nonn", "easy" ]
A082691
[ 1, 2, 1, 2, 3, 1, 2, 1, 2, 3, 4, 1, 2, 1, 2, 3, 1, 2, 1, 2, 3, 4, 5, 1, 2, 1, 2, 3, 1, 2, 1, 2, 3, 4, 1, 2, 1, 2, 3, 1, 2, 1, 2, 3, 4, 5, 6, 1, 2, 1, 2, 3, 1, 2, 1, 2, 3, 4, 1, 2, 1, 2, 3, 1...
[ "nonn" ]
A064710
[ 1, 22, 66, 70, 81, 94, 115, 119, 170, 210, 214, 217, 265, 282, 310, 322, 343, 345, 357, 364, 382, 385, 472, 497, 510, 517, 527, 642, 651, 679, 710, 742, 745, 782, 795, 820, 862, 884, 889, 930, 935, 966, 970, 1029, 1066, 1080, ...
[ "easy", "nonn" ]
A190203
[ 2, 3, 4, 6, 8, 11, 12, 15, 20, 21, 22, 24, 25, 28, 29, 31, 33, 37, 38, 40, 41, 42, 44, 46, 49, 50, 53, 55, 58, 59, 62, 63, 66, 67, 69, 71, 72, 75, 76, 78, 80, 82, 84, 87, 88, 91, 93, 96, 97, 100, 101, 104, 105, ...
[ "nonn" ]
A339112
[ 1, 7, 13, 23, 29, 43, 47, 49, 73, 79, 91, 97, 101, 137, 139, 149, 161, 163, 167, 169, 199, 203, 227, 233, 257, 269, 271, 293, 299, 301, 313, 329, 343, 347, 373, 377, 389, 421, 439, 443, 449, 467, 487, 491, 499, 511, 529, 5...
[ "nonn" ]
A175871
[ 2, 7, 22, 11, 34, 17, 52, 26, 13, 40, 20, 10, 5, 16, 8, 4, 2, 7, 22, 11, 34, 17, 52, 26, 13, 40, 20, 10, 5, 16, 8, 4, 2, 7, 22, 11, 34, 17, 52, 26, 13, 40, 20, 10, 5, 16, 8, 4, 2, 7, 22, 11, 34, 17, 52, 26,...
[ "easy", "nonn" ]
A259638
[ 133, 365, 1483, 4146, 12348, 42524, 133078, 406770, 1313046, 4180198, 13059524, 41407226, 131557812, 414760302, 1310911640, 4153427590, 13129841142, 41501667938, 131324101864, 415367424944, 1313373627382, 4154238856134 ]
[ "nonn" ]
A212040
[ 0, 1, 5, 119, 1310, 7849, 32696, 107400, 298404, 731960, 1630174, 3361016, 6505445, 11945114, 20974435, 35441099, 57919461, 91921515, 142150499, 214802485, 317921624, 461815031 ]
[ "nonn" ]
A078387
[ -1, -1, 0, 1, 0, -1, 0, 1, 0, -1, 1, 0, -1, -1, 0, 0, 0, 1, 0, 1, 0, 0, -1, 0, 0, 1, -1, 1, 0, -1, 0, -1, 1, 0, -1, 0, 1, 1, 1, 1, 0, 0, 0, 1, 0, -1, 0, -1, 1, 1, 0, 0, -1, 0, 1, 0, 1, 0, -1, 0, 1...
[ "sign" ]
A016150
[ 1, 11, 93, 715, 5261, 37851, 269053, 1899755, 13363821, 93808891, 657710813, 4608169995, 32273967181, 225984879131, 1582162589373, 11076211867435, 77537778039341, 542781626144571, 3799540102488733, 26597055595328076, 186180488678924300, 1303267818798981000, 91228923237789...
[ "nonn", "easy" ]
A034429
[ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 10, 47, 147, 477, 1302 ]
[ "nonn", "more" ]
A050704
[ 8, 9, 10, 12, 14, 15, 20, 21, 26, 28, 33, 35, 38, 39, 40, 44, 48, 51, 54, 56, 62, 65, 68, 69, 76, 77, 80, 86, 88, 91, 93, 95, 96, 111, 112, 116, 122, 123, 124, 129, 133, 136, 146, 148, 152, 159, 161, 176, 188, 189, 1...
[ "nonn", "nice" ]
A309178
[ 0, 2, 5, 17, 181 ]
[ "nonn", "more" ]
A111133
[ 0, 0, 0, 1, 1, 2, 3, 4, 5, 7, 9, 11, 14, 17, 21, 26, 31, 37, 45, 53, 63, 75, 88, 103, 121, 141, 164, 191, 221, 255, 295, 339, 389, 447, 511, 584, 667, 759, 863, 981, 1112, 1259, 1425, 1609, 1815, 2047, 2303, 2589, 2909, ...
[ "nonn", "nice" ]
A379334
[ 1, 6, 5, 7, 4, 3, 4, 7, 8, 2, 6, 4, 9, 1, 1, 0, 7, 2, 3, 5, 1, 5, 7, 7, 2, 0, 2, 9, 2, 3, 3, 3, 6, 9, 0, 8, 9, 8, 8, 7, 8, 5, 4, 9, 7, 8, 3, 4, 0, 4, 5, 7, 6, 6, 1, 6, 5, 7, 4, 2, 3, 5, 9, 1...
[ "nonn", "cons" ]
A272320
[ 1, 6, 15, 43, 72, 152, 205, 341, 458, 690, 831, 1183, 1388, 1884, 2137, 2745, 3166, 3974, 4371, 5483, 5872, 7316, 7813, 9385, 10186, 12054, 12815, 15055, 15904, 18488, 19477, 22197, 23722, 26778, 28103, 31895, 33204, 37540, 39005, 43809, ...
[ "nonn", "easy" ]
A255667
[ 65536, 262144, 1020000, 3083292, 7323894, 15269184, 29577432, 53275408, 90990131, 149141772, 236469626, 364664160, 549120490, 809830656, 1172434356, 1669450392, 2341713998, 3240048488, 4427203308, 5980094628, 7992389097 ]
[ "nonn" ]
A106367
[ 5, 10, 20, 70, 204, 700, 2340, 8230, 29140, 104968, 381300, 1398500, 5162220, 19175140, 71582940, 268439590, 1010580540, 3817763740, 14467258260, 54975633976, 209430787820, 799645010860, 3059510616420, 11728124734500 ]
[ "nonn" ]
A230446
[ 1, 1, -1, 0, 1, 0, -1, 0, 3, 0, -2, 0, 2, 0, -5, 0, 6, 0, -7, 0, 7, 0, -9, 0, 12, 0, -13, 0, 16, 0, -20, 0, 25, 0, -27, 0, 31, 0, -38, 0, 44, 0, -51, 0, 58, 0, -69, 0, 80, 0, -92, 0, 102, 0, -118, 0, 141,...
[ "sign" ]
A141686
[ 1, 1, 1, 1, 8, 1, 1, 33, 33, 1, 1, 104, 396, 104, 1, 1, 285, 3020, 3020, 285, 1, 1, 720, 17865, 48320, 17865, 720, 1, 1, 1729, 90153, 546665, 546665, 90153, 1729, 1, 1, 4016, 409024, 4941104, 10933300, 4941104, 409024, 4016, 1, ...
[ "nonn", "tabl" ]
A186137
[ 187704, 21216780, 2513594016, 296649133848, 35143110551556, 4163686846399494, 493359058239095900, 58456633907530056000, 6.92651934532027e+21, 8.207148635614084e+23, 9.724597062888438e+25 ]
[ "nonn" ]
A230878
[ 1, 0, 2, 0, 0, 8, 32, 16, 0, 0, 0, 48, 720, 2880, 4992, 4608, 2304, 512, 0, 0, 0, 0, 384, 13824, 143872, 739328, 2320896, 4964352, 7659520, 8749056, 7421952, 4587520, 1966080, 524288, 65536, 0, 0, 0, 0, 0, 3840, 268800, 5504000, 5...
[ "nonn", "tabf" ]
A172959
[ 0, 9, 2124, 5010670, 79190239681, 6289730555976945, 2.0229617728064027e+21, 2.2330308629525777e+27, 7.423987282347762e+33, 6.687997149599555e+40 ]
[ "nonn" ]
A359459
[ 1, 1, 3, 10, 49, 331, 3091, 36142, 507585, 8264917, 153670771, 3217628206, 75150452257, 1941092955127, 55052488501011, 1703811095028946, 57225901450900800, 2075951065582081500, 80989170394085900000, 3.385153152861566e+21, 1.5106964625300798e+23, 7.176064437477334e+24 ]
[ "nonn" ]
A286665
[ 0, 1, 0, 1, 1, 0, 1, 0, 1, 1, 0, 1, 0, 1, 0, 1, 1, 0, 1, 0, 1, 1, 0, 1, 0, 1, 0, 1, 1, 0, 1, 0, 1, 1, 0, 1, 0, 1, 1, 0, 1, 0, 1, 0, 1, 1, 0, 1, 0, 1, 1, 0, 1, 0, 1, 0, 1, 1, 0, 1, 0, 1, 1, 0...
[ "nonn", "easy" ]
A128864
[ 1, 1, 1, 2, 3, 1, 2, 2, 1, 1, 2, 2, 2, 2, 2, 4, 1, 2, 2, 2, 2, 4, 2, 2, 2, 3, 4, 4, 2, 2, 4, 2, 1, 2, 4, 4, 3, 2, 4, 2, 2, 2, 4, 2, 2, 6, 2, 2, 2, 3, 2, 4, 2, 2, 4, 4, 2, 2, 2, 2, 4, 2, 2, 6...
[ "nonn" ]
A377953
[ 310155, 2566025, 2853135, 5746455, 6515145, 7329608, 8459360, 11291091, 15446079, 16181535, 26782224, 26942475, 32364464, 34318844, 36951200, 38579442, 38596239, 38763900, 40564524, 41273154, 47308976, 47648600, 49309715, 50163735, 51177224, 52573520, 58524465, ...
[ "nonn" ]
A360708
[ 1, 0, 1, 1, 2, 5, 14, 42, 136, 479, 1825, 7433, 32053, 145608, 695081, 3479117, 18209842, 99373513, 563920590, 3320674902, 20255823092, 127799984935, 832807892861, 5597481205009, 38753768384761, 276057156622776, 2021100095469577, 15193591060371576 ]
[ "nonn" ]
A347317
[ 0, 1, 1, 0, 2, 2, 2, 0, 3, 2, 4, 1, 1, 0, 4, 4, 4, 1, 4, 0, 5, 5, 4, 1, 6, 2, 1, 0, 6, 7, 5, 1, 6, 3, 3, 1, 0, 7, 9, 5, 3, 6, 4, 4, 2, 0, 1, 0, 9, 10, 6, 4, 9, 4, 5, 2, 0, 3, 1, 0, 11, 11, 7, ...
[ "nonn", "tabf" ]
A200662
[ 3, 6, 12, 24, 46, 89, 176, 350, 697, 1391, 2780, 5555, 11098, 22170, 44288, 88472, 176729, 353032, 705224, 1408771, 2814203, 5621746, 11230193, 22433834, 44814616, 89523251, 178834811, 357246713, 713648606, 1425609609, 2847847987, 5688961529 ]
[ "nonn" ]
A355168
[ 1, 5, 8, 11, 27, 36, 52, 58, 64, 70, 76, 89, 96, 103, 110, 125, 140, 148, 156, 164, 181, 198, 207, 216, 225, 234, 272, 322, 343, 364, 419, 430, 453, 476, 488, 500, 512, 524, 536, 548, 573, 598, 702, 729, 756, 811, 868, 882...
[ "nonn", "easy" ]
A342487
[ 1, 2, 17, 34, 4097, 258, 1679617, 262658, 60467201, 8388610, 1000000000001, 67133442, 1283918464548865, 940369969154, 281479271743489, 2251816993685506, 4.722366482869645e+21, 1218719481069570, 1.2748236216396078e+25, 9223380832949895000 ]
[ "nonn" ]
A261807
[ 0, 0, 10, 24, 68, 120, 222, 336, 520, 720, 994, 1336, 1740, 2200, 2742, 3360, 4112, 4896, 5850, 6872, 8020, 9272, 10638, 12176, 13848, 15632, 17586, 19704, 21980, 24408, 26982, 29760, 32800, 35904, 39338, 42840, 46692, 50680, 54910, 59280...
[ "nonn", "base" ]
A221102
[ 1, 1, 2, 15, 200, 3760, 91224, 2709812, 95224912, 3863456064, 177719432160, 9139465292232, 519589955270880, 32357519212143216, 2190546095240274700, 160174321738326200000, 1.2580536897832728e+22, 1.0563180931637933e+24, 9.441989421130824e+25 ]
[ "nonn" ]
A256422
[ 5, 293, 331, 616, 745, 983, 1076, 1672, 2177, 2821, 3599, 6591, 7804, 10174, 11629, 13141, 13397, 15589, 17767, 18814, 19859, 21112, 21247, 23242, 24785, 34351, 36447, 40122, 45630, 48033, 51235, 51519, 61179, 63826, 73394, 78624, 80112, 8825...
[ "nonn" ]
A282565
[ 3, 5, 13, 29, 43, 113, 223, 509, 907, 2003, 4051, 8171, 16333, 32603, 65437, 130649, 262027, 524261, 1048507, 2097047, 4194277, 8388209, 16776481, 33554201, 67108753, 134217401, 268435273, 536869631, 1073741719, 2147483549, 4294966477, 8589934307, 1717...
[ "nonn" ]
A127961
[ 1, 11, 1011, 101011, 10101011, 1010101011, 101010101011, 10101010101011, 1010101010101011, 101010101010101010, 10101010101010100000, 1.01010101010101e+21, 1.01010101010101e+23, 1.01010101010101e+25, 1.0101010101010101e+27 ]
[ "easy", "nonn", "less", "base" ]
A306146
[ 1, 14, 22, 28, 44, 46, 56, 75, 88, 92, 94, 112, 118, 166, 176, 184, 188, 214, 224, 236, 332, 334, 352, 358, 368, 375, 376, 422, 428, 448, 454, 472, 526, 639, 662, 664, 668, 694, 704, 716, 718, 736, 752, 766, 844, 856, 867, ...
[ "nonn" ]
A213550
[ 1, 5, 2, 15, 9, 3, 35, 25, 13, 4, 70, 55, 35, 17, 5, 126, 105, 75, 45, 21, 6, 210, 182, 140, 95, 55, 25, 7, 330, 294, 238, 175, 115, 65, 29, 8, 495, 450, 378, 294, 210, 135, 75, 33, 9, 715, 660, 570, 462, 350, 245, ...
[ "nonn", "tabl", "easy" ]
A109774
[ 0, 8, 104, 1040, 9680, 88088, 795704, 7170080, 64556960, 581091368, 5230058504, 47071235120, 423643241840, 3812795553848, 34315179116504, 308836669444160, 2779530197184320, 25015772291219530, 225141952170657700, 2026277574184965000, 18236498181611825000 ]
[ "nonn", "easy" ]
A225515
[ 2, 1, 2, 2, 1, 2, 2, 1, 2, 2, 1, 2, 2, 2, 1, 2, 2, 1, 2, 2, 2, 1, 2, 2, 1, 2, 2, 2, 1, 2, 2, 2, 1, 2, 2, 2, 1, 2, 2, 2, 1, 2, 2, 2, 1, 2, 2, 2, 2, 1, 2, 2, 2, 1, 2, 2, 2, 1, 2, 2, 2, 2, 1, 2...
[ "nonn" ]
A054942
[ 1, 0, 12, 304, 27664, 6990848, 5179182272, 11396324423680, 74944172893348100, 1.4764053549717035e+21, 8.720835262765697e+25, 1.5450530398306944e+31, 8.211400756816955e+36 ]
[ "nonn", "easy" ]
A367951
[ 1, 3, 1, 3, 3, 5, 1, 3, 1, 3, 3, 5, 1, 3, 3, 5, 3, 5, 5, 7, 1, 3, 1, 3, 3, 5, 1, 3, 1, 3, 3, 5, 1, 3, 3, 5, 3, 5, 5, 7, 1, 3, 1, 3, 3, 5, 1, 3, 3, 5, 3, 5, 5, 7, 1, 3, 3, 5, 3, 5, 5, 7, 3, 5...
[ "nonn" ]
A269281
[ 0, 2598156, 938176344, 279339197256, 75556007986536, 19356924219624936, 4786284820998999000, 1.1542280643583899e+21, 2.7321010659601015e+23, 6.374505513328973e+25, 1.4703244384392257e+28 ]
[ "nonn" ]
A214097
[ 8, 1, 0, 4, 1, 0, 2, 8, 0, 6, 9, 6, 7, 5, 8, 2, 1, 7, 3, 8, 8, 9, 1, 8, 7, 6, 6, 8, 3, 3, 0, 1, 5, 8, 0, 1, 4, 3, 4, 0, 7, 4, 7, 1, 9, 7, 6, 4, 1, 5, 8, 8, 8, 9, 1, 1, 4, 0, 3, 3, 9, 8, 9, 8...
[ "nonn", "cons" ]
A104878
[ 1, 1, 1, 1, 2, 1, 1, 3, 3, 1, 1, 4, 7, 4, 1, 1, 5, 15, 13, 5, 1, 1, 6, 31, 40, 21, 6, 1, 1, 7, 63, 121, 85, 31, 7, 1, 1, 8, 127, 364, 341, 156, 43, 8, 1, 1, 9, 255, 1093, 1365, 781, 259, 57, 9, 1, 1, 10, ...
[ "easy", "nonn", "tabl" ]
A190834
[ 0, 0, 1, 15743, 312841383, 10691055854826, 628262652845622300 ]
[ "nonn" ]
A025415
[ 14, 62, 101, 161, 206, 314, 341, 446, 689, 734, 854, 1106, 1154, 1286, 1454, 1781, 1889, 2054, 2141, 2609, 2966, 3134, 3461, 3449, 3506, 4241, 4289, 4781, 5066, 4826, 5381, 5561, 7686, 7094, 6254, 7829, 8186, 8069, 8609, 8126, 8774, 9...
[ "nonn" ]
A060267
[ 2, 2, 4, 4, 2, 4, 4, 2, 4, 4, 6, 6, 6, 2, 6, 6, 6, 4, 4, 2, 4, 4, 6, 6, 6, 6, 6, 6, 2, 6, 6, 6, 4, 4, 2, 6, 6, 6, 4, 4, 6, 6, 6, 8, 8, 8, 8, 4, 4, 2, 4, 4, 2, 4, 4, 14, 14, 14, 14, 14, 14, 14, ...
[ "nonn" ]
A144078
[ 0, 2, 0, 2, 0, 2, 0, 2, 0, 4, 2, 4, 2, 2, 0, 2, 0, 4, 2, 2, 0, 4, 2, 4, 2, 2, 0, 4, 2, 2, 0, 2, 0, 4, 2, 4, 2, 6, 4, 4, 2, 6, 4, 2, 0, 4, 2, 4, 2, 2, 0, 6, 4, 4, 2, 6, 4, 4, 2, 4, 2, 2, 0, 2...
[ "base", "nonn" ]
A023389
[ 7, 9, 11, 13, 15, 19, 23, 29, 37, 47, 59, 93, 137, 211, 343, 729, 1513, 3133, 8077, 21435, 70255, 243939, 1085583, 5931677, 43738095, 406863821, 4668281037, 71095945599, 1434858502437, 47306783952687, 2415226651498341, 204771657238889280 ]
[ "nonn", "base" ]
A104260
[ 0, 3, 5, 7, 2, 4, 8, 10, 3, 9, 4, 10, 1, 3, 7, 8, 14, 1, 7, 8, 10, 16, 3, 9, 16, 2, 4, 8, 10, 5, 8, 5, 11, 13, 10, 7, 13, 4, 8, 11, 17, 2, 11, 13, 17, 19, 2, 3, 7, 9, 6, 12, 1, 6, 12, 3, 9, 8, 14, 1...
[ "nonn", "base" ]
A154912
[ 1, 4, 8, 5, 3, 5, 7, 2, 5, 5, 2, 1, 5, 1, 8, 1, 4, 0, 4, 1, 2, 3, 2, 7, 7, 4, 1, 2, 3, 5, 1, 1, 0, 7, 6, 0, 1, 5, 8, 4, 2, 1, 2, 9, 8, 5, 1, 4, 6, 3, 9, 8, 8, 9, 0, 1, 3, 0, 3, 9, 4, 9, 8, 2...
[ "nonn", "cons" ]
A240324
[ 6, 37, 455, 3374, 21455, 189549, 1190246, 8903613, 70945972, 460466581, 3565876476, 26437586127, 180411185989, 1394924206374, 9999389423346, 71022206087648, 538759260350717, 3826996325512698, 27847080935840984 ]
[ "nonn" ]
A302138
[ 1, 8, 3, 2, 5, 24, 7, 8, 3, 40, 11, 6, 13, 56, 15, 2, 17, 24, 19, 10, 21, 88, 23, 24, 5, 104, 3, 14, 29, 120, 31, 8, 33, 136, 35, 6, 37, 152, 39, 40, 41, 168, 43, 22, 15, 184, 47, 6, 7, 40, 51, 26, 53, 24, 55...
[ "nonn", "easy", "mult" ]
A019349
[ 5, 17, 19, 31, 37, 41, 47, 53, 71, 83, 107, 131, 139, 191, 193, 199, 211, 223, 227, 233, 269, 281, 283, 307, 311, 317, 337, 347, 367, 383, 389, 397, 409, 421, 487, 491, 509, 523, 547, 563, 569, 593, 599, 601, 647, 653, 659, ...
[ "nonn" ]
A203265
[ 1, 5, 22, 125, 576, 3554, 16843, 103917, 521338, 3189600, 15813205, 101516930, 501568809, 3154939135, 16288999167, 101770328205, 513944896547, 3322082384450, 16707380500562, 106553006536680, 554390049927421, 3479202589748077, 17774723219041838 ]
[ "nonn" ]
A020287
[ 15, 217, 341, 1261, 2701, 3661, 6541, 6697, 7613, 13213, 16213, 22177, 23653, 23959, 31417, 50117, 61777, 63139, 67721, 76301, 77421, 79381, 80041, 102341, 113491, 115231, 145993, 160147, 163073, 164737, 170941, 178709, 197209, 210817, 249631, 26...
[ "nonn" ]
A041571
[ 1, 2, 5, 27, 59, 145, 4989, 10123, 25235, 136298, 297831, 731960, 25184471, 51100902, 127386275, 688032277, 1503450829, 3694933935, 127131204619, 257957343173, 643045890965, 3473186797998, 7589419486961, 18652025771920, 641758295732241, 1302168617236402 ]
[ "nonn", "frac", "easy" ]
A236009
[ 88, 508, 508, 2960, 4568, 2960, 17464, 41608, 41608, 17464, 104112, 389520, 587908, 389520, 104112, 626480, 3726296, 8623452, 8623452, 3726296, 626480, 3800832, 36383144, 130105204, 199639388, 130105204, 36383144, 3800832, 23225504 ]
[ "nonn", "tabl" ]
A024423
[ 1, 2, 3, 6, 11, 26, 61, 160, 445, 1336, 4270, 14523, 52284, 198675, 794062, 3328479, 14594210, 66779087, 318205949, 1575994319, 8098891281, 43115440254, 237435483660, 1350777074572, 7928871324291, 47965914249007, 298735745451515 ]
[ "nonn" ]
A382292
[ 8, 24, 27, 32, 40, 54, 56, 64, 72, 88, 96, 104, 108, 120, 125, 135, 136, 152, 160, 168, 184, 189, 192, 200, 224, 232, 243, 248, 250, 264, 270, 280, 288, 296, 297, 312, 320, 328, 343, 344, 351, 352, 360, 375, 376, 378, 392, ...
[ "nonn", "easy" ]
A345762
[ 1, -1, -1, 2, 0, 29, -135, 727, -1967, -6074, 94510, 1548051, -41361089, 408842095, 213929807, -41951737904, 130060640466, 10569226878107, -229371598130229, 3327344803563111, -31418096993670380, -383829978086171140, 17799865170898698000, 220582224147105680000 ]
[ "sign" ]
A099024
[ 10, 650, 986, 18850, 51410, 114610, 223450, 79186, 653050, 1018810, 1520210, 2187250, 610586, 4153250, 5527210, 7216810, 9267050, 2345186, 14644450, 18076610, 22079410, 26712850, 6407986, 38126650, 45042010, 52858010 ]
[ "nonn" ]
A323902
[ 0, 1, 1, 2, 1, 3, 1, 3, 2, 4, 1, 5, 1, 5, 3, 4, 1, 5, 1, 7, 4, 6, 1, 7, 2, 7, 3, 9, 1, 8, 1, 5, 5, 8, 3, 8, 1, 9, 6, 10, 1, 11, 1, 11, 5, 10, 1, 9, 2, 7, 7, 13, 1, 7, 4, 13, 8, 11, 1, 13, 1, 12,...
[ "nonn" ]
A325350
[ 1, 1, 2, 3, 4, 6, 8, 10, 13, 17, 21, 26, 32, 38, 46, 56, 66, 78, 92, 106, 124, 145, 166, 191, 220, 249, 284, 325, 366, 413, 468, 523, 586, 659, 733, 817, 913, 1011, 1121, 1245, 1373, 1515, 1674, 1838, 2020, 2223, 2433, 266...
[ "nonn" ]
A001124
[ 23, 47, 73, 97, 103, 157, 167, 193, 263, 277, 307, 383, 397, 433, 503, 577, 647, 673, 683, 727, 743, 863, 887, 937, 967, 983, 1033, 1093, 1103, 1153, 1163, 1223, 1367, 1487, 1543, 1583, 1607, 1777, 1823, 1847, 1933, 1993, 2003, 20...
[ "nonn" ]
A104722
[ 1, 2, 3, 4, 7, 10, 19, 28, 56, 84, 174, 264, 561, 858, 1859, 2860, 6292, 9724, 21658, 33592, 75582, 117572, 266798, 416024, 950912, 1485800, 3417340, 5348880, 12369285, 19389690, 45052515, 70715340, 165002460, 259289580, 607283490 ]
[ "easy", "nonn" ]
A349374
[ 1, 3, 5, 4, 8, 15, 11, 6, 12, 24, 17, 20, 20, 33, 42, 7, 26, 36, 29, 32, 58, 51, 35, 30, 29, 60, 34, 44, 44, 126, 47, 9, 90, 78, 94, 48, 56, 87, 106, 48, 62, 174, 65, 68, 110, 105, 71, 35, 54, 87, 138, 80, 80, ...
[ "nonn" ]
A103068
[ 1, 5, 11, 12, 17, 28, 46, 48, 61, 73, 138, 178, 213, 405, 762, 1053, 1157, 1427, 2865, 3148, 3615, 13447, 48081 ]
[ "more", "nonn" ]
A215293
[ 1, 2, 6, 280, 23100, 85765680, 577185873264, 346915095471584640, 3.811342305569592e+23, 6.214471168873014e+31, 1.8592619468814454e+40, 1.2365528086934298e+51, 1.512139382147452e+62 ]
[ "nonn" ]
A068984
[ 1, 9, 13, 45, 21, 117, 29, 173, 94, 189, 45, 585, 53, 261, 273, 573, 69, 846, 77, 945, 377, 405, 93, 2249, 246, 477, 526, 1305, 117, 2457, 125, 1725, 585, 621, 609, 4230, 149, 693, 689, 3633, 165, 3393, 173, 2025, 1974, 837, ...
[ "mult", "nonn" ]
A062993
[ 1, 1, 1, 2, 1, 1, 5, 3, 1, 1, 14, 12, 4, 1, 1, 42, 55, 22, 5, 1, 1, 132, 273, 140, 35, 6, 1, 1, 429, 1428, 969, 285, 51, 7, 1, 1, 1430, 7752, 7084, 2530, 506, 70, 8, 1, 1, 4862, 43263, 53820, 23751, 5481, 819, 92, ...
[ "nonn", "easy", "tabl" ]
A040693
[ 26, 1, 4, 1, 52, 1, 4, 1, 52, 1, 4, 1, 52, 1, 4, 1, 52, 1, 4, 1, 52, 1, 4, 1, 52, 1, 4, 1, 52, 1, 4, 1, 52, 1, 4, 1, 52, 1, 4, 1, 52, 1, 4, 1, 52, 1, 4, 1, 52, 1, 4, 1, 52, 1, 4, 1, 52, 1, 4, 1, 5...
[ "nonn", "cofr", "easy", "mult" ]
A335728
[ 0, 2, 0, 6, 4, 12, 12, 30, 36, 60, 80, 132, 180, 264, 360, 522, 712, 990, 1344, 1844, 2472, 3324, 4420, 5892, 7764, 10212, 13344, 17400, 22556, 29160, 37524, 48166, 61560, 78456, 99648, 126234, 159396, 200740, 252096, 315828 ]
[ "nonn" ]
A101219
[ 353, 3511, 3517, 3529, 3541, 3547, 3559, 3571, 3583, 35107, 35149, 35227, 35251, 35257, 35281, 35311, 35317, 35353, 35401, 35419, 35449, 35461, 35491, 35509, 35521, 35569, 35593, 35617, 35677, 35797, 35809, 35839, 35863, 35911, 35977 ]
[ "nonn", "base", "easy" ]