id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A270153
[ 1, 4, 32, 172, 804, 3209, 13552, 53700, 217216, 868181, 3483608, 13943208, 55792533, 223168792, 892715048, 3571004012 ]
[ "nonn", "more" ]
A033387
[ 67, 33, 22, 16, 13, 11, 9, 8, 7, 6, 6, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, ...
[ "easy", "nonn" ]
A048977
[ 3, 7, 13, 19, 31, 61, 127, 127, 331, 307, 307, 631, 1801, 1723, 3169, 1093, 1723, 3571, 1093, 3221, 5419, 3541, 3541, 8269, 5113, 5113, 13267, 8011, 8011, 16651, 10303, 19441, 10303, 24571, 17293, 17293, 28057, 30103, 55897, 28057, 5922...
[ "nonn" ]
A319474
[ 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 2, 3, 5, 7, 11, 15, 22, 29, 40, 51, 68, 85, 109, 134, 167, 200, 244, 286, 341, 395, 460, 523, 600, 671, 756, 835, 926, 1008, 1103, 1185, 1280, 1360, 1450, 1524, 1609, 1673, 1748, 1803, ...
[ "nonn", "base" ]
A129150
[ 8, 12, 16, 32, 80, 176, 368, 752, 1520, 3424, 8592, 20096, 70464, 235072, 705280, 3023616, 13223680, 55540736, 278539264, 1392697344, 9541095424, 58609614848, 410267320320, 3397142953984, 24143851798528, 176071227916288, 1232666139967488, 9523075842834432 ]
[ "nonn" ]
A324488
[ 1, 0, 63, 124, 1330, 4032, 24388, 91000, 438912, 1770230, 7880598, 32763780, 141420760, 594798932, 2537715150, 10720674000, 45537538410, 192699485568, 817138135548, 3460078306440, 14662949297724, 62103832718202, 263115950765038, 1114512523173000, 4721424167330750 ]
[ "nonn" ]
A123432
[ 1, 2, 4, 11, 26, 80, 248, 899, 3441, 15081 ]
[ "nonn", "more" ]
A016474
[ 3, 1, 4, 1, 5, 11, 2, 57, 1, 350, 1, 5, 4, 6, 1, 8, 1, 1, 2, 2, 2, 3, 3, 2, 9, 1, 3, 3, 1, 3, 2, 25, 1, 2, 2, 24, 8, 1, 1, 1, 11, 1, 3, 6, 1, 13, 1, 3, 1, 1, 1, 1, 1, 21, 2, 1, 1, 2, 2, 1, 2, 7,...
[ "nonn", "cofr" ]
A247865
[ 2, 4, 5, 7, 8, 14, 17, 19, 22, 23, 26, 34, 46, 59, 70, 86, 100, 101, 118, 148, 151, 160, 200, 281, 317, 343, 682, 842, 853, 871, 1244, 1988, 2170, 2389, 2728, 3049, 3661, 4678, 9169, 12767, 16072, 19808, 20710, 33142, 33442 ]
[ "nonn", "more" ]
A358150
[ 1, 10, 3, 6, 9, 12, 15, 18, 35, 14, 11, 24, 27, 48, 23, 20, 39, 36, 61, 32, 29, 52, 25, 28, 51, 80, 47, 76, 43, 70, 105, 38, 63, 34, 59, 56, 87, 126, 53, 84, 49, 78, 45, 74, 71, 106, 67, 64, 97, 60, 93, 90, 55, ...
[ "nonn", "fini", "walk" ]
A126270
[ 8, 0, 0, 32, 32, 32, 16, 16, 32, 32, 32, 32, 32, 32, 16, 32, 16, 32, 32, 32, 32, 32, 32, 16, 32, 32, 32, 32, 32, 32, 16, 32, 32, 32, 0, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 8, 16, 32, 32, 32, 32, 32,...
[ "nonn" ]
A081136
[ 0, 0, 1, 18, 216, 2160, 19440, 163296, 1306368, 10077696, 75582720, 554273280, 3990767616, 28298170368, 198087192576, 1371372871680, 9403699691520, 63945157902336, 431629815840768, 2894458765049856, 19296391766999040 ]
[ "easy", "nonn" ]
A262632
[ 1, 13, 1093, 167309, 1033369, 7883077, 974928839, 685325330447, 384532463201461, 36815155568146290, 229925116170082520000, 1.4801498805103225e+23, 1.2100604707837078e+25, 1.1556007084252548e+27, 1.0061978594574546e+30 ]
[ "nonn", "easy", "base" ]
A065077
[ 1, 1, 1, 1, 3, 5, 1, 6, 21, 42, 1, 10, 56, 210, 462, 1, 15, 120, 660, 2574, 6006, 1, 21, 225, 1650, 9009, 36036, 87516, 1, 28, 385, 3575, 25025, 136136, 554268, 1385670, 1, 36, 616, 7007, 60060, 408408, 2217072, 9145422, 2337163...
[ "nonn", "tabl" ]
A188384
[ 11, 31, 41, 61, 71, 101, 131, 151, 181, 251, 311, 401, 491, 541, 571, 601, 631, 701, 761, 941, 971, 1531, 1811, 2311, 2411, 2731, 3331 ]
[ "nonn", "fini", "full" ]
A288600
[ 0, 1, 0, 0, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, 0, 1, 0, 1, 0, 0, 1, 1, 1, 0, 0, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 1, 1, 1, 0, 0, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, 0, 1, 0, 1, 0...
[ "nonn", "easy" ]
A109488
[ 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4224, 5040, 24192, 12544, 69888, 30366, 69888, 12544, 24192, 5040, 4224, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1 ]
[ "nonn", "fini", "full" ]
A338473
[ 8, 10, 12, 13, 14, 15, 16, 18, 19, 20, 21, 23, 24, 25, 27, 28, 29, 30, 31, 34, 35, 36, 39, 40, 41, 42, 44, 45, 46, 49, 50, 53, 55, 56, 58, 59, 60, 63, 64, 70, 74, 84, 98, 125, 127, 130, 131, 135, 136, 142, 146, 147...
[ "nonn", "base" ]
A049039
[ 1, 2, 4, 5, 7, 9, 11, 12, 14, 16, 18, 20, 22, 24, 26, 27, 29, 31, 33, 35, 37, 39, 41, 43, 45, 47, 49, 51, 53, 55, 57, 58, 60, 62, 64, 66, 68, 70, 72, 74, 76, 78, 80, 82, 84, 86, 88, 90, 92, 94, 96, 98, 100, 102...
[ "easy", "nonn", "nice", "tabf" ]
A019485
[ 2, 5, 12, 28, 65, 150, 346, 797, 1836, 4228, 9737, 22422, 51634, 118901, 273804, 630508, 1451921, 3343446, 7699210, 17729549, 40827180, 94015828, 216497369, 498544854, 1148036962, 2643671525, 6087782412, 14018796988, 32282144225, 74338535190, 171184967866 ...
[ "nonn", "easy" ]
A193428
[ 56, 217, 394, 550, 686, 802, 898, 974, 1030, 1066, 1084, 1103, 1126, 1169, 1232, 1315, 1418, 1541, 1684, 1847, 2080, 2353, 2618, 2852, 3058, 3232, 3377, 3491, 3576, 3629, 3656, 3683, 3710, 3744, 3808, 3901, 4025, 4178, 4363, 4576, 4814,...
[ "nonn", "base" ]
A324384
[ 0, 1, 2, 1, 4, 1, 6, 1, 4, 1, 2, 11, 12, 1, 2, 1, 8, 1, 18, 1, 4, 7, 2, 1, 24, 1, 2, 1, 4, 1, 30, 1, 8, 1, 2, 7, 12, 1, 2, 1, 4, 1, 6, 1, 4, 1, 2, 1, 12, 1, 2, 1, 52, 1, 6, 1, 56, 1, 2, 1, 60, 1...
[ "nonn" ]
A289798
[ 1, 5, 22, 93, 387, 1602, 6623, 27377, 113174, 467877, 1934315, 7996978, 33061703, 136686153, 565097958, 2336269341, 9658775347, 39932014114, 165089847535, 682526498529, 2821750872886, 11665888441301, 48229967585083, 199395852702354, 824356889826903 ]
[ "nonn", "easy" ]
A313013
[ 1, 4, 9, 14, 17, 24, 29, 30, 37, 44, 45, 50, 56, 64, 59, 72, 75, 80, 78, 93, 93, 94, 100, 114, 105, 117, 120, 133, 117, 141, 141, 142, 144, 158, 162, 150, 172, 177, 171, 177, 191, 197, 178, 207, 210, 204, 206, 228, 227, ...
[ "nonn" ]
A258084
[ 2, 3, 5, 7, 10, 13, 15, 18, 19, 31, 35, 37, 38, 72, 75, 78, 79, 91, 92, 100, 103, 105, 106, 113, 114, 124, 127, 128, 133, 138, 139, 143, 147, 154, 155, 163, 165, 166, 174, 179, 181, 184, 193, 198, 199, 301, 302, 304, 307...
[ "nonn", "base" ]
A372225
[ 1, 6, 24, 105, 440, 1872, 7917, 33558, 142120, 602085, 2550384, 10803744, 45765161, 193864710, 821223480, 3478759473, 14736260008, 62423801712, 264431463285, 1120149660630, 4745030096456, 20100270061581, 85146110318304, 360684711374400, 1527884955751825 ]
[ "nonn", "easy" ]
A123312
[ 1, 1, 6, 84, 2010, 70596, 3331006, 199417056, 14559631506, 1259526351000, 126308710634414, 14434568970310656, 1854260500658184700, 264771440776810600000, 4.163523370686567e+22 ]
[ "nonn", "more" ]
A172936
[ 1, 18152, 513799394688, 3.4532356028183693e+21, 1.835784677576057e+33, 3.7246115504386073e+46 ]
[ "nonn" ]
A335022
[ 0, 0, 0, -2, 0, 1, 0, -6, 3, 3, 0, -9, 0, 5, 8, -14, 0, 4, 0, -11, 10, 9, 0, -29, 5, 11, 12, -13, 0, 5, 0, -30, 14, 15, 12, -30, 0, 17, 16, -39, 0, 9, 0, -17, 32, 21, 0, -69, 7, 18, 20, -19, 0, 13, 16, -49,...
[ "sign" ]
A087324
[ 2, 7, 14, 22, 34, 65, 77, 85, 93, 97, 102, 105, 106, 114, 133, 134, 138, 161, 165, 205, 206, 214, 218, 221, 222, 234, 253, 254, 258, 262, 265, 275, 278, 301, 302, 305, 306, 314, 345, 354, 357, 365, 377, 413, 414, 437, 438, ...
[ "base", "nonn" ]
A137350
[ 1, -1, 1, 0, 1, -1, -1, 1, 1, -1, 1, 0, -2, -1, 1, 1, 2, -2, 1, -1, 1, -3, -1, 1, 0, 3, 3, -3, 1, -1, -3, 3, -4, -1, 1, 1, -1, 6, 4, -4, 1 ]
[ "uned", "tabl", "sign" ]
A076080
[ 1, 1, 1, 1, 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, 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, 4, 4, 4...
[ "nonn" ]
A288564
[ 1, 1, 2, 11, 183, 30408 ]
[ "nonn", "more" ]
A358715
[ 1, 2, 5, 26, 220, 3622, 105859, 5677789, 553715341, 98404068313, 31850967186980, 18779046566454536, 20167518569123720000, 3.945135969213438e+22 ]
[ "nonn", "more" ]
A334306
[ 60, 501, 58848, 3296790, 248516640, 24173031960, 2940529011840, 436606222187520, 77604399434419200, 16251945275067163000, 3.957141527033037e+21, 1.107716943231413e+24, 3.5306230315115456e+26, 1.2705923639070001e+29 ]
[ "nonn" ]
A017675
[ 1, 65, 730, 4161, 15626, 23725, 117650, 266305, 532171, 101569, 1771562, 506255, 4826810, 3823625, 2281396, 17043521, 24137570, 34591115, 47045882, 32509893, 85884500, 57575765, 148035890, 97201325, 244156251, 12067025, 387952660, 244770825, 594823322 ]
[ "nonn", "frac" ]
A304580
[ 1, 8, 3, 6, 5, 4, 7, 2, 9, 0, 7, 2, 5, 4, 3, 6, 1, 8, 3, 6, 5, 4, 7, 2, 9, 0, 7, 2, 5, 4, 3, 6, 1, 8, 3, 6, 5, 4, 7, 2, 9, 0, 7, 2, 5, 4, 3, 6, 1, 8, 3, 6, 5, 4, 7, 2, 9, 0, 7, 2, 5, 4, 3, 6...
[ "nonn", "easy" ]
A068045
[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 21, 105, 316, 705, 1297, 2181, 3837, 7596, 15962, 32998, 66173, 131379, 261910, 524012, 1048568, 2097228, 4194318, 8388600, 16777216, 33554434, 67108864, 134217728, 268435456, 536870912, 1073741824, 2147483...
[ "nonn", "easy" ]
A048683
[ 1, 2, 3, 4, 5, 7, 8, 9, 11, 12, 13, 16, 17, 18, 19, 23, 24, 31, 32, 33, 35, 36, 40, 41, 42, 55, 56, 57, 59, 65, 71, 72, 73, 80, 84, 100, 108, 109, 112, 113, 114, 115, 131, 132, 133, 155, 160, 161, 162, 163, 168, 18...
[ "nonn" ]
A209723
[ 6, 7, 8, 10, 12, 16, 20, 28, 36, 52, 68, 100, 132, 196, 260, 388, 516, 772, 1028, 1540, 2052, 3076, 4100, 6148, 8196, 12292, 16388, 24580, 32772, 49156, 65540, 98308, 131076, 196612, 262148, 393220, 524292, 786436, 1048580, 1572868, 209...
[ "nonn" ]
A025542
[ 1, 1, 4, 37, 265, 790, 8705, 226225, 226253, 3846175, 73077955, 73077790, 1680790160, 8403949513, 25211849540, 1462287258305, 45330905127575, 45330905096635, 45330905104591, 1677243488794285, 1677243488813665 ]
[ "nonn" ]
A189945
[ 5, 15, 63, 384, 2393, 13569, 72744, 393006, 2206620, 12731028, 73789033, 425385252, 2445427072, 14098065430, 81698759400, 475327637850, 2770724256604, 16165039535028, 94402460826924, 552050600817600, 3233027830180059 ]
[ "nonn" ]
A385961
[ 9, 8, 1, 7, 2, 8, 0, 8, 6, 8, 3, 4, 4, 0, 0, 1, 8, 7, 3, 3, 6, 3, 8, 0, 2, 9, 4, 0, 2, 1, 8, 5, 0, 8, 5, 0, 3, 6, 0, 5, 7, 3, 6, 7, 9, 7, 2, 3, 4, 6, 5, 4, 1, 5, 4, 0, 4, 9, 5, 7, 4, 5, 5, 5...
[ "nonn", "cons" ]
A374690
[ 1, 1, 2, 3, 6, 10, 19, 34, 63, 115, 211, 387, 710, 1302, 2385, 4372, 8009, 14671, 26867, 49196, 90069, 164884, 301812, 552406, 1011004, 1850209, 3385861, 6195832, 11337470, 20745337, 37959030, 69454669, 127081111, 232517129, 425426211, 778376479,...
[ "nonn" ]
A341487
[ 2, 1, 5, 6, 3, 4, 8, 7, 17, 18, 22, 21, 20, 19, 23, 24, 9, 10, 14, 13, 12, 11, 15, 16, 26, 25, 29, 30, 27, 28, 32, 31, 65, 66, 70, 69, 68, 67, 71, 72, 82, 81, 85, 86, 83, 84, 88, 87, 74, 73, 77, 78, 75, 76, 8...
[ "nonn", "base" ]
A333047
[ 1, 1, 1, 4, 13, 31, 76, 218, 645, 1849, 5281, 15346, 44980, 131704, 385568, 1131874, 3331429, 9819405, 28977079, 85633438, 253424053, 750895163, 2227288196, 6613217348, 19654450476, 58463536356, 174041552556, 518488451716, 1545686334184, 4610827520500 ]
[ "nonn" ]
A013819
[ 12167, 3404825447, 952809757913927, 266635235464391230000, 7.461547092759071e+25, 2.088046799984791e+31, 5.843211045545439e+36, 1.6351700221964813e+42 ]
[ "nonn", "easy" ]
A233430
[ 1, 27950, 7845888732, 2440547587954985, 761939299852168600000, 2.3790128683188306e+26, 7.4280211349600195e+31, 2.3192594468009754e+37, 7.241449792690454e+42, 2.2610059884020647e+48 ]
[ "nonn" ]
A206892
[ 33, 1089, 20129, 330951, 5963040, 111550389, 2067672443, 37988878275, 698017127422, 12848172794534, 236570382445377, 4354636068325921, 80147467353233650, 1475176781227114500, 27152663805860160000 ]
[ "nonn" ]
A346872
[ 1, 2, 3, 1, 5, 2, 1, 9, 3, 2, 1, 1, 17, 6, 3, 2, 2, 1, 1, 33, 11, 6, 4, 2, 2, 2, 1, 2, 1, 65, 22, 11, 7, 5, 3, 3, 2, 2, 2, 1, 2, 1, 1, 1, 129, 43, 22, 13, 9, 7, 5, 4, 3, 3, 3, 2, 2, 1, 2, 1, 2, ...
[ "nonn", "tabf" ]
A139830
[ 7, 23, 47, 103, 127, 167, 223, 263, 367, 383, 463, 487, 503, 607, 647, 727, 743, 823, 863, 887, 967, 983, 1063, 1087, 1103, 1223, 1303, 1327, 1367, 1423, 1447, 1487, 1543, 1567, 1583, 1607, 1663, 1783, 1823, 1847, 2063, 2087, 2143, ...
[ "nonn", "easy" ]
A254480
[ 170504, 603895, 2289173, 8704471, 24234594, 71273789, 191995191, 525287732, 1379347935, 3717747517, 9894244375, 26921990051, 73220063771, 200786731170, 549584136687, 1507079827260, 4124541644442, 11290452671871, 30880436616666 ]
[ "nonn" ]
A170666
[ 1, 33, 1056, 33792, 1081344, 34603008, 1107296256, 35433480192, 1133871366144, 36283883716608, 1161084278931456, 37154696925806590, 1188950301625811000, 38046409652025950000, 1.2174851088648304e+21, 3.895952348367457e+22 ]
[ "nonn" ]
A287027
[ 100, 961, 36, 14017536, 484, 49, 36, 134689, 354025, 80089, 443556, 121, 47524, 7744, 100, 700569, 344956329, 48841, 5329, 144, 324, 39601, 22801, 8649, 239438955625, 12250000, 197136, 222784, 147456, 319225, 316969, 24649, 576, 2975625, 7396, 21...
[ "nonn" ]
A058126
[ 1, 0, 0, 18, 240, 3100, 46620, 823494, 16777152, 387420408, 9999999900, 285311670490, 8916100448112, 302875106592084, 11112006825557820, 437893890380859140, 18446744073709552000 ]
[ "easy", "nonn" ]
A385662
[ 1, 2, 1, 2, 1, 3, 1, 3, 2, 3, 1, 4, 1, 3, 1, 4, 1, 5, 1, 4, 1, 3, 1, 6, 2, 3, 3, 4, 1, 5, 1, 5, 1, 3, 1, 6, 1, 3, 1, 6, 1, 5, 1, 4, 2, 3, 1, 8, 2, 5, 1, 4, 1, 7, 1, 6, 1, 3, 1, 8, 1, 3, 2, 6...
[ "nonn" ]
A248245
[ 4, 9, 84, 11142, 474347339, 1448582974451426300, 2.5267620188090246e+36, 2.8249016389028466e+73 ]
[ "nonn" ]
A209534
[ 5, 9, 9, 17, 25, 17, 33, 65, 65, 33, 65, 193, 257, 193, 65, 129, 513, 1025, 1025, 513, 129, 257, 1537, 4097, 6145, 4097, 1537, 257, 513, 4097, 16385, 32769, 32769, 16385, 4097, 513, 1025, 12289, 65537, 196609, 262145, 196609, 65537,...
[ "nonn", "tabl" ]
A222406
[ 1, 2, 3, 5, 10, 14, 24, 38, 65 ]
[ "nonn", "more", "hard", "nice" ]
A207635
[ 1, 2, 5, 2, 11, 9, 2, 23, 29, 13, 2, 47, 81, 55, 17, 2, 95, 209, 191, 89, 21, 2, 191, 513, 591, 369, 131, 25, 2, 383, 1217, 1695, 1329, 631, 181, 29, 2, 767, 2817, 4607, 4353, 2591, 993, 239, 33, 2, 1535, 6401, 12031, ...
[ "nonn", "tabf" ]
A217151
[ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 1, 4, 7, 25 ]
[ "nonn", "hard" ]
A201313
[ 71, 431, 719, 1511, 2591, 4751, 6551, 7559, 9791, 13679, 16631, 21599, 23399, 29231, 31319, 33479, 42839, 47951, 61991, 68111, 95471, 110879, 123191, 131759, 149759, 154439, 159191, 184031, 194471, 199799, 210671, 221831, 227519, 233279 ]
[ "nonn", "easy" ]
A327657
[ 1, 1, 2, 1, 2, 2, 2, 1, 3, 2, 2, 2, 2, 2, 3, 1, 2, 3, 2, 2, 4, 2, 2, 2, 3, 2, 4, 2, 2, 3, 2, 1, 3, 2, 3, 3, 2, 2, 4, 2, 2, 4, 2, 2, 4, 2, 2, 2, 3, 3, 3, 2, 2, 4, 3, 2, 4, 2, 2, 3, 2, 2, 6, 1...
[ "nonn" ]
A052578
[ 0, 4, 8, 24, 96, 480, 2880, 20160, 161280, 1451520, 14515200, 159667200, 1916006400, 24908083200, 348713164800, 5230697472000, 83691159552000, 1422749712384000, 25609494822912000, 486580401635328000, 9731608032706560000, 204363768686837760000 ]
[ "easy", "nonn" ]
A315227
[ 1, 6, 10, 14, 22, 20, 30, 36, 42, 40, 50, 58, 50, 66, 72, 78, 70, 86, 94, 80, 102, 108, 114, 100, 122, 130, 110, 138, 144, 150, 130, 158, 166, 140, 174, 180, 186, 160, 194, 202, 170, 210, 216, 222, 190, 230, 238, 200, 24...
[ "nonn" ]
A094123
[ 1, 7, 6, 0, 9, 0, 2, 5, 0, 1, 9, 1, 7, 8, 1, 3, 3, 7, 1, 4, 2, 8, 9, 8, 0, 7, 2, 9, 8, 6, 1, 9, 4, 1, 0, 3, 4, 9, 3, 1, 0, 8, 1, 6, 7, 3, 7, 0, 7, 7, 0, 7, 5, 3, 8, 1, 5, 1, 4, 3, 9, 3, 9, 7...
[ "cons", "nonn" ]
A212112
[ 0, 1, 2, 3, 14, 17, 694, 711, 7093, 29083, 65259, 94342, 1480389, 3055120, 38141829, 41196949, 903277758, 944474707, 16959347777, 882830559111, 2665451025110, 3548281584221, 23955140530436 ]
[ "nonn", "frac" ]
A028142
[ 1, 31, 617, 10067, 146913, 1999083, 25952089, 325901779, 3994115345, 48056935355, 570022255881, 6685284487011, 77695022872897, 896253234623947, 10275099966705592, 117190651899653360, 1330751148294893000 ]
[ "nonn" ]
A263162
[ 1, 15, 2101, 717795, 328504401, 172924236255, 98788351385893, 59547100211425780, 37279994808479610000, 2.400688810207572e+22, 1.580013313720791e+25, 1.0580854797781352e+28, 7.186571606168295e+30, 4.9388266968867047e+33 ]
[ "nonn" ]
A035175
[ 1, 2, 1, 3, 1, 2, 0, 4, 1, 2, 0, 3, 0, 0, 1, 5, 2, 2, 2, 3, 0, 0, 2, 4, 1, 0, 1, 0, 0, 2, 2, 6, 0, 4, 0, 3, 0, 4, 0, 4, 0, 0, 0, 0, 1, 4, 2, 5, 1, 2, 2, 0, 2, 2, 0, 0, 2, 0, 0, 3, 2, 4, 0, 7...
[ "nonn", "mult" ]
A195125
[ 0, 2, 4, 6, 8, 10, 12, 14, 15, 17, 19, 21, 23, 25, 27, 28, 30, 32, 34, 36, 38, 40, 41, 43, 45, 47, 49, 51, 53, 54, 56, 58, 60, 62, 64, 66, 67, 69, 71, 73, 75, 77, 79, 80, 82, 84, 86, 88, 90, 92, 93, 95, 97, 99,...
[ "nonn" ]
A310637
[ 1, 4, 6, 14, 16, 26, 24, 36, 32, 42, 44, 46, 52, 54, 60, 64, 72, 82, 76, 90, 86, 98, 90, 106, 94, 114, 104, 126, 128, 124, 140, 134, 148, 142, 152, 146, 160, 152, 172, 182, 164, 194, 174, 206, 182, 210, 190, 214, 196, ...
[ "nonn" ]
A239720
[ 109, 1009, 10009, 10099, 100999, 1000099, 1000999, 1000000009, 1000009999, 1000099999, 1009999999, 10000000999, 10000099999, 10999999999, 100999999999, 1000000009999, 1000000999999, 1099999999999, 10000000000099, 10009999999999 ]
[ "nonn" ]
A059628
[ 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 50, 55, 50, 55, 50, 55, 50, 55, 50, 55, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 50, 55, 50, 55, 50, 55, 50, 55, 50, 55, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 50, 55, 50, 55, 50, 55, 50, 55, ...
[ "base", "nonn" ]
A275112
[ 0, 1, 6, 20, 52, 112, 215, 375, 613, 948, 1407, 2013, 2799, 3793, 5034, 6554, 8398, 10603, 13220, 16290, 19870, 24006, 28761, 34185, 40347, 47302, 55125, 63875, 73633, 84463, 96452, 109668, 124204, 140133, 157554, 176544, 197208, 219628, 24...
[ "nonn", "easy" ]
A198691
[ 9, 69, 489, 3429, 24009, 168069, 1176489, 8235429, 57648009, 403536069, 2824752489, 19773267429, 138412872009, 968890104069, 6782230728489, 47475615099429, 332329305696009, 2326305139872069, 16284135979104488, 113988951853731420, 797922662976120000, 5585458640832840000 ]
[ "nonn", "easy" ]
A317195
[ 3, 8, 13, 20, 29, 38 ]
[ "nonn", "more" ]
A054758
[ 1, 1, 1, 1, 2, 1, 2, 3, 2, 8, 5, 4, 1, 6, 3, 13, 7, 2, 1, 6, 2, 3, 5, 7, 7, 8, 31, 1, 22, 6, 60, 20, 12, 5, 2, 12, 5, 16, 7, 20, 1, 2, 14, 42, 23, 16, 13, 30, 53, 5, 7, 36, 10, 10, 67, 6, 2, 40, 24, ...
[ "nonn" ]
A310911
[ 1, 4, 7, 14, 17, 26, 27, 36, 34, 44, 40, 50, 50, 60, 63, 72, 75, 84, 81, 90, 84, 96, 93, 104, 107, 118, 121, 130, 128, 138, 130, 142, 138, 150, 151, 162, 165, 176, 173, 184, 176, 190, 185, 196, 197, 208, 209, 220, 216, ...
[ "nonn" ]
A047464
[ 0, 2, 4, 8, 10, 12, 16, 18, 20, 24, 26, 28, 32, 34, 36, 40, 42, 44, 48, 50, 52, 56, 58, 60, 64, 66, 68, 72, 74, 76, 80, 82, 84, 88, 90, 92, 96, 98, 100, 104, 106, 108, 112, 114, 116, 120, 122, 124, 128, 130, 132, 1...
[ "nonn", "easy" ]
A020709
[ 4, 10, 25, 63, 159, 401, 1011, 2549, 6427, 16205, 40859, 103021, 259755, 654941, 1651355, 4163693, 10498251, 26470077, 66741115, 168279693, 424297003, 1069813853, 2697406939, 6801187117, 17148375179, 43237565181, 109018319419, 274876578253, 693068226283 ]
[ "nonn" ]
A171057
[ 2, 3, 5, 7, 11, 13, 17, 18, 23, 28, 31, 37, 41, 43, 47, 53, 58, 61, 67, 71, 73, 78, 93, 98, 87, 101, 103, 107, 108, 113, 127, 131, 137, 138, 148, 151, 157, 163, 167, 173, 178, 191, 181, 183, 187, 188, 211, 223, 227, 22...
[ "nonn", "base", "easy" ]
A198972
[ 2, 23, 233, 2333, 23333, 233333, 2333333, 23333333, 233333333, 2333333333, 23333333333, 233333333333, 2333333333333, 23333333333333, 233333333333333, 2333333333333333, 23333333333333332, 233333333333333340, 2333333333333333500, 23333333333333330000, 233333333333333340000 ]
[ "nonn", "easy" ]
A286812
[ 104, 103, 101, 97, 89, 73, 41, -23, -151, -407, -919, -1943, -3991, -8087, -16279, -32663, -65431, -130967, -262039, -524183, -1048471, -2097047, -4194199, -8388503, -16777111, -33554327, -67108759, -134217623, -268435351, -536870807, -1073741719, -21474...
[ "sign", "easy" ]
A244830
[ 7, 47, 315, 2187, 14859, 102301, 707567, 4909019, 34131599, 235879457, 1640010727, 11344645093, 78932862607, 546804464049, 3807531069519, 26553509055677, 184619426459623, 1281567860483415, 8934495943129527, 62115641873469910 ]
[ "nonn" ]
A378401
[ 2, 1, 1, 2, 1, 2, 1, 2, 1, 1, 1, 1, 2, 1, 1, 2, 1, 2, 2, 2, 2, 1, 2, 1, 1, 1, 1, 1, 2, 1, 2, 1, 1, 1, 1, 2, 1, 2, 1, 2, 2, 2, 2, 1, 1, 2, 2, 1, 2, 1, 1, 1, 2, 1, 2, 1, 1, 2, 1, 2, 2, 2, 2, 2...
[ "nonn", "tabl" ]
A300549
[ 1, 2, 4, 4, 10, 4, 28, 4, 36, 14, 44, 4, 284, 4, 60, 64, 202, 4, 616, 4, 732, 88, 92, 4, 5740, 22, 108, 112, 1404, 4, 10672, 4, 1828, 136, 140, 144, 42622, 4, 156, 160, 22940, 4, 28024, 4, 3420, 3172, 188, 4, 266524, 3...
[ "nonn" ]
A060890
[ 1, 2, 257, 6562, 65537, 390626, 1679617, 5764802, 16777217, 43046722, 100000001, 214358882, 429981697, 815730722, 1475789057, 2562890626, 4294967297, 6975757442, 11019960577, 16983563042, 25600000001, 37822859362, 54875873537, 78310985282, 110075314177, 152587890626...
[ "nonn", "easy" ]
A022731
[ 1, 7, 42, 203, 889, 3535, 13209, 46551, 156905, 507787, 1588594, 4819003, 14231294, 41007134, 115589904, 319284693, 865781826, 2307766118, 6054769679, 15652436765, 39909873983, 100451866962 ]
[ "nonn" ]
A321563
[ 1, -129, 2188, -16257, 78126, -282252, 823544, -2080641, 4785157, -10078254, 19487172, -35570316, 62748518, -106237176, 170939688, -266321793, 410338674, -617285253, 893871740, -1270094382, 1801914272, -2513845188, 3404825448, -4552442508 ]
[ "sign", "mult" ]
A348287
[ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 12, 22, 23, 24, 25, 26, 27, 28, 29, 30, 13, 23, 33, 34, 35, 36, 37, 38, 39, 40, 14, 24, 34, 44, 45, 46, 47, 48, 49, 50, 15, 25, 35, 45...
[ "nonn", "base" ]
A292457
[ 7, 77, 177, 277, 377, 477, 577, 677, 707, 717, 727, 737, 747, 757, 767, 770, 771, 772, 773, 774, 775, 776, 777, 778, 779, 787, 797, 877, 977, 1077, 1277, 1377, 1477, 1577, 1677, 1707, 1727, 1737, 1747, 1757, 1767, 1770, 1772, 1773...
[ "nonn", "base" ]
A094964
[ 3, 8, 2, 8, 6, 5, 6, 1, 6, 2, 0, 5, 1, 1, 7, 6, 3, 4, 9, 2, 1, 6, 8, 0, 7, 8, 5, 8, 1, 2, 3, 2, 7, 1, 5, 3, 8, 3, 4, 1, 3, 8, 0, 6, 0, 0, 7, 6, 7, 2, 4, 7, 4, 6, 7, 8, 8, 4, 6, 4, 8, 6, 7, 7...
[ "cons", "easy", "nonn", "base" ]
A166459
[ 199, 289, 298, 379, 388, 397, 469, 478, 487, 496, 559, 568, 577, 586, 595, 649, 658, 667, 676, 685, 694, 739, 748, 757, 766, 775, 784, 793, 829, 838, 847, 856, 865, 874, 883, 892, 919, 928, 937, 946, 955, 964, 973, 982, 991, 1...
[ "nonn", "base", "easy" ]
A171482
[ 1, 1, 1, 2, 2, 2, 2, 3, 4, 4, 4, 4, 4, 5, 5, 6, 6, 6, 6, 6, 6, 7, 8, 9, 9, 9, 10, 10, 10, 10, 10, 10, 10, 11, 11, 12, 12, 13, 14, 14, 14, 14, 15, 16, 16, 16, 16, 16, 16, 16, 16 ]
[ "nonn" ]
A247764
[ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 17, 18, 19, 20, 22, 23, 27, 28, 33, 37, 40, 42, 43, 44, 47, 48, 50, 51, 52, 53, 54, 55, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 77, 80, 83, 87, 88...
[ "nonn", "base", "word", "changed" ]
A052273
[ 1, 2, 2, 2, 2, 4, 4, 2, 4, 4, 6, 4, 4, 8, 4, 2, 5, 8, 10, 4, 8, 12, 12, 4, 6, 8, 10, 8, 8, 8, 16, 4, 12, 10, 8, 8, 10, 20, 8, 4, 11, 16, 22, 12, 8, 24, 24, 4, 22, 12, 10, 8, 14, 20, 12, 8, 20, 16, 30,...
[ "nonn", "mult" ]
A301458
[ 1, 1, 3, 13, 51, 201, 825, 3431, 14355, 60493, 256463, 1092268, 4669665, 20029036, 86148373, 371434173, 1604845715, 6946936628, 30121158813, 130795358333, 568709929191, 2475778867547, 10789659781640, 47069225185789, 205524447217185, 898163031782576, 39281124196401...
[ "nonn" ]
A277610
[ 1, 1, 5, 36, 339, 3999, 57388, 977577, 19348425, 436886364, 11084633347, 312102694743, 9653262860564, 325242329821529, 11853828646799152, 464582888781914000, 19481645509391090000, 870252961810204600000, 4.125344536591724e+22, 2.068244310629828e+24, 1.093361765345401e+26, 6....
[ "nonn" ]
A292091
[ 6, 6, 6, 6, 0, 518, 6, 518, 0, 6, 0, 6, 6, 28, 6, 0, 6, 34, 6, 0, 6, 0, 0, 6, 0, 518, 22, 22, 22, 6, 6, 6, 40, 518, 6, 6, 0, 0, 6, 6, 518, 518, 0, 518, 518, 6, 0, 6, 6, 26, 26, 6, 6, 6, 6, 6, 22, 6, 5...
[ "nonn" ]