id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A219250
[ 0, 2, 4, 1, 3, 5, 7, 9, 6, 8, 13, 14, 16, 18, 30, 20, 24, 25, 27, 29, 41, 31, 35, 36, 38, 50, 52, 42, 46, 47, 49, 61, 63, 53, 57, 58, 64, 68, 69, 70, 72, 74, 75, 79, 202, 92, 94, 96, 81, 83, 85, 86, 97, 203, ...
[ "nonn", "base" ]
A081669
[ 1, 3, 7, 15, 35, 83, 205, 521, 1363, 3651, 9977, 27701, 77885, 221133, 632611, 1820375, 5262163, 15266003, 44414953, 129521141, 378427945, 1107447881, 3245329831, 9521616731, 27965113597, 82210390733, 241880335015 ]
[ "easy", "nonn" ]
A321810
[ 1, 1, 730, 1, 15626, 730, 117650, 1, 532171, 15626, 1771562, 730, 4826810, 117650, 11406980, 1, 24137570, 532171, 47045882, 15626, 85884500, 1771562, 148035890, 730, 244156251, 4826810, 387952660, 117650, 594823322, 11406980, 887503682 ]
[ "nonn", "mult" ]
A227483
[ 23529, 1111869, 16608702, 159373080, 1213425084, 8031303684, 48448565652, 273777454260, 1474280952564, 7651723403124, 38578878478452, 190021655079540, 918191706377844, 4366324687656564, 20484111138612852, 94990079602722420, 436088524069815940, 1984521827742566000, 896137836606546...
[ "nonn", "easy" ]
A381903
[ 2, 5, 7, 97, 877, 12979, 203659, 364717, 1681853, 189961939, 189962137, 466446781, 1511085889 ]
[ "nonn", "more" ]
A362929
[ 1, 5, 6, 7, 11, 13, 17, 18, 19, 23, 27, 31, 32, 33, 37, 39, 43, 44, 45, 49, 53, 54, 55, 59, 63, 64, 65, 69, 71, 75, 76, 77, 81, 85, 89, 90, 91, 95, 97, 101, 102, 103, 107, 111, 112, 113, 117, 119, 123, 124, 125, 12...
[ "nonn" ]
A029815
[ 61, 252, 16380, 189280, 1048572, 3937752, 11930464, 30588480, 67108860, 133739676, 255953880, 460605600, 763366240, 1216356120, 1928015424, 2957689280, 4294967292, 6082667640, 8693078940 ]
[ "nonn" ]
A033225
[ 37, 41, 53, 73, 101, 137, 149, 157, 173, 181, 197, 229, 233, 269, 293, 317, 337, 349, 373, 397, 433, 509, 521, 593, 601, 613, 617, 641, 673, 677, 733, 761, 773, 821, 877, 881, 929, 937, 941, 953, 1009, 1033 ]
[ "nonn", "easy" ]
A089487
[ 11, 7, 17, 11, 5, 7, 41, 23, 17, 23, 13, 31, 53, 17, 17, 17, 29, 19, 19, 5, 13, 13, 149, 41, 11, 11, 5, 137, 19, 5, 7, 23, 59, 13, 29, 11, 11, 13, 11, 59, 23, 13, 11, 5, 41, 41, 19, 19, 71, 31, 23, 11, 31, 41, ...
[ "easy", "nonn" ]
A125752
[ 1, 1, 2, 4, 9, 8, 26, 69, 77, 55, 261, 806, 1088, 920, 610, 4062, 14362, 22887, 22856, 17034, 10946, 98912, 395253, 728605, 847832, 721756, 502606, 317811, 3809193, 17008391, 35644614, 47557978, 46166656, 35655012, 23828383, 14930352 ]
[ "nonn", "tabl" ]
A149043
[ 1, 1, 3, 10, 37, 134, 536, 2162, 9124, 38480, 165534, 723098, 3193196, 14221802, 63772316, 287880505, 1309694973, 5985175167, 27484724851, 126726210253, 586613118924, 2726313381339, 12707197416398, 59403354402305, 278452680056717, 1308485546821356, 616405444133582...
[ "nonn", "walk" ]
A169930
[ 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 21, 22, 23, 24, 25, 26, 27, 28, 29, 20, 31, 32, 33, 34, 35, 36 ]
[ "dead" ]
A261827
[ 6, 0, 3, 5, 7, 1, 1, 7, 1, 4, 3, 0, 6, 9, 2, 3, 3, 3, 4, 6, 2, 8, 3, 9, 9, 0, 5, 2, 9, 2, 6, 0, 9, 4, 6, 1, 8, 0, 8, 0, 6, 1, 7, 5, 7, 4, 8, 1, 3, 6, 8, 9, 5, 4, 6, 1, 0, 7, 0, 6, 6, 8, 5, 6...
[ "nonn", "cons" ]
A307864
[ 0, 1, 2, 3, 2, 5, 6, 1, 8, 9, 4, 11, 4, 1, 14, 15, 4, 1, 18, 1, 20, 21, 4, 23, 6, 1, 26, 1, 4, 29, 30, 1, 16, 33, 4, 35, 36, 1, 4, 39, 2, 41, 4, 1, 44, 9, 4, 1, 48, 1, 50, 51, 16, 53, 54, 1, 56, 1, 4,...
[ "nonn" ]
A316187
[ 1, 2, 3, 11, 22, 26, 111, 121, 212, 264, 307, 836, 1111, 2285, 2636, 11011, 11111, 11211, 24846, 111111, 798644, 1101011, 1102011, 1110111, 1111111, 2294675, 11011011, 11100111, 11111111, 11129361, 12028229, 12866669, 110101011, 110111011, 11101011...
[ "nonn", "base" ]
A292592
[ 0, 0, 0, 1, 0, 0, 2, 2, 0, 1, 0, 0, 4, 5, 4, 5, 0, 0, 2, 2, 0, 1, 0, 0, 8, 8, 10, 11, 8, 8, 10, 10, 0, 1, 0, 0, 4, 5, 4, 5, 0, 0, 2, 2, 0, 1, 0, 0, 16, 17, 16, 17, 20, 20, 22, 23, 16, 17, 16, 16, ...
[ "nonn", "base" ]
A145580
[ 1, 1, 1, 0, 1, 2, -1, 0, 2, 3, 0, -1, 0, 3, 4, 1, 0, -2, 0, 4, 6, 0, 1, 0, -3, 0, 6, 9, -1, 0, 2, 0, -4, 0, 9, 13, 0, -1, 0, 3, 0, -6, 0, 13, 19, 1, 0, -2, 0, 4, 0, -9, 0, 19, 28 ]
[ "tabl", "sign" ]
A187169
[ 0, 144, 67824, 608928, 2188608, 5299056, 10416624, 18026640, 28617228, 42676728, 60693480, 83155824, 110552100, 143370648, 182099808, 227227920, 279243324, 338634360, 405889368, 481496688, 565944660, 659721624, 763315920, 877215888 ]
[ "nonn", "walk" ]
A319748
[ 1, 0, 1, 3, 10, 25, 72, 182, 502, 1332, 3720, 10380, 30142, 88842, 270569, 842957, 2703060, 8885029, 29990388, 103743388, 367811233, 1334925589, 4957151327, 18817501736, 72972267232, 288863499000, 1166486601571, 4802115258807, 20141268290050, 86017885573548,...
[ "nonn" ]
A112125
[ 1, 1, -10, 160, -3061, 63775, -1381434, 30233546, -654989371, 13821523157, -280493565375, 5432981693533, -100769609590332, 1833421110751790, -34286913831217396, 678578947805323400, -13377225136748683000, 221000164094797580000, -2.1196778843006207e+21 ]
[ "sign" ]
A061992
[ 0, 0, 0, 0, 0, 0, 4, 94, 550, 2292, 7552, 21362, 52856, 117694, 241484, 463038, 838816, 1448002, 2398292, 3832374, 5935120, 8941514, 13145292, 18908302, 26670584, 36961170, 50409604, 67758182, 89874912, 117767194, 152596220 ]
[ "nonn", "easy" ]
A280700
[ 0, 1, 2, 1, 3, 1, 2, 3, 4, 1, 2, 3, 3, 4, 3, 3, 5, 1, 2, 3, 3, 4, 3, 3, 4, 5, 3, 3, 4, 4, 3, 4, 6, 1, 2, 3, 3, 4, 3, 3, 4, 5, 3, 3, 4, 4, 3, 4, 5, 6, 3, 3, 4, 4, 3, 4, 5, 5, 3, 4, 4, 5, 6, 4...
[ "nonn" ]
A112998
[ 61, 73, 193, 277, 397, 421, 613, 661, 757, 1093, 1237, 1453, 1657, 2137, 2341, 2593, 2797, 2917, 3217, 4177, 4621, 5233, 6121, 6133, 6217, 7057, 7537, 8101, 8317, 8353, 8521, 8677, 8893, 9013, 9277, 9721, 9817, 10357, 10957, 11161, 1167...
[ "nonn" ]
A337640
[ 2, 11, 35, 80, 155, 266, 422, 626, 890, 1223, 1625, 2108, 2678, 3341, 4109, 4988, 5990, 7106, 8348, 9734, 11264, 12953, 14801, 16820, 19019, 21389, 23957, 26717, 29663, 32834, 36230, 39860, 43712, 47795, 52139, 56726, 61598, 66746, 72152, ...
[ "nonn" ]
A014499
[ 1, 2, 2, 3, 3, 3, 2, 3, 4, 4, 5, 3, 3, 4, 5, 4, 5, 5, 3, 4, 3, 5, 4, 4, 3, 4, 5, 5, 5, 4, 7, 3, 3, 4, 4, 5, 5, 4, 5, 5, 5, 5, 7, 3, 4, 5, 5, 7, 5, 5, 5, 7, 5, 7, 2, 4, 4, 5, 4, 4, 5, 4, 5, 6...
[ "nonn", "base", "easy" ]
A292157
[ 1, 1, 2, 4, 11, 23, 80, 230, 837, 2935, 11251, 43364, 173205, 699160, 2868527, 11872515, 49583430, 208407805, 881085265 ]
[ "nonn", "more", "hard" ]
A134860
[ 4, 12, 17, 25, 33, 38, 46, 51, 59, 67, 72, 80, 88, 93, 101, 106, 114, 122, 127, 135, 140, 148, 156, 161, 169, 177, 182, 190, 195, 203, 211, 216, 224, 232, 237, 245, 250, 258, 266, 271, 279, 284, 292, 300, 305, 313, 321, 32...
[ "nonn", "base" ]
A285715
[ 0, 1, 2, 3, 1, 4, 5, 2, 6, 7, 3, 8, 2, 1, 9, 10, 4, 3, 11, 5, 12, 13, 2, 14, 3, 6, 15, 4, 7, 16, 17, 3, 5, 18, 8, 19, 20, 2, 4, 21, 1, 22, 6, 9, 23, 5, 10, 7, 24, 4, 25, 26, 3, 27, 28, 11, 29, 8, 5, ...
[ "nonn" ]
A329185
[ 1, 1, 2, 5, 10, 22, 49, 105, 227, 494, 1071, 2322, 5038, 10927, 23699, 51405, 111498, 241837, 524546, 1137742, 2467761, 5352577, 11609747, 25181550, 54618807, 118468250, 256957750, 557341615, 1208874523, 2622050045, 5687229162, 12335605733, 26755941146...
[ "nonn", "easy" ]
A372963
[ 1, 61, 721, 3901, 15601, 43981, 117601, 249661, 525601, 951661, 1771441, 2812621, 4826641, 7173661, 11248321, 15978301, 24137281, 32061661, 47045521, 60859501, 84790321, 108057901, 148035361, 180005581, 243765601, 294425101, 383163121, 458761501, 594822481, ...
[ "nonn", "mult" ]
A373739
[ 1, 4, 16, 576 ]
[ "nonn", "more", "hard" ]
A231865
[ 5, 7, 19, 251, 277, 383, 503, 3019, 4517, 9967, 29573 ]
[ "hard", "more", "nonn" ]
A251873
[ 11008, 36852, 18464, 31520, 107040, 151704, 267872, 924272, 1402224, 2561696, 8530512, 14524200, 26353888, 85112336, 160905480, 290357600, 904363728, 1882285416, 3363389920, 10173378704, 22821398088, 40487475296, 119653971792 ]
[ "nonn" ]
A165477
[ 0, 1, 2, 1, 2, 3, 2, 3, 4, 5, 6, 7, 6, 5, 6, 5, 6, 7, 8, 7, 8, 7, 8, 9, 8, 9, 8, 7, 8, 9, 8, 9, 10, 9, 10, 11, 12, 11, 10, 11, 12, 11, 10, 11, 12, 13, 14, 15, 14, 15, 16, 15, 14, 13, 12, 13, 14, 15, 1...
[ "nonn", "look" ]
A209445
[ 1, 2, 10, 12, 58, 140, 338, 408, 2955, 4756, 11482, 27720, 66922, 161564, 780100, 470832, 2273378, 8232630, 13250218, 31988856, 154455860, 186444716, 450117362, 1086679440, 3935214363, 6333631924, 30581480180, 36915112104, 89120964298, 430314081400, 519435...
[ "nonn" ]
A145687
[ 1, 0, 0, 0, 0, 0, 776216, 18130188, 5550332508, 1251282702264, 166071600559137, 13047136918828740, 629048543890724200, 19087130695796613000, 372099690249351100000, 4.739291519495551e+21 ]
[ "nonn", "fini" ]
A021829
[ 1, 21, 297, 3577, 39753, 422793, 4384969, 44813769, 454009545, 4575676105, 45971643081, 461011315401, 4617904831177, 46225887853257, 462540273695433, 4627092539587273, 46281069938293450, 462871589543951040 ]
[ "nonn", "easy" ]
A092840
[ 3, 11, 197, 103049 ]
[ "nonn" ]
A297315
[ 1, 7, 23, 66, 207, 654, 2049, 6422, 20119, 63033, 197551, 619096, 1940007, 6079365, 19051015, 59700283, 187082905, 586262278, 1837172149, 5757153010, 18041210871, 56535805498, 177166451873, 555187134041, 1739791875173, 5451991915452 ]
[ "nonn" ]
A268302
[ 3, 8, 28, 144, 736, 4024, 22912, 134784, 813476, 5010904, 31379808, 199196320, 1278911808, 8290414024, 54186864896, 356711621984, 2362968349568, 15739688709864, 105357470567228, 708338644347808, 4781146692837856, 32387329985982176, 220104493513881920, 150027386172429000...
[ "nonn" ]
A053303
[ 4, 8, 20, 36, 72, 114, 154, 220, 282, 354, 464, 540, 674, 804, 906, 1132 ]
[ "nonn" ]
A062317
[ 1, 2, 10, 13, 29, 34, 58, 65, 97, 106, 146, 157, 205, 218, 274, 289, 353, 370, 442, 461, 541, 562, 650, 673, 769, 794, 898, 925, 1037, 1066, 1186, 1217, 1345, 1378, 1514, 1549, 1693, 1730, 1882, 1921, 2081, 2122, 2290, 2333, 250...
[ "nonn", "easy" ]
A252293
[ 564, 1130, 1130, 2525, 1920, 2525, 5910, 3848, 3848, 5910, 14042, 8636, 8208, 8636, 14042, 33171, 20213, 20558, 20558, 20213, 33171, 79607, 49671, 59767, 68320, 59767, 49671, 79607, 192757, 126017, 184998, 254401, 254401, 184998, 126017, 192757 ]
[ "nonn", "tabl" ]
A171126
[ 2, 3, 10, 14, 15, 21, 22, 26, 33, 34, 38, 39, 46, 50, 51, 57, 58, 62, 69, 70, 74, 75, 82, 86, 87, 93, 94, 98, 105, 106, 110, 111, 118, 122, 123, 129, 130, 134, 141, 142, 146, 147, 154, 158, 159, 165, 166, 170, 177, 178...
[ "nonn", "easy" ]
A288527
[ 3, 49, 322, 1618, 7119, 28917, 111360, 412998, 1490095, 5266919, 18329164, 63032354, 214788229, 726753651, 2445603148, 8194841668, 27369348241, 91175639607, 303133174298, 1006289129240, 3336552385073, 11052905264953, 36588907685926, 121056347131508 ]
[ "nonn" ]
A176096
[ 13, 13313, 1313813, 131313113, 13131313133, 1131313131313, 131313131313139, 13131313131313912, 1313131311313131300, 113131313131313140000, 1.3131313131313133e+22, 1.3131311313131314e+24 ]
[ "base", "nonn" ]
A070411
[ 1, 7, 23, 5, 9, 11, 25, 19, 3, 21, 17, 15, 1, 7, 23, 5, 9, 11, 25, 19, 3, 21, 17, 15, 1, 7, 23, 5, 9, 11, 25, 19, 3, 21, 17, 15, 1, 7, 23, 5, 9, 11, 25, 19, 3, 21, 17, 15, 1, 7, 23, 5, 9, 11, 25, 19, 3, ...
[ "nonn" ]
A203827
[ 1, -1, 1, -1, 0, 1, 1, -1, 1, -1, 0, 0, 1, 1, -1, 0, 2, 1, 0, -1, 2, -1, 1, -1, 1, -1, 0, 0, 0, 1, 1, -1, 0, 0, 3, 1, 0, -1, 0, 5, -1, 1, -1, 0, 3, 1, 0, 0, -1, 3, -1, 1, 0, -2, 5, -1, 0, 1, -2, 3, ...
[ "sign", "tabf" ]
A313805
[ 1, 5, 10, 15, 21, 29, 34, 38, 44, 51, 55, 60, 67, 72, 77, 82, 89, 94, 100, 105, 110, 117, 122, 127, 134, 140, 143, 148, 155, 162, 165, 171, 178, 183, 188, 193, 200, 207, 211, 214, 221, 228, 233, 236, 244, 251, 254, 259, ...
[ "nonn" ]
A108106
[ 7, 13, 19, 49, 53, 59, 73, 77, 97, 109, 121, 169, 179, 221, 227, 241, 269, 281, 299, 319, 323, 343, 359, 389, 397, 403, 449, 473, 523, 527, 529, 557, 577, 589, 607, 611, 623, 649, 653, 659, 673, 691, 697, 707, 733, 737, 779,...
[ "nonn", "base" ]
A284941
[ 2, 3, 4, 6, 7, 8, 10, 11, 12, 14, 16, 17, 18, 20, 21, 22, 24, 25, 26, 28, 30, 31, 32, 34, 35, 36, 38, 39, 40, 42, 44, 45, 46, 48, 50, 51, 52, 54, 55, 56, 58, 59, 60, 62, 64, 65, 66, 68, 69, 70, 72, 73, 74, 76, ...
[ "nonn", "easy" ]
A227104
[ -1, 3, 2, 3, 7, 10, 15, 27, 42, 67, 111, 178, 287, 467, 754, 1219, 1975, 3194, 5167, 8363, 13530, 21891, 35423, 57314, 92735, 150051, 242786, 392835, 635623, 1028458, 1664079, 2692539, 4356618, 7049155, 11405775, 18454930, 29860703, 48315635,...
[ "sign", "easy" ]
A049184
[ 1, 1, 3, 11, 43, 181, 797, 3623, 16883, 80211, 387069, 1891993, 9348037, 46611111, 234246003, 1185284981, 6033612461, 30877015405, 158761428015, 819773798543, 4249143243487, 22100975481441, 115316005733921, 603418314889419 ]
[ "nonn" ]
A384722
[ 1, 1, 0, 1, 1, 0, 1, 2, 7, 0, 1, 3, 16, 118, 0, 1, 4, 27, 278, 3385, 0, 1, 5, 40, 486, 8008, 141556, 0, 1, 6, 55, 748, 14121, 333482, 7918489, 0, 1, 7, 72, 1070, 22000, 587268, 18524980, 561302470, 0, 1, 8, 91, 1458, 3...
[ "nonn", "tabl" ]
A239459
[ 11, 82, 273, 644, 1255, 2166, 3437, 5128, 7299, 100010, 133111, 172812, 219713, 274414, 337515, 409616, 491317, 583218, 685919, 800020, 926121, 1064822, 1216723, 1382424, 1562525, 1757626, 1968327, 2195228, 2438929, 2700030, 2979131, 3276832, 3593733 ]
[ "nonn", "base" ]
A204307
[ 1166400, 209106648, 32895567670, 2692305415538, 211637634795580, 10058642503775704 ]
[ "nonn" ]
A224897
[ 5, 113, 1181, 21670, 263423, 7815547, 35619942 ]
[ "nonn", "base" ]
A160822
[ 2, 4, 7, 9, 11, 13, 16, 19, 23, 25, 27, 29, 31, 45, 47, 49, 53, 61, 64, 67, 71, 73, 81, 83, 93, 97, 101, 103, 107, 109, 113, 119, 121, 125, 127, 131, 139, 145, 149, 151, 161, 163, 167, 169, 173, 181, 187, 191, 193, 197...
[ "nonn" ]
A139953
[ 11, 79, 151, 211, 239, 359, 431, 491, 571, 659, 739, 919, 1019, 1031, 1051, 1451, 1471, 1579, 1619, 1759, 1999, 2111, 2251, 2339, 2459, 2591, 2851, 2879, 3011, 3119, 3299, 3319, 3511, 3539, 3571, 3691, 3739, 4099, 4111, 4391, 4831, 50...
[ "nonn", "easy" ]
A107685
[ 2, 3, 5, 3, 7, 5, 13, 11, 19, 17, 31, 29, 43, 41, 61, 59, 73, 71, 103, 101, 109, 107, 139, 137, 151, 149, 181, 179, 193, 191, 199, 197, 229, 227, 241, 239, 271, 269, 283, 281, 313, 311, 349, 347, 421, 419, 433, 431, 463,...
[ "nonn" ]
A185360
[ 0, 0, 1, 1, 7, 28, 257, 2933 ]
[ "nonn", "more", "hard" ]
A206401
[ 1, 2, 11, 126, 2049, 42012, 1047507, 30867540, 1049597685, 40441973328, 1741357779039, 82865509846776, 4318613855629605, 244629863660429700, 14965278826983897000, 983295107764013200000, 6.906186885328642e+22, 5.163430410995824e+24 ]
[ "nonn" ]
A238986
[ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 2, 2, 4, 6, 8, 2, 4, 8, 4, 4, 4, 4, 4, 6, 8, 2, 4, 8, 4, 4, 6, 6, 6, 6, 8, 2, 4, 8, 4, 4, 8, 8, 8, 8, 8, 2, 4, 8, 4, 4, 2, 2, 2, 2, 2, 2, 4, 8, 4, 4 ]
[ "nonn", "base", "uned" ]
A290561
[ 1, 1, 1, 3, 5, 5, 5, 7, 9, 9, 9, 11, 13, 13, 13, 15, 17, 17, 17, 19, 21, 21, 21, 23, 25, 25, 25, 27, 29, 29, 29, 31, 33, 33, 33, 35, 37, 37, 37, 39, 41, 41, 41, 43, 45, 45, 45, 47, 49, 49, 49, 51, 53, 53, 53,...
[ "nonn", "easy" ]
A225394
[ 1, 1, 2, 3, 5, 8, 13, 20, 32, 51, 81, 129, 205, 326, 519, 826, 1314, 2091, 3327, 5294, 8424, 13404, 21328, 33937, 54000, 85924, 136721, 217548, 346159, 550803, 876429, 1394560, 2219002, 3530841, 5618219, 8939622, 14224586, 22633938, 3601476...
[ "nonn", "easy" ]
A034945
[ 0, 3, 10, 108, 2166, 4567, 38181, 155830, 1802916, 24862120, 266983762, 1961835256, 5916488742, 19757775943, 116646786350, 9611769806236, 42844700375837, 275475214363044, 6789129606004840, 75182500718243700 ]
[ "nonn", "easy" ]
A273227
[ 4, 5, 6, 6, 7, 7, 9, 8, 8, 9, 9, 10, 13, 10, 10, 15, 12, 11, 11, 12, 14, 19, 12, 12, 21, 16, 13, 13, 15, 14, 25, 14, 14, 15, 20, 17, 15, 16, 15, 22, 31, 16, 33, 16, 16, 18, 17, 21, 26, 17, 17, 39, 20, 23, 18,...
[ "nonn", "changed" ]
A001164
[ 1, 12, 288, 51840, 2488320, 209018880, 75246796800, 902961561600, 86684309913600, 514904800886784000, 86504006548979710000, 1.3494625021640835e+22, 9.716130015581401e+24, 1.1659356018697682e+26, 2.7982454444874436e+27, 2.9969208710460522e+32, 5.7540880724084195e+34 ]
[ "nonn", "frac", "nice", "changed" ]
A095245
[ 0, 2, 0, 5, 3, 7, 15, 16, 21, 27, 7, 11, 17, 21, 37, 7, 28, 10, 50, 70, 70, 23, 46, 20, 76, 93, 81, 52, 1, 58, 87, 54, 100, 128, 39, 10, 117, 16, 42, 89, 98, 61, 135, 123, 13, 89, 201, 147, 124, 176, 186, 202, 71...
[ "base", "nonn", "less" ]
A077761
[ 2, 6, 1, 4, 9, 7, 2, 1, 2, 8, 4, 7, 6, 4, 2, 7, 8, 3, 7, 5, 5, 4, 2, 6, 8, 3, 8, 6, 0, 8, 6, 9, 5, 8, 5, 9, 0, 5, 1, 5, 6, 6, 6, 4, 8, 2, 6, 1, 1, 9, 9, 2, 0, 6, 1, 9, 2, 0, 6, 4, 2, 1, 3, 9...
[ "cons", "nonn" ]
A081714
[ 0, 3, 4, 14, 33, 90, 232, 611, 1596, 4182, 10945, 28658, 75024, 196419, 514228, 1346270, 3524577, 9227466, 24157816, 63245987, 165580140, 433494438, 1134903169, 2971215074, 7778742048, 20365011075, 53316291172, 139583862446, 365435296161, 956722026042 ]
[ "nonn", "easy" ]
A087355
[ 1, 24, 49, 8576, 65625, 466176, 2475249, 73741824, 486784401, 0, 25937424601, 61917364224, 137858491849, 289254654976, 576650390625, 1099511627776, 2015993900449, 3570467226624, 6131066257801, 10240000000000 ]
[ "nonn" ]
A131163
[ 0, 1, 3, 2, 8, 7, 5, 6, 4, 22, 21, 18, 20, 17, 13, 12, 15, 16, 19, 10, 14, 11, 9, 64, 63, 59, 62, 58, 50, 49, 55, 57, 61, 46, 54, 48, 45, 36, 35, 32, 34, 31, 41, 40, 43, 44, 47, 52, 53, 56, 60, 27, 26, 38, 42...
[ "nonn" ]
A039575
[ 2, 3, 5, 14, 15, 17, 20, 21, 23, 32, 33, 35, 40, 60, 86, 87, 89, 92, 93, 95, 104, 105, 107, 122, 123, 125, 128, 129, 131, 140, 141, 143, 145, 150, 194, 195, 197, 200, 201, 203, 212, 213, 215, 232, 238, 242, 243, 245, 250...
[ "nonn", "base", "easy" ]
A194904
[ 1, 3, 2, 5, 4, 6, 8, 10, 7, 9, 12, 14, 11, 13, 15, 17, 19, 21, 16, 18, 20, 23, 25, 27, 22, 24, 26, 28, 30, 32, 34, 36, 29, 31, 33, 35, 38, 40, 42, 44, 37, 39, 41, 43, 45, 47, 49, 51, 53, 55, 46, 48, 50, 52, 5...
[ "nonn" ]
A102829
[ 1, 2, 4, 5, 8, 13, 14, 17, 23, 29, 32, 35, 41, 44, 50, 56, 62, 67, 74, 76, 82, 88, 92, 95, 98, 104, 110, 113, 116, 122, 125, 131, 137, 143, 152, 161, 173, 179, 188, 193, 202, 206, 215, 223, 226, 232, 238, 244, 250, 256...
[ "nonn", "easy", "base" ]
A384835
[ 1, 1, 1, 2, 2, 1, 2, 3, 3, 2, 4, 3, 6, 1, 5, 4, 7, 2, 3, 10, 6, 7, 2, 15, 12, 5, 18, 1, 18, 5, 21, 4, 24, 5, 27, 4, 11, 24, 30, 7, 32, 9, 33, 8, 31, 12, 36, 7, 43, 2, 32, 15, 43, 8, 50, 9, 63, 2, 66, ...
[ "nonn", "tabf" ]
A136382
[ 6, 40, 2992, 12414272, 209257095067008, 5.931748052518718e+28, 4.7028132934074244e+57, 2.9544706650695304e+115 ]
[ "nonn", "base" ]
A034676
[ 1, 5, 10, 17, 26, 50, 50, 65, 82, 130, 122, 170, 170, 250, 260, 257, 290, 410, 362, 442, 500, 610, 530, 650, 626, 850, 730, 850, 842, 1300, 962, 1025, 1220, 1450, 1300, 1394, 1370, 1810, 1700, 1690, 1682, 2500, 1850, 2074, 2132,...
[ "nonn", "mult" ]
A301150
[ 1, 4, 9, 18, 35, 57, 76, 96, 128, 172, 216, 252, 290, 343, 408, 471, 528, 591, 665, 745, 828, 912, 996, 1084, 1184, 1292, 1396, 1498, 1609, 1732, 1858, 1980, 2104, 2239, 2383, 2525, 2664, 2812, 2972, 3135, 3297, 3460, 3626, 3799, ...
[ "nonn" ]
A191895
[ 1, 2, 12, 112, 220, 222, 2212, 32, 12222, 1230, 1232, 2232, 22230, 1330, 30030, 3232, 20332, 1000332, 223231, 33300, 23331, 132330, 213233, 233232, 12233300, 104, 12222333, 224, 2204, 12240, 341, 3040, 202224, 10234, 23240, 2000304, 3034, 433...
[ "nonn", "base" ]
A122180
[ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 3, 0, 0, 0, 1...
[ "nonn" ]
A292081
[ 35, 65, 95, 115, 161, 155, 217, 185, 215, 235, 329, 265, 371, 305, 427, 335, 365, 511, 395, 415, 581, 445, 623, 1246, 485, 515, 545, 565, 791, 1417, 1243, 1469, 2071, 635, 655, 917, 695, 973, 1507, 1529, 755, 1057, 785, 1099, 81...
[ "nonn" ]
A187383
[ 0, 0, 0, 340, 3060, 10320, 24892, 46412, 75567, 111492, 154187, 203652, 259887, 322892, 392667, 469212, 552527, 642612, 739467, 843092, 953487, 1070652, 1194587, 1325292, 1462767, 1607012, 1758027, 1915812, 2080367, 2251692, 2429787, 2614652 ]
[ "nonn" ]
A176401
[ 6, 1, 2, 2, 4, 9, 8, 9, 9, 9, 1, 9, 9, 1, 9, 9, 1, 0, 2, 9, 2, 3, 4, 4, 6, 5, 6, 0, 4, 6, 9, 8, 9, 7, 2, 3, 0, 5, 3, 6, 4, 7, 9, 9, 8, 8, 9, 9, 5, 8, 2, 8, 1, 5, 4, 2, 2, 6, 4, 8, 5, 9, 6, 5...
[ "cons", "nonn" ]
A365925
[ 1, 2, 2, 6, 6, 10, 17, 22, 29, 42, 59, 74, 102, 130, 171, 226, 281, 356, 454, 566, 699, 896, 1080, 1342, 1637, 2006, 2413, 2962, 3548, 4286, 5114, 6148, 7272, 8738, 10268, 12224, 14387, 16996, 19863, 23450, 27257, 31984, 37187, 43...
[ "nonn" ]
A072490
[ 0, 0, 1, 2, 2, 3, 4, 5, 5, 5, 6, 7, 7, 8, 9, 10, 10, 11, 11, 12, 12, 13, 14, 15, 15, 15, 16, 16, 16, 17, 18, 19, 19, 20, 21, 22, 22, 23, 24, 25, 25, 26, 27, 28, 28, 28, 29, 30, 30, 30, 30, 31, 31, 32, 32, 3...
[ "nonn" ]
A118400
[ 1, 1, -1, 1, 0, 1, -1, -1, -1, -1, 1, 2, 2, 2, 1, -1, -3, -4, -4, -3, -1, 1, 4, 7, 8, 7, 4, 1, -1, -5, -11, -15, -15, -11, -5, -1, 1, 6, 16, 26, 30, 26, 16, 6, 1, -1, -7, -22, -42, -56, -56, -42, -22, -7, -1,...
[ "sign", "tabl" ]
A033501
[ 1, 2, 3, 4, 6, 8, 9, 12, 15, 16, 18, 20, 24, 25, 28, 30, 35, 36, 40, 42, 48, 49, 54, 56, 60, 63, 64, 70, 72, 77, 80, 81, 88, 90, 96, 99, 100, 108, 110, 117, 120, 121, 130, 132, 140, 143, 144, 150, 154, 156, 165, 16...
[ "nonn", "easy" ]
A353598
[ 61, 82, 4862, 5082, 7514, 96635, 9663413658635, 9610113281598336, 9610166586341898000, 48184011328159880000, 50815988671840120000, 75184011328159890000, 966341365863413700000, 4.818401665863419e+22, 5.081598334136581e+22, 7.518401665863419e+22, 9.66341898867184e+23 ]
[ "base", "nonn" ]
A171734
[ 2, 0, 6, 24, 10, 96, 14, 240, 18, 480, 22, 840, 26, 1344, 30, 2016, 34, 2880, 38, 3960, 42, 5280, 46, 6864, 50, 8736, 54, 10920, 58, 13440, 62, 16320, 66, 19584, 70, 23256, 74, 27360, 78, 31920, 82, 36960, 86, 42504, 90, 48576...
[ "nonn", "easy" ]
A246795
[ 1, 1, 2, 3, 5, 5, 7, 8, 9, 8, 12, 10, 11, 12, 9, 12, 15, 10, 11, 15, 10, 17, 13, 16, 20, 17, 21, 19, 19, 24, 13, 23, 18, 21, 17, 26, 26, 29, 19, 23, 23, 25, 27, 27, 29, 24, 26, 25, 33, 28, 32, 32, 31, 36, 35,...
[ "nonn", "hard" ]
A178672
[ 0, 30, 210, 1290, 7770, 46650, 279930, 1679610, 10077690, 60466170, 362797050, 2176782330, 13060694010, 78364164090, 470184984570, 2821109907450, 16926659444730, 101559956668410, 609359740010490, 3656158440062970, 21936950640377850, 131621703842267140 ]
[ "nonn", "easy" ]
A076551
[ 1, 3, 6, 66, 210, 3570, 103740, 930930, 56812470, 1722580860, 32395433070, 265257422430, 91348974206490, 8923863379851420, 330196858581850240, 14193386885746698000, 2.37852276279214e+21, 3.512068140224197e+23, 2.879178743959301e+25 ]
[ "nonn" ]
A354371
[ 1, 2, 3, 4, 12, 5, 6, 7, 14, 11, 16, 8, 10, 13, 17, 19, 22, 9, 15, 20, 26, 27, 69, 31, 18, 40, 34, 32, 42, 78, 49, 21, 24, 30, 41, 43, 46, 51, 33, 23, 25, 39, 37, 44, 64, 68, 59, 54, 48, 28, 29, 38, 58, 74, 7...
[ "tabl", "nonn" ]
A373184
[ 2, 3, 6, 5, 6, 10, 8, 9, 16, 11, 12, 18, 14, 15, 22, 17, 18, 29, 20, 21, 30, 23, 24, 34, 26, 27, 44, 29, 30, 42, 32, 33, 46, 35, 36, 55, 38, 39, 54, 41, 42, 58, 44, 45, 68, 47, 48, 66, 50, 51, 70, 53, 54, 84, ...
[ "nonn", "easy" ]
A059361
[ 1, 3, 6, 8, 81, 96, 8192, 36669429, 36675584, 129140163, 129253376 ]
[ "more", "nonn" ]
A221293
[ 1, 114, 3332, 123958, 4983598, 172905144, 6138441061 ]
[ "nonn" ]
A061132
[ 1, 1, 1, 1, 4, 40, 190, 610, 1660, 13420, 174700, 1326700, 30818800, 342140800, 2534931400, 16519411000, 143752426000, 4842417082000, 73620307162000, 687934401562000, 17165461784680000, 308493094924720000, 4585953613991980000, 53843602355379220000 ]
[ "easy", "nonn" ]
A147810
[ 1, 1, 2, 1, 2, 1, 3, 2, 2, 1, 2, 2, 4, 1, 2, 1, 4, 3, 2, 1, 4, 2, 4, 1, 2, 1, 4, 2, 2, 2, 4, 3, 4, 2, 2, 1, 4, 3, 2, 1, 3, 2, 6, 2, 2, 2, 8, 2, 2, 2, 2, 2, 4, 1, 4, 1, 8, 2, 2, 2, 2, 2, 4, 2...
[ "easy", "nonn" ]