id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A059025
[ 1, 1, 1, 1, 1, 1, 1, 462, 1, 1716, 1, 4719, 1, 11440, 1, 25883, 1, 56134, 1, 118456, 2858856, 1, 245480, 23279256, 1, 502588, 124710300, 1, 1020680, 551496660, 1, 2061709, 2181183147, 1, 4149752, 8021782197, 1, 8333153, 28051272535 ]
[ "nonn", "tabf", "nice" ]
A349626
[ 1, 0, 1, 10, 0, 0, 1, -8, 27, 0, 4, 10, 3, 0, 0, 46, 2, 0, 1, 0, 1, 0, 5, -8, 33, 0, -7, 10, 0, 0, 16, 6, 4, 0, 0, 270, 9, 0, 3, 0, 6, 0, 1, 40, 0, 0, 7, 46, 83, 0, 2, 30, 5, 0, 0, -8, 1, 0, 28, 0, ...
[ "sign", "mult" ]
A203864
[ 1648, 21635, 210190, 1605552, 10500903, 59962757, 309154358, 1459797487, 6416948063, 26519347624, 104007127796, 389733297547, 1403705680053, 4882521376349, 16468445276261, 54047747618910, 173099841345451 ]
[ "nonn" ]
A190935
[ 1, 16924, 403365340, 11922480289932, 407090790228102100, 1.5381627927280925e+22, 6.260764369276549e+26, 2.697300937509674e+31, 1.2152697834629693e+36 ]
[ "nonn" ]
A348131
[ 1, 4, 7, 272, 211, 51012, 14197, 18640960, 1690981, 11225320100, 313968931, 10079828372880, 83828316391, 12627774819845668, 30436810578889, 21046391759976990000, 14425381885981320, 4.503213292292176e+22, 8649148282327008000, 1.203142279947028e+26 ]
[ "nonn", "frac" ]
A071820
[ 2, 2, 3, 3, 2, 2, 2, 3, 3, 3, 2, 2, 3, 3, 2, 2, 3, 3, 3, 2, 2, 2, 3, 3, 3, 2, 2, 3, 3, 2, 2, 2, 3, 3, 3, 2, 2, 3, 3, 2, 2, 2, 3, 3, 3, 2, 2, 2, 3, 3, 2, 2, 3, 3, 2, 2, 2, 3, 3, 3, 2, 2, 2, 3...
[ "nonn", "easy" ]
A054164
[ 0, 0, 1, 2, 4, 8, 13, 24, 44, 79, 147, 275, 516, 976, 1859, 3552, 6810, 13102, 25281, 48908, 94819, 184144, 358279, 698183, 1362298, 2661409, 5204770, 10189097, 19964562, 39151220, 76835090, 150897513, 296542636, 583115721, 1147276480 ]
[ "nonn" ]
A317547
[ 2, 1, 7, 2, 2, 6, 8, 9, 8, 3, 5, 6, 1, 2, 0, 8, 4, 2, 7, 4, 3, 0, 1, 9, 2, 8, 8, 2, 3, 3, 3, 5, 3, 8, 8, 8, 5, 4, 1, 4, 4, 1, 0, 2, 2, 3, 3, 0, 0, 6, 1, 7, 3, 6, 2, 2, 9, 6, 9, 4, 2, 0, 1, 4...
[ "nonn", "cons" ]
A056080
[ 1, 2, 14, 49, 131, 248, 410, 531, 601, 566, 474, 336, 222, 124, 67, 32, 16, 6, 3, 1, 1 ]
[ "fini", "full", "nonn" ]
A063048
[ 196, 879, 1997, 7059, 10553, 10563, 10577, 10583, 10585, 10638, 10663, 10668, 10697, 10715, 10728, 10735, 10746, 10748, 10783, 10785, 10787, 10788, 10877, 10883, 10963, 10965, 10969, 10977, 10983, 10985, 12797, 12898, 13097, 13197, 13694 ]
[ "base", "nonn" ]
A243008
[ 1, 10, 3240, 3321, 13041, 13203, 15400, 65341, 80200, 90100, 161028, 210276, 260281, 265356, 266085, 300700, 346528, 500500, 937765, 947376, 1043290, 1228528, 1313010, 1628110, 2049300, 2390391, 2421100, 3357936, 3746953, 4020030, 5250420, 6641190, 685...
[ "nonn", "base" ]
A324188
[ 1, 1, 1, 2, 1, 1, 12, 2, 1, 4, 3, 1, 4, 12, 2, 2, 3, 1, 24, 4, 1, 2, 3, 3, 12, 6, 24, 4, 6, 4, 8, 2, 1, 2, 3, 1, 8, 24, 4, 4, 3, 1, 12, 6, 1, 6, 3, 1, 4, 120, 18, 2, 24, 24, 16, 4, 10, 2, 48, 4, 5...
[ "nonn" ]
A040985
[ 11, 31, 41, 61, 101, 131, 151, 181, 191, 211, 241, 271, 281, 331, 431, 491, 521, 541, 571, 601, 631, 751, 761, 811, 821, 881, 911, 941, 971, 991, 1021, 1031, 1061, 1091, 1151, 1181, 1201, 1231, 1291, 1301, 1321, 1361, 1451, 1481 ]
[ "nonn", "easy" ]
A163486
[ 0, 2, 3, 1, 11, 10, 8, 9, 12, 14, 15, 13, 7, 6, 4, 5, 47, 45, 44, 46, 43, 42, 40, 41, 35, 33, 32, 34, 39, 38, 36, 37, 48, 50, 51, 49, 59, 58, 56, 57, 60, 62, 63, 61, 55, 54, 52, 53, 31, 29, 28, 30, 27, 26, 24...
[ "nonn" ]
A204136
[ 0, 3, 3, 8, 8, 13, 8, 23, 3, 24, 9, 23, 9, 3, 25, 8, 24, 8, 25, 30, 59, 9, 23, 50, 41, 24, 13, 20, 13, 129, 9, 3, 25, 19, 118, 9, 14, 9, 25, 51, 66, 42, 8, 8, 14, 97, 18, 25, 3, 102, 8, 41, 26, 20, 56, 74, ...
[ "nonn" ]
A013129
[ 1, 2, 4, 5, -8, -71, -122, 863, 5352, -11207, -239494, -103541, 14203028, 49174077, -1067540778, -8312033249, 94081990576, 1398228044113, -8737926966734, -258914411211565, 612930093492268, 53899233359866410 ]
[ "sign" ]
A369938
[ 2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 25, 26, 28, 29, 30, 31, 33, 34, 35, 36, 37, 38, 39, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 55, 57, 58, 59, 60, 61, 62, ...
[ "nonn", "easy" ]
A307055
[ 2, 10, 16, 22, 26, 28, 34, 40, 46, 50, 52, 58, 64, 66, 70, 76, 78, 82, 86, 88, 92, 94, 100, 106, 116, 118, 122, 124, 130, 134, 136, 142, 146, 148, 154, 156, 166, 170, 172, 178, 184, 188, 190, 196, 202, 206, 208, 210, 214...
[ "nonn" ]
A100712
[ 3, 5, 6, 12, 14, 17, 20, 21, 27, 54, 57, 66, 69, 71, 77, 90, 101, 131, 141, 150, 155, 161, 164, 189, 192, 194, 231, 245, 266, 332, 336, 344, 351, 381, 392, 402, 434, 456, 476, 495, 500, 512, 531, 551, 572, 579, 582, 605, ...
[ "easy", "nonn" ]
A244647
[ 1, 2, 1, 6, 7, 4, 5, 9, 5, 6, 1, 5, 8, 2, 4, 4, 1, 8, 2, 4, 9, 4, 3, 3, 9, 3, 5, 2, 0, 0, 4, 7, 6, 0, 3, 8, 2, 1, 0, 8, 3, 6, 1, 7, 0, 0, 9, 2, 2, 7, 7, 2, 8, 9, 0, 9, 4, 9, 8, 3, 7, 4, 4, 1...
[ "nonn", "cons", "easy" ]
A073364
[ 1, 1, 1, 4, 1, 9, 4, 36, 36, 676, 400, 9216, 3600, 44100, 36100, 1223236, 583696, 14130081, 5461569, 158180929, 96275344, 5486661184, 2454013444, 179677645456, 108938283364, 5446753133584, 4551557699844, 280114147765321, 125264064932449, 9967796169000200 ]
[ "nonn" ]
A086243
[ 2, 14, 68, 604, 4312 ]
[ "hard", "nonn" ]
A251018
[ 5657125, 6895174650, 8124335802103, 9606281958966442, 11361245256068264000, 1.3434537978036587e+22, 1.5886176013807766e+25, 1.8785635148748206e+28, 2.2214352650941116e+31 ]
[ "nonn" ]
A039973
[ 1, 0, 2, 0, 2, 0, 1, 0, 2, 0, 0, 0, 0, 0, 0, 0, 2, 0, 1, 0, 2, 0, 2, 0, 1, 0, 2, 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, 0, 1, 0, 2, 0, 2, 0, 1, 0, 2, 0...
[ "nonn" ]
A225825
[ 1, 1, -1, -1, 7, 3, -31, -17, 127, 155, -2555, -2073, 1414477, 38227, -57337, -929569, 118518239, 28820619, -5749691557, -1109652905, 91546277357, 51943281731, -1792042792463, -2905151042481, 1982765468311237, 191329672483963, -286994504449393, -1465562615476869...
[ "sign" ]
A312379
[ 1, 4, 8, 14, 17, 22, 29, 30, 36, 38, 49, 46, 55, 54, 70, 62, 74, 70, 90, 78, 93, 86, 111, 94, 112, 102, 131, 110, 131, 118, 152, 126, 150, 134, 172, 142, 169, 150, 193, 158, 188, 166, 213, 174, 207, 182, 234, 190, 226, ...
[ "nonn" ]
A318718
[ 3, 5, 7, 11, 13, 17, 19, 21, 23, 29, 31, 37, 39, 41, 43, 47, 53, 57, 59, 61, 65, 67, 71, 73, 79, 83, 87, 89, 91, 97, 101, 103, 107, 109, 111, 113, 115, 127, 129, 131, 133, 137, 139, 149, 151, 157, 159, 163, 167, 173, ...
[ "nonn" ]
A059522
[ 1, 2, 12, 168, 4680, 223920, 16470720, 1725655680, 244074902400, 44799999955200, 10353389902732800, 2941340482417075000, 1.0074837545684271e+21, 4.0943608066563105e+23, 1.9476959739960938e+26, 1.0721037510331504e+29, 6.761005541539812e+31 ]
[ "nonn", "easy" ]
A376574
[ 1, 1, 2, 5, 15, 46, 147, 486, 1646, 5684, 19940, 70864, 254592, 923153, 3374046, 12417246, 45975677, 171141378, 640105278, 2404375805, 9066188052, 34305301482, 130219435385, 495735347502, 1892254721982, 7240580768021, 27768359445128, 106718055778871 ]
[ "nonn" ]
A014625
[ 1, 0, 0, 0, -1, 0, 0, 0, 1, 0, 0, 0, -1, 0, 0, 0, 1, 0, 0, 0, -1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, -1, 0, 0, 0, 1, 0, 0, 0, -1, 0, 0, 0, 1, 0, 0...
[ "sign" ]
A038113
[ 1, 2, 11, 12, 21, 101, 1001, 1002, 1011, 10001, 10002, 10011, 10012, 10021, 10101, 11001, 11002, 100001, 100002, 100011, 100012, 100021, 100101, 101001, 101002, 101011, 110001, 110002, 110011, 110012, 110021, 110101, 111001, 111002, 200001 ]
[ "nonn", "base" ]
A057670
[ 1, 4, 6, 10, 10, 24, 14, 24, 21, 40, 22, 60, 26, 56, 60, 52, 34, 84, 38, 100, 84, 88, 46, 144, 55, 104, 72, 140, 58, 240, 62, 112, 132, 136, 140, 210, 74, 152, 156, 240, 82, 336, 86, 220, 210, 184, 94, 312, 105, 220, ...
[ "nonn", "mult", "easy" ]
A330263
[ 1, 2, 3, 4, 5, 12, 6, 15, 23, 7, 19, 30, 47, 57, 20, 16, 8, 22, 35, 58, 73, 82, 100, 112, 123, 39, 29, 9, 25, 40, 69, 85, 98, 121, 138, 155, 179, 232, 247, 269, 282, 26, 44, 80, 17, 10, 28, 46, 81, 96, 111, 143, ...
[ "nonn", "base" ]
A148602
[ 1, 1, 3, 6, 20, 58, 193, 632, 2283, 8009, 29503, 109608, 417840, 1593676, 6201714, 24352821, 96549718, 384965234, 1551154581, 6289703937, 25643105136, 105131398752, 433780213485, 1797589931543, 7479489370556, 31262568274435, 131224989229643, 552593121507505, 2...
[ "nonn", "walk" ]
A166779
[ 0, 0, 120, 2280, 15266, 65553, 217460, 607565, 1499964, 3370950, 7034048, 13819102, 25822302, 46247695, 79864876, 133612235, 217380376, 345016156, 535594248, 815010244 ]
[ "nonn" ]
A225175
[ 1, 2, 3, 6, 10, 11, 12, 18, 30, 42, 78, 106, 210, 366, 550, 603, 750, 1290, 2562, 4398, 4305, 7470, 9090, 14322, 24558, 35382, 55482, 78020, 141190, 207519, 301642, 429870, 552693, 684846, 1060710, 1391390, 2385246, 3454044 ]
[ "nonn", "more" ]
A294555
[ 1, 2, 13, 27, 54, 97, 169, 286, 477, 787, 1290, 2106, 3428, 5568, 9032, 14638, 23710, 38390, 62144, 100580, 162772, 263402, 426226, 689682, 1115965, 1805707, 2921734, 4727505, 7649305, 12376878, 20026253, 32403203, 52429530, 84832809, 137262417, ...
[ "nonn", "easy" ]
A208071
[ 16, 256, 324, 1764, 7056, 26244, 108900, 435600, 1726596, 6937956, 27751824, 110880900, 443776356, 1775105424, 7099410564, 28399664484, 113598657936, 454386542724, 1817562348900, 7270249395600, 29080932870276, 116323860905316 ]
[ "nonn" ]
A110957
[ 1, 10, 104, 1128, 13008, 173376, 2634624, 42422400, 722304000, 13698201600, 286505164800, 6267431116800, 143150760345600, 3551498315366400, 91568579493888000, 2450311107084288000, 67966128937598980000, 1.9518602945034977e+21, 5.992245199412527e+22, 1.9585177585826188e+24 ]
[ "nonn" ]
A332930
[ 1, 1, 1, 2, 5, 16, 60, 255, 1193, 5862, 29875, 155995, 830539, 4489352, 24581675 ]
[ "nonn", "more", "hard" ]
A009679
[ 1, 2, 4, 18, 60, 252, 1860, 9552, 59616, 565920, 4051872, 33805440, 465239808, 4294865664, 35413136640, 768372168960, 8757710173440, 79772814777600, 1986906367584000, 22082635812268800, 280886415019776000, 7683780010315047000 ]
[ "nonn" ]
A031153
[ 1, 5, 11, 15, 35, 39, 235, 335, 461, 715, 1235, 1585, 2261, 2285, 3335, 12335, 33335, 33989, 34965, 72285, 123335, 333335, 1101011, 1233335, 3333335, 11054965, 12333335, 14579285, 33333335, 105934485, 123333335, 333333335 ]
[ "nonn", "base" ]
A068474
[ 19, 47, 77, 79, 115, 177, 191, 267, 280, 297, 340, 398, 406, 446, 470, 639, 839, 917, 1240, 1655, 1713, 1778, 1836, 2140, 2157, 4715, 5110, 5269, 6585, 7089, 7965, 8517, 8844, 9785, 10281, 12586, 15279, 16100, 16468, 16732, 17724, 181...
[ "easy", "nonn" ]
A291019
[ 1, 3, 9, 25, 68, 185, 504, 1373, 3739, 10180, 27714, 75445, 205376, 559064, 1521840, 4142609, 11276581, 30695881, 83556891, 227449066, 619135745, 1685339900, 4587637263, 12487934387, 33993205996, 92532358762, 251880840375, 685640764594, 1866371634554 ]
[ "nonn", "easy" ]
A273253
[ 4, 12, 20, 28, 36, 36, 44, 60, 68, 68, 76, 84, 92, 76, 84, 124, 132, 132, 140, 148, 156, 140, 148, 180, 188, 172, 180, 188, 196, 132, 140, 252, 260, 260, 268, 276, 284, 268, 276, 308, 316, 300, 308, 316, 324, 260, 268, 372...
[ "nonn", "easy" ]
A191885
[ 0, 1, 3, 4, 5, 6, 8, 9, 11, 13, 14, 15, 19, 21, 23, 24, 30, 34, 36, 37, 38, 39, 49, 55, 59, 60, 61, 63, 79, 89, 95, 97, 99, 101, 102, 103, 128, 144, 154, 157, 160, 164, 165, 166, 168, 207, 233, 249, 254, 259, 265, ...
[ "nonn" ]
A001162
[ 1, 2, 3, 6, 7, 8, 10, 15, 16, 17, 21, 22, 23, 26, 27, 28, 31, 32, 33, 36, 37, 38, 40, 44, 45, 49, 50, 54, 55, 59, 60, 64, 65, 69, 70, 74, 75, 79, 81, 82, 83, 86, 87, 88, 91, 92, 93, 96, 97, 98 ]
[ "nonn", "word" ]
A213350
[ 1, 18, 180, 10, 1320, 220, 7920, 2640, 66, 41184, 22880, 1716, 192192, 160160, 24024, 364, 823680, 960960, 240240, 10920, 3294720, 5125120, 1921920, 174720, 1820, 12446720, 24893440, 13069056, 1980160, 61880, 44808192, 112020480 ]
[ "nonn", "tabl" ]
A369025
[ 0, 0, 0, 0, 1, 2, 0, 4, 6, 18, 0, 32, 36, 72, 216, 0, 312, 320, 540, 1080, 3200, 0, 3888, 3750, 5760, 9720, 19200, 56250, 0, 58824, 54432, 78750, 120960, 201600, 393750, 1143072, 0, 1048576, 941192, 1306368, 1890000, 2867200, 472500...
[ "nonn", "tabl" ]
A019680
[ 2, 4, 1, 6, 6, 0, 9, 7, 3, 3, 5, 3, 0, 6, 1, 0, 1, 8, 3, 4, 3, 2, 8, 0, 2, 6, 0, 2, 5, 2, 2, 6, 9, 4, 5, 2, 6, 3, 0, 5, 5, 1, 4, 9, 2, 2, 5, 9, 6, 2, 3, 5, 2, 4, 6, 9, 0, 3, 8, 0, 3, 5, 3, 2...
[ "nonn", "cons" ]
A008975
[ 1, 1, 1, 1, 2, 1, 1, 3, 3, 1, 1, 4, 6, 4, 1, 1, 5, 0, 0, 5, 1, 1, 6, 5, 0, 5, 6, 1, 1, 7, 1, 5, 5, 1, 7, 1, 1, 8, 8, 6, 0, 6, 8, 8, 1, 1, 9, 6, 4, 6, 6, 4, 6, 9, 1, 1, 0, 5, 0, 0, 2, 0, 0, 5...
[ "nonn", "tabl", "base" ]
A331176
[ 0, 0, 0, 2, 0, 3, 0, 6, 6, 5, 0, 9, 0, 7, 0, 14, 0, 15, 0, 15, 14, 11, 0, 21, 20, 13, 24, 21, 0, 15, 0, 30, 0, 17, 0, 33, 0, 19, 26, 35, 0, 35, 0, 33, 30, 23, 0, 45, 42, 45, 0, 39, 0, 51, 44, 49, 38, 29...
[ "nonn" ]
A094722
[ 3657500101, 88362852307, 2428095424619, 12055296811267, 75063692618249, 156740126985437 ]
[ "nonn", "more" ]
A135316
[ 691, 887, 1997, 3583, 3673, 3853, 3943, 4079, 4259, 4349, 4799, 4889, 5581, 5851, 6257, 6977, 8089, 8179, 8269, 8539, 8629, 8719, 10663, 10883, 11777, 11833, 11867, 11923, 11953, 11959, 12097, 12763, 12823, 13397, 13523, 13553, 13597, 13633 ]
[ "nonn", "base" ]
A247734
[ 3, 0, 3, 6, 5, 5, 2, 6, 3, 3, 9, 5, 2, 5, 4, 5, 4, 8, 8, 5, 4, 2, 0, 5, 7, 6, 7, 8, 9, 0, 2, 0, 6, 5, 6, 3, 2, 7, 3, 5, 0, 3, 8, 3, 4, 5, 9, 5, 1, 3, 5, 9, 3, 2, 7, 9, 2, 2, 0, 0, 9, 3, 8, 3...
[ "nonn", "cons" ]
A255750
[ 2485, 7765, 20730, 46367, 86062, 156658, 290525, 531182, 940860, 1668674, 3031160, 5597085, 10094701, 18262539, 34114081, 65352635, 121376088, 225653362, 436223139, 868777357, 1663472667, 3171906522, 6300155508, 12902328159 ]
[ "nonn" ]
A237706
[ 0, 0, 1, 2, 1, 1, 1, 1, 2, 2, 2, 4, 3, 3, 3, 1, 1, 2, 2, 3, 3, 1, 1, 2, 3, 4, 4, 4, 4, 6, 5, 4, 4, 2, 2, 3, 3, 5, 5, 3, 3, 3, 3, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 4, 5, 5, 5, 4, 4, 7, 6, 5, 5, 4...
[ "nonn" ]
A370470
[ 1, 1, 3, 2, 1, 6, 7, 4, 5, 1, 3, 3, 6, 28, 15, 8, 19, 5, 2, 2, 1, 6, 7, 6, 7, 6, 13, 14, 28, 120, 31, 16, 71, 19, 9, 10, 5, 4, 5, 4, 5, 1, 3, 3, 6, 28, 15, 12, 27, 7, 3, 12, 6, 26, 27, 7, 29, 28, 57, ...
[ "nonn", "base" ]
A111930
[ 1, 4, 12, 48, 240, 240, 1680, 6720, 20160, 4032, 44352, 44352, 576576, 576576, 2882880, 11531520, 196035840, 196035840, 3724680960, 3724680960, 3724680960, 3724680960, 85667662080, 85667662080, 428338310400, 428338310400 ]
[ "nonn", "frac" ]
A037934
[ 35, 5, 7, 3, 19, 11, 29, 1129 ]
[ "fini", "full", "nonn", "tabf", "base" ]
A165819
[ 1, 6, 11, 28, 37, 22, 29, 120, 137, 83, 43, 92, 205, 59, 61, 496, 529, 291, 595, 167, 169, 86, 183, 376, 793, 410, 437, 220, 925, 123, 125, 2016, 2081, 1091, 2211, 583, 293, 1227, 2471, 2536, 2601, 339, 171, 2796, 729, 366, ...
[ "base", "nonn" ]
A264486
[ 1, 10, 36, 212, 2144, 9714, 92052, 581575, 4510937, 31398740, 236553733, 1681262954, 12489549989, 90270132471, 663622115288, 4832089305548, 35389917941640, 258336002558736, 1889497035402309, 13806771114617572 ]
[ "nonn" ]
A068495
[ 6, 56, 260, 780, 992, 1976, 2156, 3696, 5520, 13800, 16256, 19872, 22560, 23688, 25232, 41072, 87000, 89964, 133984, 145888, 366720, 785808, 851760, 1100864, 1235052, 1270208, 1439552, 1470720, 2129400, 2237888, 4729664, 8690112 ]
[ "easy", "nonn" ]
A076012
[ 1, 189, 21546, 1928934, 149767947, 10598527863, 703442942532, 44583546335328, 2730727849782933, 162985193544670500, 9536099260315021000, 549348981049383650000, 3.1261349005300855e+22, 1.761720439805568e+24, 9.85092731843875e+25, 5.473755642102175e+27 ]
[ "nonn", "easy" ]
A123238
[ 32, 1.4252037555834e+39, 1.0669398377366624e+62, 1.854935026981753e+78 ]
[ "easy", "nonn", "less" ]
A289999
[ 13, 49, 217, 937, 3913, 16009, 64777, 260617, 1045513, 4188169, 16764937, 67084297, 268386313, 1073643529, 4294770697, 17179475977, 68718690313, 274876334089, 1099508482057, 4398040219657, 17592173461513, 70368719011849, 281474926379017, 1125899806179337, 450359942604...
[ "nonn", "easy" ]
A132262
[ 1, 2, 7, 29, 130, 611, 2965, 14726, 74443, 381617, 1978582, 10355303, 54628201, 290148890, 1550177791, 8324934533, 44911554826, 243274479131, 1322555721037, 7213659006350, 39462884371891, 216470673634217, 1190382865461742, 6560913758341199 ]
[ "nonn", "easy" ]
A259804
[ 1, 6, 19, 68, 190, 610, 1618, 4870, 12776, 37270, 97264, 277858, 723856, 2039120, 5309076, 14805780, 38549984, 106693682, 277890081, 764597138, 1992327855, 5456154914, 14224333948, 38806355844, 101220914578, 275278038948, 718383950316, 1948531080114 ]
[ "nonn" ]
A284047
[ 1, 2, 3, 8, 5, 6, 11, 20, 23, 18, 35, 24, 19, 10, 7, 12, 17, 42, 25, 4, 9, 14, 15, 22, 57, 32, 27, 52, 37, 30, 13, 28, 33, 40, 39, 34, 45, 16, 31, 70, 69, 80, 21, 26, 41, 56, 51, 50, 53, 48, 65, 36, 71, 60, 2...
[ "nonn" ]
A015243
[ 0, -7, -20, -27, -16, 25, 108, 245, 448, 729, 1100, 1573, 2160, 2873, 3724, 4725, 5888, 7225, 8748, 10469, 12400, 14553, 16940, 19573, 22464, 25625, 29068, 32805, 36848, 41209, 45900, 50933, 56320, 62073 ]
[ "sign", "easy" ]
A117742
[ 0, 0, 0, 1, 1, 1, 1, 2, 3, 4, 1, 4, 9, 16, 25, 1, 8, 27, 64, 125, 216, 2, 17, 82, 257, 626, 1297, 2402, 3, 36, 249, 1032, 3135, 7788, 16821, 32784, 4, 76, 756, 4144, 15700, 46764, 117796, 262336, 531684, 5, 160, 2295, 16...
[ "nonn", "tabl" ]
A108271
[ 19, 23, 31, 47, 79, 2063, 4111, 65551, 8388623 ]
[ "nonn" ]
A137607
[ 361, 180, 90, 45, 338, 169, 276, 138, 69, 326, 163, 279, 221, 250, 125, 298, 149, 286, 143, 289, 216, 108, 54, 27, 347, 187, 267, 227, 247, 237, 242, 121, 300, 150, 75, 323, 199, 261, 230, 115, 303, 209, 256, 128, 64, 32, 16...
[ "nonn", "less" ]
A246751
[ 2, 1, 7, 6, 9, 6, 8, 7, 4, 3, 5, 5, 9, 4, 1, 0, 3, 2, 1, 7, 3, 9, 7, 2, 7, 2, 9, 8, 7, 3, 5, 8, 1, 4, 3, 2, 9, 7, 6, 7, 2, 7, 3, 7, 5, 8, 9, 6, 5, 8, 4, 4, 9, 6, 0, 2, 3, 8, 6, 2, 8, 0, 0, 0...
[ "nonn", "cons" ]
A334025
[ 0, 1, 2, 24, 448, 48896, 89697792, 97792179395584, 1.7939558419558435e+23, 1.9558435879116835e+38, 3.5879116839116873e+62 ]
[ "nonn", "base" ]
A356687
[ 1, 1, 18, 927, 94876, 16251045, 4210190766, 1543550310211, 764096247603480, 493254380867214300, 404269328278061450000, 4.1186208886569687e+23, 5.126908515682299e+26, 7.687759889312407e+29 ]
[ "nonn" ]
A291113
[ 0, 0, 0, 0, 0, 0, 0, 720, 46080, 2073600, 83635200, 3284582400, 130292997120, 5315938467840, 225174409574400, 9949921392153600, 459690572096870400, 22223242784959857000, 1.1241427659265326e+21, 5.946492895469568e+22, 3.28660108355272e+24 ]
[ "nonn" ]
A292813
[ 1, 3, -24, 624, -23040, 1102848, -63320064, 4204118016, -315301920768, 26294301622272, -2410825799172096, 240940701368451070, -26069519382431662000, 3.0366302531994885e+21, -3.789754383593012e+23, 5.046442799525485e+25, -7.143619061783407e+27, 1.0714716733555713e+30, -1.697783103...
[ "sign" ]
A279054
[ 1, 4, 7, 9, 12, 14, 17, 20, 22, 25, 28, 30, 33, 35, 38, 41, 43, 46, 49, 51, 54, 56, 59, 62, 64, 67, 69, 72, 75, 77, 80, 83, 85, 88, 90, 93, 96, 98, 101, 103, 106, 109, 111, 114, 117, 119, 122, 124, 127, 130, 132, 1...
[ "nonn" ]
A388492
[ 1, 0, 4, 3, 2, 1, 4, 0, 7, 5, 7, 7, 1, 5, 0, 1, 3, 9, 7, 3, 1, 8, 4, 2, 4, 9, 6, 7, 0, 1, 0, 7, 4, 2, 5, 7, 9, 9, 6, 0, 5, 5, 7, 5, 7, 1, 1, 3, 2, 5, 9, 3, 8, 1, 2, 6, 2, 8, 0, 7, 4, 7, 5, 3...
[ "nonn", "cons" ]
A183768
[ 2016, 5912192, 19855042560, 70577422755840, 258888921984516100, 968823452179344800000, 3.6761199514964083e+24, 1.409118486309584e+28, 5.443547105200881e+31 ]
[ "nonn" ]
A357414
[ 0, 0, 1, 1, 4, 4, 5, 5, 8, 12, 13, 13, 20, 20, 21, 21, 30, 30, 59, 59, 62, 62, 63, 63, 94, 104, 105, 187, 190, 190, 191, 191, 306, 306, 307, 307, 564, 564, 565, 565, 582, 582, 583, 583, 586, 600, 601, 601, 1120, 1134, ...
[ "nonn" ]
A225399
[ 0, 0, 0, 1, 0, 1, 1, 0, 2, 2, 0, 2, 2, 0, 3, 4, 0, 1, 1, 1, 6, 2, 0, 2, 4, 0, 1, 3, 0, 2, 2, 0, 3, 1, 0, 8, 2, 0, 1, 5, 1, 2, 2, 0, 7, 3, 0, 2, 4, 0, 2, 3, 0, 1, 4, 3, 4, 1, 0, 4, 4, 0, 2, 5...
[ "nonn" ]
A280471
[ 2, 3, 4, 4, 5, 6, 7, 8, 9, 9, 10, 11, 12, 13, 13, 14, 15, 16, 17, 17, 18, 19, 20, 21, 21, 22, 23, 24, 25, 25, 26, 27, 28, 29, 29, 30, 31, 32, 33, 33, 34, 35, 36, 37, 38, 38, 39, 40, 41, 42, 42, 43, 44, 45, 46...
[ "easy", "nonn" ]
A042672
[ 29, 59, 147, 206, 5915, 6121, 18157, 42435, 2479387, 5001209, 12481805, 17483014, 502006197, 519489211, 1540984619, 3601458449, 210425574661, 424452607771, 1059330790203, 1483783397974, 42605265933475, 44089049331449, 130783364596373, 305655778524195 ]
[ "nonn", "cofr", "frac", "easy" ]
A152483
[ 2, 4, 6, 8, 10, 12, 14, 16, 20, 22, 26, 28, 32, 38, 52, 62 ]
[ "fini", "nonn" ]
A203159
[ 1, 6, 44, 400, 4384, 56448, 836352, 14026752, 262803456, 5441863680, 123436892160, 3044235018240, 81112101027840, 2322150583173120, 71092846618214400, 2317820965473485000, 80177108784198450000, 2.932996578806543e+21 ]
[ "nonn" ]
A222357
[ 5, 9, 27, 268, 1054, 7870, 32456, 324520, 1448518, 13349337, 61168861, 582447092, 2667675278, 25167816397, 116215506504, 1101742440518, 5106861518886, 48395601269097, 225029816638813, 2136499931073357, 9958380357597902 ]
[ "nonn" ]
A328066
[ 1, 3, 5, 8, 9, 10, 12, 16, 17, 20, 22, 23, 26, 28, 32, 34, 38, 39, 40, 42, 43, 45, 48, 51, 54, 58, 60, 64, 65, 67, 69, 70, 71, 72, 76, 80, 81, 82, 86, 87, 92, 95, 98, 101, 103, 106, 107, 108, 109, 111, 112, 114, ...
[ "nonn" ]
A171309
[ 4, 15, 53, 138, 483, 1678, 5634, 18915, 62325, 204315, 683210, 2277118, 7559559, 25132611, 83206528, 274465209, 907716605, 3004041236, 9908081432 ]
[ "nonn" ]
A093061
[ 6, 18, 6, 24, 18, 18, 12, 36, 6, 36, 18, 24, 12, 36, 18, 42, 18, 18, 12, 54, 12, 36, 18, 36, 24, 36, 6, 48, 18, 36, 12, 54, 18, 36, 36, 24, 12, 36, 12, 72, 18, 36, 12, 54, 18, 36, 18, 42, 18, 54, 18, 48, 18, 18...
[ "nonn", "easy" ]
A203567
[ 1, 3, 5, 9, 13, 18, 24, 30, 39, 48, 57, 68, 79, 92, 105, 119 ]
[ "nonn", "more" ]
A166204
[ 1, 10, 4, 12, 201, 886, 9309, 405175, 4285591, 161588843, 25012399727, 703336933599, 84913600697770 ]
[ "nonn" ]
A164735
[ 0, 0, 0, 0, 0, 0, 0, 1, 0, 4, 0, 10, 0, 20, 0, 36, 0, 60, 1, 94, 4, 141, 10, 204, 21, 286, 39, 392, 66, 527, 105, 696, 159, 906, 231, 1164, 326, 1477, 449, 1854, 605, 2304, 801, 2836, 1044, 3462, 1341, 4194, 1701, 5044...
[ "base", "nonn" ]
A006010
[ 1, 5, 20, 52, 117, 225, 400, 656, 1025, 1525, 2196, 3060, 4165, 5537, 7232, 9280, 11745, 14661, 18100, 22100, 26741, 32065, 38160, 45072, 52897, 61685, 71540, 82516, 94725, 108225, 123136, 139520, 157505, 177157, 198612, 221940, 247285, 27472...
[ "nonn", "easy" ]
A297912
[ 1, 104, 144, 1281, 10809, 86201, 789026, 6952444, 62368324, 561827959, 5044716757, 45445761023, 409165864059, 3684640201888, 33186785709821, 298897784701392, 2692156370359236, 24248139995168504, 218403311907684500 ]
[ "nonn" ]
A158200
[ 1, 1, -1, 1, -2, 1, 1, -7, 7, -1, 1, -8, 14, -8, 1, 1, -13, 46, -46, 13, -1, 1, -18, 99, -196, 99, -18, 1, 1, -37, 279, -763, 763, -279, 37, -1, 1, -38, 316, -1042, 1526, -1042, 316, -38, 1, 1, -43, 486, -2266, 4884, ...
[ "sign", "tabl", "uned" ]
A126295
[ 1, 1, 2, 2, 2, 3, 4, 5, 4, 4, 4, 4, 4, 7, 8, 7, 6, 10 ]
[ "nonn" ]
A292787
[ 3, 2, 3, 4, 5, 3, 7, 8, 9, 5, 11, 4, 13, 7, 6, 16, 17, 9, 19, 5, 7, 11, 23, 9, 25, 13, 27, 8, 29, 6, 31, 32, 12, 17, 15, 9, 37, 19, 13, 16, 41, 7, 43, 12, 10, 23, 47, 16, 49, 25, 18, 13, 53, 27, 11, 8, 19...
[ "nonn", "base" ]
A227087
[ 11, 62, 302, 1339, 5517, 21335, 77706, 267130, 868999, 2683571, 7894237, 22199557, 59882610, 155443180, 389435848, 944177113, 2220593929, 5077160511, 11307063564, 24570317758, 52177373347, 108436508850, 220822419206 ]
[ "nonn" ]