id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A193433
[ 1, 3, 6, 18, 18, 42, 38, 93, 84, 126, 102, 186, 180, 324, 198, 342, 258, 540, 434, 546, 402, 756, 588, 972, 578, 942, 678, 1332, 948, 1266, 972, 1596, 1302, 1980, 1260, 1842, 1298, 2484, 1842, 2286, 1602, 2613, 2124, 3534, 2100, 3042, 2220, 4536, 2772, 3606 ]
[ "nonn" ]
A105516
[ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6 ]
[ "nonn", "base" ]
A076046
[ 0, 1, 3, 15, 4095 ]
[ "fini", "full", "nonn" ]
A083383
[ 1, 2, 9, 26, 42, 57, 75, 76, 103, 116, 122, 143, 151, 172, 191, 197, 224, 236, 251, 266, 288, 316, 327, 338, 356, 372, 385, 401, 451, 482, 490, 501, 541, 558, 578, 586, 621, 636, 644, 670, 678, 692, 724, 735, 776, 801, 826, 851, 864, 872, 890, 906, 915, 924 ]
[ "nonn", "easy" ]
A341935
[ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 21, 12, 23, 14, 25, 16, 27, 18, 29, 38, 47, 36, 45, 34, 43, 32, 41, 30 ]
[ "nonn", "base", "fini", "full" ]
A346515
[ 0, 2027025, 10321920, 34459425, 92897280, 218243025, 464486400, 916620705, 1703116800, 3011753745, 5109350400, 8365982625, 13284311040, 20534684625, 30996725760, 45808142625, 66421555200, 94670161425, 132843110400, 183771489825, 250925875200, 338526428625, 451666575360 ]
[ "nonn", "easy" ]
A212351
[ 6, 8, 12, 24, 40, 80, 128, 256, 512, 1024, 2048, 4096, 8192, 16384, 32768, 65536, 131072, 262144, 524288, 1048576, 2097152, 4194304, 8388608, 16777216, 33554432, 67108864, 134217728, 268435456, 536870912, 1073741824, 2147483648, 4294967296, 8589934592 ]
[ "nonn" ]
A313150
[ 1, 4, 9, 14, 20, 26, 30, 35, 41, 45, 51, 57, 59, 64, 72, 75, 80, 89, 91, 93, 102, 107, 109, 117, 123, 124, 130, 138, 142, 146, 152, 157, 160, 165, 173, 178, 180, 187, 194, 195, 201, 210, 211, 214, 224, 228, 230, 239, 244, 245 ]
[ "nonn" ]
A040510
[ 23, 9, 4, 1, 1, 22, 1, 1, 4, 9, 46, 9, 4, 1, 1, 22, 1, 1, 4, 9, 46, 9, 4, 1, 1, 22, 1, 1, 4, 9, 46, 9, 4, 1, 1, 22, 1, 1, 4, 9, 46, 9, 4, 1, 1, 22, 1, 1, 4, 9, 46, 9, 4, 1, 1, 22, 1, 1, 4, 9, 46, 9, 4, 1, 1, 22, 1, 1, 4, 9, 46, 9, 4, 1, 1, 22, 1, 1, 4, 9, 46, 9, 4, 1, 1 ]
[ "nonn", "cofr", "easy", "less" ]
A349890
[ 1, 3, 2, 7, 6, 4, 11, 10, 8, 5, 19, 18, 16, 13, 9, 27, 26, 24, 21, 17, 12, 35, 34, 32, 29, 25, 20, 14, 43, 42, 40, 37, 33, 28, 22, 15, 59, 58, 56, 53, 49, 44, 38, 31, 23, 75, 74, 72, 69, 65, 60, 54, 47, 39, 30, 91, 90, 88, 85, 81, 76, 70, 63, 55, 46, 36, 107, 106, 104, 101, 97, 92, 86, 79, 71, 62, 52, 41 ]
[ "nonn", "easy", "tabl" ]
A164357
[ 1, 4, 5, 0, -5, -4, 0, 4, 5, 0, -5, -4, 0, 4, 5, 0, -5, -4, 0, 4, 5, 0, -5, -4, 0, 4, 5, 0, -5, -4, 0, 4, 5, 0, -5, -4, 0, 4, 5, 0, -5, -4, 0, 4, 5, 0, -5, -4, 0, 4, 5, 0, -5, -4, 0, 4, 5, 0, -5, -4, 0, 4, 5, 0, -5, -4, 0, 4, 5, 0, -5, -4, 0, 4, 5, 0, -5, -4 ]
[ "sign", "easy" ]
A150683
[ 1, 2, 8, 26, 116, 428, 1998, 7846, 37336, 152208, 732226, 3060418, 14830916, 63105628, 307405454, 1325797950, 6483199136, 28258790888, 138595056794, 609285087066, 2995224031548, 13260539061908, 65311730280966, 290865915803798, 1434828620260472, 6422339118113504, 31722512524233360, 142611202226642160 ]
[ "nonn", "walk" ]
A097339
[ 1, 3, 12, 35, 80, 157, 280, 471, 768, 1241, 2024, 3379, 5824, 10389, 19128, 36143, 69632, 135985, 267976, 531147, 1056576, 2106413, 4204952, 8400775, 16791040, 33570057, 67126440, 134237411, 268457408, 536895301, 1073768824, 2147513439 ]
[ "easy", "nonn" ]
A118049
[ 1, 5, 20, 73, 245, 770, 2319, 6666, 18574, 49909, 131011, 334703, 839703, 2061763, 4984321, 11838917, 27743676, 64017152, 145870081, 327993788, 729271170, 1601769539, 3480548548, 7482752383, 15933936346, 33593546659, 70181698046 ]
[ "nonn" ]
A233920
[ 98, 4010, 405004, 117016814, 100717013560, 272824817463304, 2356133940564872700, 6.58538429916546e+22 ]
[ "nonn" ]
A149698
[ 1, 1, 5, 17, 69, 267, 1167, 4855, 21419, 92169, 413653, 1820575, 8237365, 36789927, 167756317, 757342581, 3471510325, 15797575547, 72748645289, 333122881165, 1539530130895, 7084568397845, 32844125083437, 151753994554771, 705352964589465, 3269966289899371, 15233634774302208, 70822405260256390 ]
[ "nonn", "walk" ]
A288877
[ 1, 264, 8568, 231456, 6214872, 166719024, 4472485344, 119980322880, 3218631807384, 86344077536616, 2316294684846288, 62137684699355230, 1666926011246777000, 44717506621139120000, 1.1996065721695158e+21, 3.218104131306814e+22 ]
[ "nonn" ]
A078020
[ 1, 0, -2, -2, 2, 6, 2, -10, -14, 6, 34, 22, -46, -90, 2, 182, 178, -186, -542, -170, 914, 1254, -574, -3082, -1934, 4230, 8098, -362, -16558, -15834, 17282, 48950, 14386, -83514, -112286, 54742, 279314, 169830, -388798, -728458, 49138, 1506054, 1407778, -1604330, -4419886, -1211226, 7628546 ]
[ "sign", "easy" ]
A046329
[ 8, 44, 66, 99, 171, 212, 222, 242, 282, 292, 333, 343, 363, 404, 434, 474, 494, 555, 575, 595, 606, 646, 747, 777, 909, 969, 1001, 1221, 1331, 1551, 1771, 2222, 2882, 3333, 3553, 4334, 4994, 5335, 5555, 5665, 5885, 5995, 6226, 6446, 6886, 7337, 7557 ]
[ "nonn", "base" ]
A269661
[ 1, 9, 549, 202581, 425622681, 4907003889249, 302963327126122500, 9.849004505210403e+22, 1.6654479487225194e+29, 1.451779137596369e+36, 6.47984501590107e+43 ]
[ "nonn", "easy" ]
A346160
[ 0, 25, 1041, 15655, 637854, 2507860, 35577568 ]
[ "nonn", "more" ]
A302126
[ 0, 2, 1, 1, 1, 3, 2, 4, 3, 7, 5, 11, 8, 18, 13, 29, 21, 47, 34, 76, 55, 123, 89, 199, 144, 322, 233, 521, 377, 843, 610, 1364, 987, 2207, 1597, 3571, 2584, 5778, 4181, 9349, 6765, 15127, 10946, 24476, 17711, 39603, 28657, 64079, 46368, 103682, 75025, 167761 ]
[ "nonn", "easy" ]
A329553
[ 1, 2, 21, 195, 1365, 25935, 435435 ]
[ "nonn", "more" ]
A178324
[ 1, 1, 2, 6, 26, 146, 1024, 8776, 89670, 1071174, 14749528, 231333872, 4090080388, 80808196548, 1770893277532, 42769289395020, 1131848169152498, 32655896028179970, 1022576267852973400, 34612454839065740000 ]
[ "nonn" ]
A024530
[ 0, 1, 1, 11, 47, 727, 7141, 151427, 2366603, 64131559, 1636722341, 57208085801, 1916138684507, 85982424199597, 3392993977055461, 172553478253276700, 8530444564835173000, 535885387802465300000, 3.076624830579617e+22 ]
[ "nonn", "frac", "easy", "nice" ]
A324792
[ 5, 5, 9, 15, 25, 45, 77, 133, 231, 401, 693, 1201, 2081, 3603, 6241, 10809, 18723, 32429, 56169, 97287, 168505, 291861, 505517, 875581, 1516551, 2626743, 4549653, 7880231, 13648959, 23640691, 40946879, 70922073, 122840635, 212766221, 368521905, 638298663 ]
[ "nonn" ]
A382198
[ 3, 14, 153, 2169, 48165, 125769, 327174495 ]
[ "nonn", "base", "fini", "full" ]
A081697
[ 1, 1, 10, 145, 2755, 64660, 1804705, 58336855, 2141867440, 87998832685, 3998289746065, 198991311832840, 10762795518750120, 628439018694857900, 39390402253060920000, 2.6374690710971797e+21, 1.878484129831677e+23, 1.4178423030415044e+25 ]
[ "nonn" ]
A137656
[ 0, 1, 3, 5, 11, 6, 8, 14, 16, 30, 26, 23, 25, 39, 45, 47, 61, 48, 49, 63, 70, 100, 79, 109, 111, 126, 132, 138, 143, 150, 168, 218, 237, 250, 273, 349, 371, 376, 453, 459, 471, 501, 503, 505, 506, 537, 558, 584, 589, 507, 518, 508, 520, 539, 560, 586, 645, 540 ]
[ "nonn" ]
A141104
[ 2, 4, 6, 10, 12, 14, 18, 20, 22, 26, 28, 30, 34, 36, 38, 40, 44, 46, 48, 52, 54, 56, 60, 62, 64, 68, 70, 72, 74, 78, 80, 82, 86, 88, 90, 94, 96, 98, 102, 104, 106, 108, 112, 114, 116, 120, 122, 124, 128, 130, 132, 136, 138, 140, 142, 146, 148, 150, 154, 156, 158, 162 ]
[ "nonn" ]
A224522
[ 4297, 43331, 404851, 1895359, 13626257, 17051707, 20831323, 391995431, 1391048047, 4758958741, 6291356009, 20068818197, 53241805651, 82490815123, 63816175447, 482423533897, 2209016910131, 738832927927, 4442109925217, 4872634110067, 12644461143649, 10653514291843, 15712145060693, 111113196467011 ]
[ "nonn", "hard" ]
A048564
[ 1, 5, 108, 232679, 10800002482161878, 5.012917092419287e+47 ]
[ "nonn", "base" ]
A177870
[ 2, 3, 5, 6, 1, 9, 4, 4, 9, 0, 1, 9, 2, 3, 4, 4, 9, 2, 8, 8, 4, 6, 9, 8, 2, 5, 3, 7, 4, 5, 9, 6, 2, 7, 1, 6, 3, 1, 4, 7, 8, 7, 7, 0, 4, 9, 5, 3, 1, 3, 2, 9, 3, 6, 5, 7, 3, 1, 2, 0, 8, 4, 4, 4, 2, 3, 0, 8, 6, 2, 3, 0, 4, 7, 1, 4, 6, 5, 6, 7, 4, 8, 9, 7, 1, 0, 2, 6, 1, 1, 9, 0, 0, 6, 5, 8, 7, 8, 0, 0, 9, 8, 6, 6, 1, 1 ]
[ "nonn", "cons", "easy" ]
A274327
[ 1, 4, 14, 40, 104, 248, 560, 1200, 2474, 4924, 9520, 17928, 33008, 59528, 105408, 183536, 314744, 532208, 888382, 1465208, 2389808, 3857456, 6166096, 9766576, 15336816, 23888844, 36924656, 56659296, 86341664, 130710104, 196640576, 294059872, 437232746, 646561792 ]
[ "nonn" ]
A257544
[ 1, 1, 2, 9, 48, 330, 2760, 26670, 295680, 3686760, 51067800, 778239000, 12937478400, 232997965200, 4518981066600, 93905637625800, 2081477759961600, 49020847858382400, 1222400311155223300, 32175639432544610000, 891491725439102000000, 2.5935626681521132e+22, 7.904593888554417e+23 ]
[ "nonn" ]
A169067
[ 1, 6, 30, 150, 750, 3750, 18750, 93750, 468750, 2343750, 11718750, 58593750, 292968750, 1464843750, 7324218750, 36621093750, 183105468750, 915527343750, 4577636718750, 22888183593750, 114440917968750, 572204589843750 ]
[ "nonn" ]
A085764
[ 10, 1, 2, 3, 4, 51, 61, 66, 76, 86, 96, 111, 121, 131, 141, 157, 167, 177, 187, 197, 202, 212, 222, 232, 242, 258, 268, 278, 288, 298, 303, 313, 323, 333, 343, 359, 369, 379, 389, 399, 404, 414, 424, 434, 444, 460, 470, 480, 490, 500, 501, 5101, 5201, 5301 ]
[ "nonn", "base" ]
A380019
[ 1, 1, 7, 78, 1249, 26100, 673101, 20655082, 735030913, 29759100264, 1350726180085, 67929497104326, 3749296817347137, 225321905599163300, 14646040616615434000, 1.0238184609126284e+21, 7.658966046952285e+22, 6.105092923000192e+24, 5.165865099385169e+26 ]
[ "nonn" ]
A336706
[ 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 1, 1, 3, 5, 4, 1, 1, 4, 11, 14, 9, 1, 1, 5, 20, 45, 42, 21, 1, 1, 6, 32, 113, 197, 132, 51, 1, 1, 7, 47, 234, 688, 903, 429, 127, 1, 1, 8, 65, 424, 1854, 4404, 4279, 1430, 323, 1, 1, 9, 86, 699, 4159, 15490, 29219, 20793, 4862, 835 ]
[ "nonn", "tabl" ]
A067065
[ 20, 26, 41, 44, 65, 83, 132, 133, 140, 182, 188, 195, 249, 287, 299, 420, 546, 564, 620, 644, 764, 806, 861, 897, 1001, 1115, 1169, 1271, 28644, 32172, 35052, 39116, 40796, 41478, 42315, 47492, 50162, 51513, 52143, 53745, 54033, 54483, 56427, 56642 ]
[ "nonn" ]
A363128
[ 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 3, 6, 9, 18, 25, 44, 60, 96, 122, 188, 243, 344, 442, 615, 769, 1047, 1308, 1722, 2150, 2791, 3430, 4405, 5401, 6803, 8326, 10408, 12608, 15641, 18906, 23179, 27935, 34061, 40778, 49451, 59038, 71060, 84604, 101386, 120114, 143358 ]
[ "nonn" ]
A341592
[ 1, 1, 1, 1, 1, 2, 1, 0, 1, 2, 1, 1, 1, 2, 2, 0, 1, 1, 1, 2, 2, 2, 1, 1, 1, 2, 0, 2, 1, 4, 1, 0, 2, 2, 2, 1, 1, 2, 2, 1, 1, 4, 1, 2, 1, 2, 1, 0, 1, 1, 2, 2, 1, 0, 2, 1, 2, 2, 1, 3, 1, 2, 1, 0, 2, 4, 1, 2, 2, 4, 1, 0, 1, 2, 1, 2, 2, 4, 1, 1, 0, 2, 1, 3, 2, 2, 2 ]
[ "nonn" ]
A129593
[ 1, 2, 4, 3, 8, 9, 9, 9, 5, 16, 27, 27, 6, 25, 27, 25, 6, 27, 25, 25, 25, 25, 7, 32, 81, 81, 18, 125, 81, 125, 18, 18, 15, 125, 15, 15, 49, 81, 125, 125, 15, 49, 18, 15, 18, 81, 125, 15, 125, 15, 49, 125, 49, 15, 125, 49, 15, 15, 125, 49, 49, 49, 49, 49, 11, 64, 243, 243, 54 ]
[ "nonn" ]
A102838
[ 54, 250, 375, 686, 1029, 1715, 2662, 3993, 4394, 6591, 6655, 9317, 9826, 10985, 13718, 14739, 15379, 20577, 24167, 24334, 24565, 34295, 34391, 36501, 48013, 48778, 54043, 59582, 60835, 63869, 73167, 75449, 85169, 89167, 89373 ]
[ "easy", "nonn" ]
A376495
[ 1, 0, 0, 6, 24, 120, 3240, 40320, 463680, 11491200, 248572800, 4869849600, 135896745600, 4017466252800, 113150157120000, 3765622699238400, 137549036072448000, 5019223860338688000, 199794776937044900000, 8.636618647667289e+21 ]
[ "nonn" ]
A098258
[ 1, 532, 282491, 150002189, 79650879868, 42294467207719, 22458282436418920, 11925305679271240000, 6.332314857410591e+21, 3.362447263979345e+24, 1.7854531648581747e+27, 9.480722680924268e+29 ]
[ "nonn", "easy" ]
A034271
[ 0, 1, 15, 125, 814, 4641, 24388, 121380, 581400, 2707386, 12339569, 55304535, 244567050, 1069784625, 4637437560, 19951650840, 85290143760, 362608278750, 1534330716750, 6465583372794, 27147098904156, 113618646478106, 474177584413720, 1973918305023000, 8198353999348240 ]
[ "nonn" ]
A301075
[ 1, 4, 11, 20, 36, 62, 92, 119, 152, 199, 251, 305, 355, 424, 492, 564, 651, 722, 820, 906, 1007, 1131, 1226, 1338, 1443, 1591, 1729, 1855, 1959, 2109, 2300, 2459, 2593, 2713, 2923, 3097, 3309, 3501, 3643, 3824, 4039, 4306, 4481, 4662, 4875, 5143, 5407 ]
[ "nonn" ]
A197872
[ 1, 4, 28, 457, 19312, 1569476, 297589596, 128297106268, 121501477787448 ]
[ "nonn" ]
A317959
[ 10, 10010, 10010110010, 1.001011001011001e+22, 1.001011001011001e+46, 1.001011001011001e+94 ]
[ "nonn" ]
A151752
[ 5, 75, 375, 9375, 59375, 359375, 3359375, 93359375, 193359375, 3193359375, 73193359375, 773193359375, 3773193359375, 73773193359375, 773773193359375, 5773773193359375, 15773773193359376, 515773773193359360, 7515773773193359000, 97515773773193360000 ]
[ "nonn", "base" ]
A297301
[ 1, 1, 5, 10, 21, 50, 130, 332, 840, 2128, 5408, 13772, 35102, 89465, 227961, 580788, 1479748, 3770356, 9606981, 24478804, 62372090, 158923930, 404938148, 1031783666, 2628989168, 6698674670, 17068245866, 43489945955, 110812526805 ]
[ "nonn" ]
A112281
[ 1, 2, -4, 15, -60, 268, -1275, 6322, -32280, 168525, -895272, 4823088, -26284036, 144623580, -802297080, 4482108215, -25193038332, 142365182220, -808318895340, 4608847319040, -26378042959008, 151485697164867, -872650786462376, 5041141102888080 ]
[ "sign" ]
A077582
[ 1, 4, 7, 16, 16, 54, 29, 64, 61, 124, 67, 216, 92, 228, 211, 256, 154, 486, 191, 500, 385, 532, 277, 864, 391, 732, 547, 914, 436, 1688, 497, 1024, 895, 1228, 890, 1944, 704, 1524, 1232, 2000, 862, 3090, 947, 2128, 1897, 2212, 1129, 3456, 1401, 3124, 2068 ]
[ "nonn" ]
A140628
[ 71, 239, 311, 599, 719, 1151, 1319, 1439, 1511, 1559, 1871, 2111, 2879, 2999, 3359, 3719, 3911, 4079, 4271, 4751, 4871, 5039, 5279, 5591, 5639, 6311, 6719, 6791, 6959, 7079, 8039, 8951, 8999, 9239, 9431, 9479, 9551, 9719, 9791, 9839, 10151 ]
[ "nonn", "easy" ]
A167907
[ 3, 5, 7, 10, 11, 13, 15, 17, 19, 21, 23, 26, 29, 30, 29, 30, 35, 37, 39, 41, 43, 46, 47, 51, 53, 51, 53, 57, 59, 61, 65, 67, 65, 66, 71, 73, 77, 78, 77, 82, 85, 83, 85, 89, 91, 93, 95, 97, 101, 102, 101, 105, 107, 109, 111, 113, 115, 118, 123, 122, 119, 122, 127, 129, 131 ]
[ "nonn" ]
A342711
[ 1, 3, 6, 9, 13, 17, 22, 27, 32, 38, 44, 50, 57, 64, 71, 78, 86, 94, 102, 110, 119, 128, 137, 146, 155, 165, 175, 185, 195, 205, 216, 227, 238, 249, 260, 271, 283, 295, 307, 319, 331, 343, 356, 369, 382, 395, 408, 421, 434, 448, 462, 476, 490, 504, 518, 532, 547 ]
[ "nonn" ]
A056820
[ 1, 2, 6, 20, 48, 132, 240, 528, 1364, 4180, 7560, 20784, 42768, 70992, 151632, 446208, 986880, 1688400, 4006800, 6080256, 13843440, 42125380, 79567488, 152712000, 292573440, 526051328, 797636448, 2942476992, 7257012896 ]
[ "nonn" ]
A074215
[ 1, 2, 3, 4, 7, 8, 9, 11, 13, 14, 16, 17, 19, 21, 22, 23, 26, 27, 28, 29, 31, 32, 33, 34, 37, 38, 39, 41, 43, 44, 46, 47, 49, 51, 52, 53, 57, 58, 59, 61, 62, 63, 64, 67, 68, 69, 71, 73, 74, 76, 77, 79, 81, 82, 83, 86, 87, 88, 89, 92, 93, 94, 97, 98, 99, 101 ]
[ "easy", "nonn" ]
A311408
[ 1, 4, 8, 12, 17, 20, 25, 29, 34, 39, 44, 48, 52, 56, 59, 63, 67, 72, 78, 83, 87, 92, 95, 97, 103, 104, 111, 116, 122, 125, 132, 134, 136, 142, 143, 149, 155, 160, 163, 171, 173, 175, 182, 181, 189, 193, 199, 200, 210, 211 ]
[ "nonn" ]
A146386
[ 1, 1, 1, 1, 1, 2, 1, 4, 1, 6, 3, 16, 10, 59, 29, 271, 100, 1436, 387, 8334, 2276, 60777, 17581, 593102, 155034, 7275019, 1632582, 107601705, 20304423, 1902586023 ]
[ "nonn" ]
A069153
[ 0, 1, 3, 7, 10, 19, 21, 35, 39, 56, 55, 91, 78, 113, 118, 155, 136, 208, 171, 252, 234, 287, 253, 395, 310, 404, 390, 497, 406, 614, 465, 651, 586, 698, 626, 910, 666, 875, 822, 1060, 820, 1202, 903, 1239, 1144, 1289, 1081, 1643, 1197, 1581, 1414, 1736 ]
[ "easy", "nonn" ]
A300522
[ 10, 120, 455, 1140, 2300, 4060, 6545, 9880, 14190, 19600, 26235, 34220, 43680, 54740, 67525, 82160, 98770, 117480, 138415, 161700, 187460, 215820, 246905, 280840, 317750, 357760, 400995, 447580, 497640, 551300, 608685, 669920, 735130, 804440, 877975, 955860, 1038220, 1125180 ]
[ "nonn", "easy" ]
A249659
[ 2, 53, 164, 485, 1408, 3221, 6678, 12377, 20572, 33877, 51568, 74947, 105310, 143727, 195754, 259799, 336688, 428339, 536286, 671719, 828944, 1009781, 1216838, 1452459, 1732578, 2047055, 2399248, 2791887, 3227102, 3727571, 4279592, 4886643 ]
[ "nonn" ]
A145951
[ 3, 12, 37, 62, 109, 150, 197, 25, 56, 125, 172, 226, 326, 395, 47, 100, 213, 282, 358, 502, 593, 69, 144, 226, 392, 490, 678, 791, 91, 188, 292, 502, 622, 854, 989, 0, 232, 358, 612, 753, 1030, 1187, 0, 276, 424, 722, 885, 1055, 1385 ]
[ "base", "easy", "nonn" ]
A176775
[ 2, 2, 2, 3, 2, 2, 3, 4, 2, 3, 2, 2, 5, 4, 2, 3, 2, 2, 6, 4, 2, 3, 5, 2, 3, 7, 2, 3, 2, 2, 3, 4, 5, 8, 2, 2, 3, 4, 2, 3, 2, 2, 9, 4, 2, 3, 7, 2, 6, 4, 2, 3, 10, 2, 3, 4, 2, 3, 2, 2, 3, 8, 5, 11, 2, 2, 3, 7, 2, 3, 2, 2, 5, 4, 2, 12, 2, 2, 9, 4, 2, 3, 5, 2, 3, 4, 2, 3, 13, 8, 3, 4, 5, 6, 2, 2, 3, 10, 2, 3, 2, 2 ]
[ "nonn" ]
A112684
[ 1, 8, 22, 45, 138, 415, 916, 3998, 13142, 38763, 60718, 44686, 121298, 2068731, 11214378, 25158877, 3909879, 299954193, 977046702, 3028468981, 1107563239, 2983913960, 91973871622 ]
[ "nonn" ]
A321240
[ 1, 2, 10, 26, 86, 210, 594, 1394, 3530, 8006, 18842, 41258, 92190, 195714, 419538, 867050, 1797568, 3625758, 7311382, 14431294, 28416514, 55010142, 106101558, 201814518, 382213566, 715473554, 1333083950, 2459265058, 4515151234, 8218572030, 14888270366, 26766878302 ]
[ "nonn" ]
A196718
[ 1, 3, 3, 4, 6, 4, 5, 14, 14, 5, 8, 36, 40, 36, 8, 12, 83, 171, 171, 83, 12, 17, 192, 543, 1142, 543, 192, 17, 25, 468, 1984, 6078, 6078, 1984, 468, 25, 37, 1112, 7368, 36590, 56137, 36590, 7368, 1112, 37, 54, 2624, 25698, 222112, 573131, 573131, 222112, 25698, 2624 ]
[ "nonn", "tabl" ]
A070099
[ 0, 0, 1, 0, 1, 0, 1, 1, 1, 1, 2, 1, 3, 1, 1, 2, 4, 1, 4, 2, 2, 2, 5, 1, 4, 2, 4, 3, 6, 2, 6, 3, 4, 3, 5, 3, 8, 3, 4, 3, 8, 3, 9, 5, 5, 4, 10, 3, 9, 4, 6, 5, 11, 4, 8, 5, 7, 6, 12, 3, 13, 6, 8, 7, 9, 4, 14, 7, 8, 5, 15, 5, 15, 7, 9, 8, 13, 6, 16, 6, 11, 8, 17, 5, 13 ]
[ "nonn" ]
A131841
[ 0, 0, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 2, 2, 2, 3, 2, 2, 2, 2, 2, 3, 2, 2, 2, 2, 3, 2, 3, 3, 3, 3, 2, 3, 2, 2, 2, 3, 3, 3, 3, 3, 2, 2, 3, 3, 3, 3, 3, 3, 2, 3, 2, 3, 2, 3, 3, 3, 3, 3, 3, 3, 2, 2, 3, 2, 2, 3, 3, 3, 2, 2, 2, 2, 2, 3, 2, 2, 2, 3, 3, 2, 3, 3, 3 ]
[ "easy", "nonn", "base" ]
A361318
[ 1, 2, 3, 4, 4, 6, 7, 7, 11, 13, 13, 10, 7, 15, 16, 15, 9, 20, 18, 14, 25, 24, 19, 25, 15, 27, 28, 30, 18, 36, 13, 21, 17, 29, 40, 33, 24, 28, 38, 31, 29, 45, 34, 27, 28, 44, 27, 60, 36, 52, 46, 26, 51, 42, 55, 33, 66, 40, 24, 37, 49, 29, 47, 57, 34, 68, 49, 44 ]
[ "nonn" ]
A062563
[ 1, -1, -3, -3, -5, -1, -3, -3, -3, 1, -1, -1, -3, 1, 5, 5, 3, 3, 1, 1, 5, 9, 7, 7, 7, 11, 11, 11, 9, 1, -1, -1, 3, 7, 11, 11, 9, 13, 17, 17, 15, 7, 5, 5, 5, 9, 7, 7, 7, 7, 11, 11, 9, 9, 13, 13, 17, 21, 19, 19, 17, 21, 21, 21, 25, 17, 15, 15, 19, 11, 9, 9, 7, 11, 11, 11, 15, 7, 5, 5, 5, 9, 7, 7, 11, 15, 19, 19, 17, 17, 21, 21, 25, 29, 33, 33, 31 ]
[ "sign" ]
A136085
[ 3, 5, 29, 59, 71, 83, 101, 131, 149, 173, 239, 251, 281, 311, 401, 443, 449, 461, 491, 509, 563, 569, 653, 701, 719, 743, 761, 929, 953, 1109, 1151, 1193, 1223, 1259, 1289, 1301, 1373, 1451, 1511, 1553, 1571, 1583, 1613, 1619, 1811, 1913, 1931, 1949, 2039 ]
[ "nonn" ]
A388426
[ 1, 1, 1, 1, 5, 1, 1, 16, 16, 1, 1, 43, 121, 43, 1, 1, 106, 666, 666, 106, 1, 1, 249, 3089, 6649, 3089, 249, 1, 1, 568, 12916, 51976, 51976, 12916, 568, 1, 1, 1271, 50481, 348471, 641281, 348471, 50481, 1271, 1, 1, 2806, 188398, 2106622, 6488230, 6488230, 2106622, 188398, 2806, 1 ]
[ "nonn", "tabl" ]
A388121
[ 6, 0, 8, 1, 0, 4, 1, 4, 5, 2, 3, 1, 0, 0, 0, 2, 3, 9, 4, 8, 2, 9, 4, 9, 4, 7, 3, 6, 5, 0, 3, 2, 0, 6, 1, 2, 9, 4, 3, 6, 7, 2, 4, 7, 5, 2, 4, 9, 5, 3, 7, 9, 7, 7, 1, 5, 8, 9, 0, 1, 3, 4, 6, 6, 8, 6, 5, 0, 4, 1, 8, 9, 5, 3, 1, 8, 5, 8, 7, 6, 4, 5, 0, 9, 3, 8, 4 ]
[ "nonn", "cons" ]
A034574
[ 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, 11, 51, 192, 661, 2093, 6309, 18216, 51010, 139094, 371303, 972748, 2507744, 6371523, 15977886, 39585753, 96982448, 235110291, 564332517, 1341813900 ]
[ "nonn" ]
A325346
[ 0, 1, 0, 2, 0, 3, 0, 5, 1, 7, 2, 12, 5, 17, 10, 27, 18, 40, 31, 62, 52, 90, 83, 137, 131, 199, 201, 294, 304, 425, 452, 616, 665, 878, 967, 1254, 1390, 1767, 1980, 2486, 2799, 3464, 3924, 4811, 5463, 6629, 7555, 9103, 10384, 12418 ]
[ "nonn", "easy" ]
A240853
[ 0, 0, 0, 1, 0, 0, 2, 1, 1, 3, 2, 3, 5, 5, 7, 8, 9, 12, 16, 16, 19, 27, 29, 34, 42, 47, 55, 66, 77, 89, 105, 117, 136, 162, 182, 209, 242, 274, 313, 360, 405, 463, 530, 595, 675, 765, 860, 970, 1099, 1233, 1384, 1559, 1743, 1954, 2191, 2445, 2734, 3057, 3403 ]
[ "nonn", "easy" ]
A204321
[ 4, 12, 132, 17292, 298995972, 89398590973228820, 7.992108067998668e+33, 6.38737913705694e+67 ]
[ "nonn" ]
A285599
[ 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1 ]
[ "nonn", "easy" ]
A112402
[ 1, 2, 3, 4, 5, 6, 8, 10, 12, 14, 16, 24, 48, 120 ]
[ "nonn", "fini", "full" ]
A143373
[ 1, 1, 1, 3, 5, 9, 17, 30, 55, 100, 181, 330, 599, 1088, 1978, 3593, 6529, 11864, 21556, 39169, 71171, 129319, 234978, 426961, 775801, 1409655, 2561384, 4654113, 8456664, 15366012, 27920509 ]
[ "nonn", "easy" ]
A003042
[ 1, 2, 12, 2688, 1813091520, 7.167642744514177e+22 ]
[ "nonn", "nice", "hard", "more" ]
A106939
[ 5, 79, 167, 359, 373, 577, 617, 877, 881, 947, 1213, 1223, 1231, 1567, 1741, 1861, 1889, 2179, 2347, 2381, 2521, 2539, 2633, 2789, 2843, 3203, 3433, 3659, 3701, 3719, 3823, 4049, 4051, 4127, 4297, 4549, 4871, 4973, 4999, 5297, 5477, 5507 ]
[ "nonn", "easy" ]
A022643
[ 1, 15, 135, 950, 5670, 30003, 144680, 647055, 2717760, 10820640, 41128374, 150073470, 528074655, 1798537380, 5947216050, 19142919543, 60113026305, 184513760775, 554517086825, 1634047143090, 4727605374594, 13444544485435, 37620762642885, 103678546403985, 281639925782930 ]
[ "nonn" ]
A193734
[ 1, 1, 2, 1, 6, 8, 1, 10, 32, 32, 1, 14, 72, 160, 128, 1, 18, 128, 448, 768, 512, 1, 22, 200, 960, 2560, 3584, 2048, 1, 26, 288, 1760, 6400, 13824, 16384, 8192, 1, 30, 392, 2912, 13440, 39424, 71680, 73728, 32768, 1, 34, 512, 4480, 25088, 93184, 229376, 360448, 327680, 131072 ]
[ "nonn", "tabl" ]
A158905
[ 1, 3, 1, 6, 1, 1, 11, 2, 1, 1, 16, 2, 1, 1, 1, 25, 3, 2, 1, 1, 1, 32, 3, 2, 1, 1, 1, 1, 44, 4, 2, 2, 1, 1, 1, 1, 55, 4, 3, 2, 1, 1, 1, 1, 1, 70, 5, 3, 2, 2, 1, 1, 1, 1, 1, 81, 5, 3, 2, 2, 1, 1, 1, 1, 1, 1, 104, 6, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1 ]
[ "nonn", "tabl" ]
A032867
[ 1, 2, 3, 4, 5, 8, 9, 10, 12, 13, 14, 15, 16, 17, 18, 19, 21, 22, 23, 32, 33, 34, 35, 37, 38, 39, 42, 43, 48, 49, 50, 51, 53, 54, 55, 58, 59, 63, 64, 68, 69, 72, 73, 74, 76, 77, 78, 79, 84, 85, 88, 89, 90, 92, 93, 94, 95, 128, 132, 133, 136, 137 ]
[ "nonn", "base" ]
A049243
[ 0, 2, 1, 0, 4, 4, 1, 4, 0, 4, 1, 4, 3, 2, 1, 0, 4, 4, 1, 4, 4, 4, 1, 4, 0, 4, 1, 4, 4, 4, 1, 4, 3, 2, 1, 0, 4, 4, 4, 4, 4, 4, 1, 4, 4, 2, 1, 4, 0, 4, 1, 4, 4, 4, 4, 4, 4, 4, 1, 4, 3, 2, 1, 0, 4, 4, 1, 4, 3, 4, 1, 4, 3, 4, 1, 4, 4, 4, 1, 4, 0, 4, 1, 4, 4, 4, 1, 4, 4, 4, 1, 4, 4, 2, 4, 4, 3, 2, 1, 0, 4, 4, 1, 4, 4 ]
[ "nonn" ]
A193711
[ 1, 4, 8, 14, 23, 33, 48, 64, 85, 110, 138, 174, 219, 268, 323, 387, 453, 531, 612, 703, 803, 908, 1028, 1149, 1285, 1429, 1582, 1751, 1922, 2112, 2308, 2518, 2743, 2974, 3227, 3483, 3759, 4048, 4348, 4672, 4997, 5348, 5709, 6087, 6487, 6893, 7328, 7769, 8234 ]
[ "nonn" ]
A317099
[ 1, 3, 4, 9, 8, 19, 16, 35, 35, 54, 57, 113, 102, 155, 189, 279, 298, 447, 491, 702, 813, 1063, 1256, 1759, 1967, 2542, 3050, 3902, 4566, 5882, 6843, 8676, 10205, 12612, 14908, 18608, 21638, 26510, 31292, 38150, 44584, 54185, 63262, 76308, 89371, 106818, 124755 ]
[ "nonn" ]
A199722
[ 1, 1, 7, 3, 1, 4, 8, 3, 8, 0, 8, 5, 5, 4, 0, 4, 0, 7, 9, 5, 3, 5, 9, 8, 3, 2, 2, 6, 8, 7, 2, 9, 2, 2, 6, 3, 8, 8, 3, 5, 8, 6, 5, 0, 3, 2, 0, 0, 9, 5, 2, 8, 9, 8, 4, 1, 2, 5, 8, 8, 4, 1, 1, 2, 4, 3, 1, 2, 6, 8, 6, 4, 8, 6, 0, 3, 4, 7, 1, 1, 7, 9, 6, 5, 8, 1, 0, 0, 6, 8, 7, 5, 2, 5, 3, 9, 6, 8, 5 ]
[ "nonn", "cons" ]
A064804
[ 16, 22, 28, 34, 38, 40, 46, 52, 58, 64, 68, 76, 82, 86, 88, 94, 98, 100, 106, 112, 118, 124, 128, 130, 134, 136, 142, 148, 152, 154, 158, 160, 166, 172, 178, 184, 188, 190, 194, 196, 202, 206, 208, 214, 218, 220, 226, 232, 236, 238, 244, 248, 250, 256, 262, 268 ]
[ "easy", "nonn" ]
A194176
[ 0, 0, 1, 3, 5, 8, 12, 16, 21, 26, 31, 37, 43, 49, 56, 63, 71, 80, 89, 99, 110, 121, 133, 145, 157, 170, 184, 198, 212, 227, 242, 257, 273, 290, 307, 325, 343, 362, 381, 401, 421, 442, 463, 485, 507, 530, 553, 577, 602, 627, 653, 679, 706, 733, 761, 789 ]
[ "nonn" ]
A007621
[ 70, 102, 114, 138, 174, 186, 222, 246, 258, 282, 318, 350, 354, 366, 372, 402, 426, 438, 444, 474, 490, 492, 498, 516, 534, 550, 564, 572, 582, 606, 618, 636, 642, 650, 654, 678, 708, 732, 738, 748, 762, 770, 774, 786, 804, 822, 834, 836, 846, 852, 876, 894 ]
[ "nonn" ]
A074350
[ 321, 1384, 1395, 2632, 3751, 4980, 5790, 6106, 6331, 6347, 6397, 6432, 6457, 6581, 6714, 6780, 6931, 7119, 7192, 7341, 7345, 7384, 7795, 7908, 8305, 8351, 8355, 9154, 9551, 10126, 10136, 10169, 10217, 10391, 10396, 10703, 12337, 12434, 12933, 13054, 13074 ]
[ "base", "nonn" ]
A300828
[ 1, 0, 0, 1, 0, 0, 0, -2, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, -2, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -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, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, -2 ]
[ "sign", "easy", "mult" ]
A196524
[ 1, 3, 6, 10, 12, 18, 18, 28, 30, 36, 30, 60, 36, 54, 72, 72, 48, 90, 54, 120, 108, 90, 66, 168, 100, 108, 126, 180, 84, 216, 90, 176, 180, 144, 216, 300, 108, 162, 216, 336, 120, 324, 126, 300, 360, 198, 138, 432, 210, 300, 288, 360, 156, 378, 360, 504, 324, 252, 174, 720, 180, 270, 540, 416, 432, 540 ]
[ "mult", "nonn", "easy" ]
A317349
[ 1, 1, 2, 7, 42, 372, 4269, 59047, 946557, 17175289, 347208299, 7730688884, 187911183701, 4951155672353, 140575561645293, 4279249948000903, 139050095246322900, 4804391579357017000, 175902340755219300000, 6.803436418471129e+21, 2.7720277438138665e+23, 1.1868116969794806e+25 ]
[ "nonn" ]