id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A122534
[ 1, 2, 3, 4, 9, 23, 25, 1456, 1616, 3865 ]
[ "hard", "more", "nonn" ]
A274765
[ 0, 606, 608, 609, 806, 808, 809, 906, 908, 909, 66066, 66068, 66069, 66086, 66088, 66089, 66096, 66098, 66099, 68066, 68068, 68069, 68086, 68088, 68089, 68096, 68098, 68099, 69066, 69068, 69069, 69086, 69088, 69089, 69096, 69098, 69099, 86066, 86068, 86069, 86086, 86088, 86089, 86096, 86098, 86099 ]
[ "nonn", "base", "easy" ]
A307702
[ 1, 4, 11, 41, 161, 641, 2561, 10241, 40961, 163841, 655361, 2621441, 10485761, 41943041, 167772161, 671088641, 2684354561, 10737418241, 42949672961, 171798691841, 687194767361, 2748779069441, 10995116277761, 43980465111041, 175921860444161, 703687441776641 ]
[ "nonn", "easy" ]
A199453
[ 5, 4, 1, 0, 7, 0, 8, 3, 0, 7, 2, 2, 7, 3, 2, 2, 4, 3, 2, 7, 3, 6, 4, 5, 7, 3, 9, 1, 0, 9, 5, 1, 7, 7, 2, 9, 9, 2, 7, 9, 0, 2, 7, 8, 5, 3, 7, 8, 9, 3, 0, 7, 7, 8, 6, 2, 0, 3, 7, 6, 2, 3, 2, 0, 6, 0, 7, 7, 0, 4, 4, 8, 6, 7, 9, 0, 1, 2, 5, 4, 9, 1, 3, 9, 6, 1, 9, 8, 4, 5, 5, 8, 5, 1, 3, 6, 9, 2, 1 ]
[ "nonn", "cons" ]
A158160
[ 1, 4, 9, 25, 49, 121, 225, 484, 900, 1764, 3136, 5929, 10201, 18222, 30958, 53287, 87960, 147491, 238145, 388309, 616169, 979795, 1524774, 2380074, 3639685, 5569074, 8392071, 12625030, 18735698, 27770223, 40646465, 59378143, 85845809 ]
[ "nonn" ]
A271993
[ 5, 14, 33, 52, 85, 118 ]
[ "fini", "nonn", "full" ]
A337359
[ 11, 17, 23, 31, 37, 43, 61, 67, 73, 97, 103, 109, 127, 139, 151, 163, 181, 229, 277, 313, 337, 367, 433, 457, 523, 541, 547, 601, 613, 619, 631, 643, 661, 709, 727, 739, 751, 757, 769, 823, 829, 883, 919, 1009, 1033, 1039, 1051, 1093, 1117, 1129, 1201, 1213, 1237, 1279 ]
[ "nonn" ]
A058163
[ 1, 1, 1, 4, 6, 80, 120, 2760, 7560, 108864, 362880, 21621600, 39916800, 1186099200, 10897286400, 647091244800, 1307674368000, 103742166528000, 355687428096000, 32438693442355200, 260668072304640000, 5573557327822848000, 51090942171709440000 ]
[ "nonn" ]
A126976
[ 6, 32, 3, 34, 35, 1, 7, 11, 27, 28, 8, 30, 19, 14, 16, 15, 23, 24, 18, 20, 22, 21, 17, 13, 25, 29, 10, 9, 26, 12, 36, 5, 33, 4, 2, 31 ]
[ "fini", "full", "nonn", "tabf" ]
A354250
[ 1, 6, 714, 360732, 476832204, 1302897016944, 6382799223892560, 50956720815425430000, 6.190199143569607e+23, 1.0866561174598538e+28, 2.647633999946271e+32, 8.668743073576807e+36 ]
[ "nonn" ]
A321379
[ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 1, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0, 3, 0, 0, 0, 0, 0, 0, 0, 2, 1, 0, 0, 1, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0, 0, 4 ]
[ "nonn" ]
A174376
[ 1, 1, 1, 1, 4, 1, 1, 6, 6, 1, 1, 8, 48, 8, 1, 1, 10, 80, 80, 10, 1, 1, 12, 120, 960, 120, 12, 1, 1, 14, 168, 1680, 1680, 168, 14, 1, 1, 16, 224, 2688, 26880, 2688, 224, 16, 1, 1, 18, 288, 4032, 48384, 48384, 4032, 288, 18, 1, 1, 20, 360, 5760, 80640, 967680, 80640, 5760, 360, 20, 1 ]
[ "nonn", "tabl", "easy" ]
A281629
[ 1, 0, 110, 1, 11000, 11111, 1001000, 10111, 111110000, 10001111, 11101000000, 1111111111, 1100101000000, 11110111111, 111010110000000, 11110101111111, 11001011100000000, 111010011111111, 1110101110000000000, 111101011111111100, 110010111010000000000 ]
[ "nonn", "easy" ]
A254582
[ 72939, 545360, 5909527, 58920922, 548753241, 5184793937, 49094787979, 464109388554, 4388623973352, 41497627764959, 392355045769673, 3709832984584812, 35077649385100544, 331666144126635700 ]
[ "nonn" ]
A223737
[ 22, 484, 5600, 42090, 237088, 1082738, 4207089, 14362171, 44066468, 123591226, 321014080, 780210492, 1789329904, 3899021174, 8119048135, 16234703963, 31301451138, 58398476624, 105750499888, 186363500950, 320365509352 ]
[ "nonn" ]
A083240
[ 37, 47, 163, 167, 647, 881, 1151, 1627, 3271, 5179, 5659, 11597, 13799, 18503, 31259, 43331, 44201, 76441, 163883, 277231, 391067, 402487, 630493, 643703, 809407, 985679, 1170311, 1326989, 1365799, 2113973, 2260631, 2273101, 2392939, 2662133, 2750431 ]
[ "nonn" ]
A155658
[ 1, 17, 169, 1673, 17041, 177857, 1889209, 20310713, 220123681, 2398301297, 26219899849, 287288997353, 3152269663921, 34619601154337, 380428056656089, 4181995730925593, 45982962794141760, 505679659013280960 ]
[ "nonn", "easy" ]
A345283
[ 0, 4, 9, 8, 25, 59, 49, 32, 243, 253, 121, 371, 169, 2391, 5312, 2048, 289, 4235, 361, 5173, 193954, 9523, 529, 185339, 78125, 133269, 177147, 147879, 841, 386344, 961, 131072, 1755374, 529201, 49651668, 2118611, 1369, 8395467, 129511456, 57216733, 1681, 138352314, 1849 ]
[ "nonn" ]
A196682
[ 9, 189, 1235, 15395, 188078, 2169685, 25142624, 291420839, 3417608122, 40048090008, 466852430720, 5449232674091, 63760228123954, 745737298355388, 8713522565183852, 101832009256003150, 1190660595164564000 ]
[ "nonn" ]
A175646
[ 1, 0, 3, 4, 0, 1, 4, 8, 7, 5, 4, 1, 4, 3, 4, 1, 8, 8, 0, 5, 3, 9, 0, 3, 0, 6, 4, 4, 4, 1, 3, 0, 4, 7, 6, 2, 8, 5, 7, 8, 9, 6, 5, 4, 2, 8, 4, 8, 9, 0, 9, 9, 8, 8, 6, 4, 1, 6, 8, 2, 5, 0, 3, 8, 4, 2, 1, 2, 2, 2, 2, 4, 5, 8, 7, 1, 0, 9, 6, 3, 5, 8, 0, 4, 9, 6, 2, 1, 7, 0, 7, 9, 8, 2, 6, 2, 0, 5, 9, 6, 2, 8, 9, 9, 7 ]
[ "cons", "nonn" ]
A107010
[ 5, 11, 23, 47, 53, 59, 71, 89, 113, 137, 179, 191, 251, 257, 269, 311, 317, 353, 383, 389, 401, 419, 443, 449, 467, 509, 521, 587, 599, 617, 641, 647, 653, 683, 719, 773, 797, 839, 863, 881, 911, 929, 947, 971, 977, 983, 1013, 1049, 1061, 1103, 1109 ]
[ "nonn", "easy" ]
A274796
[ 1, 2, 4, 5, 8, 16, 20, 32, 64, 80, 128, 186, 256, 320, 512, 704, 1024, 1280, 1344, 2048, 3808, 4096, 5090, 5120, 6464, 8192, 10152, 15904, 16384, 20480, 21760, 28672, 32768, 34640, 59392, 62132, 65536, 81920, 106496, 131072, 138880, 217824, 262144, 327680 ]
[ "nonn" ]
A290815
[ 1, 39, 78, 155, 310, 465, 546, 793, 798, 930, 1092, 1586, 1638, 1860, 2170, 2379, 2394, 3172, 3276, 3965, 4340, 4758, 4914, 5219, 6045, 6510, 7137, 7182, 7930, 9516, 9828, 10374, 10438, 11102, 11895, 12090, 13020, 14274, 15657, 15860, 16843, 16891, 18135 ]
[ "nonn" ]
A192553
[ 1, 2, 5, 15, 51, 197, 850, 3897, 19461, 104264 ]
[ "nonn" ]
A315725
[ 1, 6, 12, 18, 22, 26, 30, 34, 38, 44, 50, 56, 62, 68, 74, 78, 82, 86, 90, 94, 100, 106, 112, 118, 124, 130, 134, 138, 142, 146, 150, 156, 162, 168, 174, 180, 186, 190, 194, 198, 202, 206, 212, 218, 224, 230, 236, 242, 246, 250 ]
[ "nonn" ]
A170497
[ 1, 8, 56, 392, 2744, 19208, 134456, 941192, 6588344, 46118408, 322828856, 2259801992, 15818613944, 110730297608, 775112083256, 5425784582792, 37980492079544, 265863444556808, 1861044111897656, 13027308783283592 ]
[ "nonn" ]
A135388
[ 2, 264, 129976320, 911520057021235200, 2.5732699923809296e+32, 6.705710151431659e+51, 3.2132958735643555e+76 ]
[ "nonn", "walk" ]
A213969
[ 1, 2, 12, 21, 112, 121, 122, 211, 212, 221, 1112, 1121, 1122, 1211, 1221, 1222, 2111, 2112, 2122, 2211, 2212, 2221, 11112, 11121, 11122, 11211, 11212, 11221, 11222, 12111, 12112, 12121, 12122, 12211, 12212, 12221, 12222, 21111, 21112, 21121, 21122, 21211, 21212, 21221, 21222, 22111, 22112, 22121, 22122, 22211, 22212, 22221 ]
[ "nonn", "base" ]
A241191
[ 1, 3, 1, 93, 145, 213, 289, 365, 260511, 9645025, 395623447, 17017308303, 800016993275, 902324346127, 2502504187659113, 152669617912106180, 10229758110750829000, 726365554791052000000, 5.302790196433912e+22, 5.738931175767777e+22 ]
[ "nonn", "frac" ]
A387110
[ 1, 1, 2, 0, 3, 2, 5, 0, 2, 3, 7, 0, 11, 5, 6, 0, 15, 2, 22, 0, 10, 7, 30, 0, 6, 11, 0, 0, 42, 6, 56, 0, 14, 15, 15, 0, 77, 22, 22, 0, 101, 10, 135, 0, 6, 30, 176, 0, 20, 6, 30, 0, 231, 0, 21, 0, 44, 42, 297, 0, 385, 56, 10, 0, 33, 14, 490, 0, 60, 15, 627, 0 ]
[ "nonn", "mult", "changed" ]
A108096
[ 1, 12, -60, 768, -11004, 178200, -3093504, 56265216, -1058194428, 20410970124, -401553531000, 8026398749952, -162541338390528, 3327702330562584, -68761528402925570, 1432192515405350400, -30037109244686774000, 633790586271852400000, -1.3444940755220757e+22, 2.8657764648221138e+23 ]
[ "sign" ]
A056188
[ 1, 2, 6, 8, 30, 12, 126, 128, 342, 260, 2046, 1608, 8190, 4760, 15840, 32768, 131070, 80820, 524286, 493280, 1165542, 1391720, 8388606, 5769552, 26910650, 23153832, 89478486, 131849648, 536870910, 352845960, 2147483646, 2147483648 ]
[ "nonn" ]
A013942
[ 2, 1, 4, 2, 1, 1, 6, 3, 2, 1, 1, 1, 8, 4, 2, 2, 1, 1, 1, 1, 10, 5, 3, 2, 2, 1, 1, 1, 1, 1, 12, 6, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 14, 7, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 16, 8, 5, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 18, 9, 6, 4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 20, 10, 6, 5, 4, 3 ]
[ "nonn", "tabf", "easy", "nice" ]
A225945
[ 1, 6, 60, 136, 124796, 3919272, 18363918, 153037808, 965108649, 3140421892, 5961162423, 20437804784 ]
[ "nonn", "more" ]
A196250
[ 4, 32, 15, 14, 36, 28, 18, 420, 13, 342, 96, 351, 32, 174, 372, 204, 114, 69, 60, 182, 672, 51, 63, 231, 42, 96, 235, 96, 510, 128, 540, 290, 768, 483, 192, 96, 128, 546, 301, 252, 64, 93, 195, 819, 320, 78, 882, 105, 477, 234, 143, 155, 703, 608, 192 ]
[ "nonn" ]
A188918
[ 1, 5, 85, 1595, 33055, 723701, 16429435, 382643525, 9082868245, 218790563255, 5332206228085, 131194789234955, 3253536973286245, 81224561099580160, 2039348104811147800, 51455631680563490000, 1.3038898327254516e+21 ]
[ "nonn", "easy" ]
A381341
[ 1, 1, 1, 7, 25, 81, 601, 3207, 18705, 156385, 1087441, 8962823, 84001897, 732712241, 7487525865, 78537490951, 831722893217, 9804469109953, 115549730623009, 1431784628480007, 18795444460125240, 248964703826005800, 3487888859183694300, 50283005924345954000 ]
[ "nonn" ]
A249007
[ 802, 16800, 299044, 2888944, 20952218, 99817384, 418454994, 1385871140, 4201910020, 11319995234, 28417289280, 65009432892, 142222105640, 290405064290, 573014867750, 1075969706928, 1959720585922, 3431451616020 ]
[ "nonn" ]
A153169
[ 19, 43, 75, 115, 163, 219, 283, 355, 435, 523, 619, 723, 835, 955, 1083, 1219, 1363, 1515, 1675, 1843, 2019, 2203, 2395, 2595, 2803, 3019, 3243, 3475, 3715, 3963, 4219, 4483, 4755, 5035, 5323, 5619, 5923, 6235, 6555, 6883, 7219, 7563, 7915, 8275, 8643, 9019, 9403 ]
[ "nonn", "easy" ]
A204608
[ 16, 181, 4901, 313597, 45645661, 15468240213, 11909737623605, 21224284541503780, 86355017921168790000, 8.091816195519786e+23, 1.7365790350293711e+28, 8.563569380358901e+32 ]
[ "nonn" ]
A031087
[ 0, 1, 2, 3, 4, 5, 6, 7, 8, 0, 1, 1, 1, 2, 1, 3, 1, 4, 1, 5, 1, 6, 1, 7, 1, 8, 1, 0, 2, 1, 2, 2, 2, 3, 2, 4, 2, 5, 2, 6, 2, 7, 2, 8, 2, 0, 3, 1, 3, 2, 3, 3, 3, 4, 3, 5, 3, 6, 3, 7, 3, 8, 3, 0, 4, 1, 4, 2, 4, 3, 4, 4, 4, 5, 4, 6, 4, 7, 4, 8, 4, 0, 5, 1, 5, 2, 5, 3, 5, 4, 5 ]
[ "nonn", "base", "tabf", "less" ]
A204395
[ 61336, 1131008, 19698336, 313801352, 5406738528, 91301191200, 1536831498888, 26029238052168, 439829118347696, 7431287377932800, 125613328165459800, 2122853433439980500, 35877461084178660000, 606366376120718200000 ]
[ "nonn" ]
A077149
[ 3, 7, 13, 13, 31, 16, 57, 25, 37, 27, 133, 31, 183, 39, 49, 49, 307, 46, 381, 55, 71, 63, 553, 61, 151, 75, 109, 78, 871, 71, 993, 97, 118, 99, 148, 91, 1407, 111, 142, 107, 1723, 101, 1893, 125, 142, 135, 2257, 121, 393, 135, 188, 149, 2863, 136, 256, 155 ]
[ "nonn" ]
A231956
[ 12512, 3295580, 732691918, 171279257338, 40322931224352, 9478886429386626, 2227569337736429300, 523508634894235100000, 1.2303312691618873e+23, 2.891477160334952e+25, 6.795434605065558e+27 ]
[ "nonn" ]
A312683
[ 1, 4, 8, 14, 20, 26, 32, 38, 42, 46, 50, 54, 60, 66, 72, 78, 84, 88, 92, 96, 100, 106, 112, 118, 124, 130, 134, 138, 142, 146, 152, 158, 164, 170, 176, 180, 184, 188, 192, 198, 204, 210, 216, 222, 226, 230, 234, 238, 244, 250 ]
[ "nonn" ]
A333075
[ 80, 1488, 9312, 31552, 83432, 174816, 339816, 584176, 953416, 1463936, 2173976, 3074784, 4294080, 5790816, 7664880, 9952944, 12757088, 16036096, 20013696, 24577760, 29973528, 36161472, 43314312, 51334672 ]
[ "nonn", "more" ]
A094462
[ 53, 53, 19, 53, 10627, 7, 3571, 271, 84319, 7, 47059, 7, 47, 53, 23971, 11, 13, 5, 7, 201499, 5, 7, 67, 13, 7, 21211, 5, 29, 10696171, 11, 149, 971, 16896211, 11, 58111, 17, 11, 75307, 25105111, 853, 139, 7, 5, 613, 181, 23, 13, 29, 13, 19, 53, 47, 5, 11, 84811 ]
[ "nonn" ]
A292696
[ -1, 6, 4, 21, 44, 126, 319, 846, 2204, 5781, 15124, 39606, 103679, 271446, 710644, 1860501, 4870844, 12752046, 33385279, 87403806, 228826124, 599074581, 1568397604, 4106118246, 10749957119, 28143753126, 73681302244, 192900153621, 505019158604, 1322157322206, 3461452807999 ]
[ "sign", "easy" ]
A046930
[ 1, 1, 2, 4, 4, 4, 4, 4, 8, 6, 6, 8, 4, 4, 8, 10, 6, 6, 8, 4, 6, 8, 8, 12, 10, 4, 4, 4, 4, 16, 16, 8, 6, 10, 10, 6, 10, 8, 8, 10, 6, 10, 10, 4, 4, 12, 22, 14, 4, 4, 8, 6, 10, 14, 10, 10, 6, 6, 8, 4, 10, 22, 16, 4, 4, 16, 18, 14, 10, 4, 8, 12, 12, 10, 8, 8, 12, 10, 10, 16, 10, 10, 10, 6, 8, 8 ]
[ "nonn", "easy", "nice" ]
A181125
[ 0, 63, 665, 728, 3367, 4032, 4095, 11529, 14896, 15561, 15624, 31031, 42560, 45927, 46592, 46655, 70993, 102024, 113553, 116920, 117585, 117648, 144495, 215488, 246519, 258048, 261415, 262080, 262143, 269297, 413792, 468559, 484785, 515816 ]
[ "nonn" ]
A314617
[ 1, 5, 9, 12, 15, 21, 28, 31, 33, 36, 39, 47, 56, 57, 57, 60, 63, 73, 84, 83, 81, 84, 87, 99, 112, 109, 105, 108, 111, 125, 140, 135, 129, 132, 135, 151, 168, 161, 153, 156, 159, 177, 196, 187, 177, 180, 183, 203, 224, 213 ]
[ "nonn" ]
A376023
[ 1, 0, 3, 10, 17, 19, 19, 18, 15, 9, 6, 65, 74, 78, 80, 80, 79, 76, 71, 63, 49, 9, 62, 77, 85, 90, 93, 94, 93, 90, 85, 78, 68, 52, 21, 204, 247, 266, 277, 284, 288, 290, 290, 289, 286, 281, 274, 264, 250, 229, 192, 62, 150, 182, 201, 214, 223, 229, 233, 235, 235, 234, 231 ]
[ "nonn", "look" ]
A094342
[ 2, 3, 5, 7, 11, 17, 19, 29, 41, 71, 181, 239, 379, 449, 701, 881, 1429, 1871, 2729, 3079, 4159, 10529, 11969, 23561, 40699, 51679, 90271, 104651, 146719, 226799, 244529, 252449, 388961, 403649, 825551, 906751, 1276001, 2408561, 2648449, 3807649, 4058209, 4406401 ]
[ "easy", "nonn" ]
A200996
[ 3, 2, 2, 1, 4, 1, 4, 2, 2, 2, 4, 1, 8, 2, 2, 2, 6, 1, 10, 2, 2, 2, 6, 3, 6, 4, 4, 3, 6, 1, 10, 3, 4, 3, 4, 2, 4, 5, 6, 2, 4, 1, 6, 2, 4, 3, 6, 2, 4, 3, 2, 2, 4, 2, 6, 3, 4, 3, 12, 1, 8, 5, 4, 3, 6, 2, 6, 2, 2, 2, 8, 1, 14, 2, 2, 3, 6, 3, 4, 3, 8, 2, 4, 4, 12 ]
[ "nonn" ]
A025128
[ 0, 0, 1, 0, 1, 2, 2, 2, 3, 2, 3, 4, 4, 4, 5, 5, 6, 7, 7, 6, 7, 8, 8, 8, 9, 9, 10, 11, 11, 11, 12, 12, 13, 13, 13, 13, 15, 15, 15, 15, 16, 16, 18, 17, 18, 18, 19, 19, 20, 20, 21, 21, 23, 22, 23, 22, 23, 24, 24, 24, 25, 25, 26, 27, 27, 27, 28, 29, 29, 29, 30, 30, 31, 32, 32, 32, 33, 33, 34, 34, 35, 35, 36 ]
[ "nonn" ]
A359449
[ 223, 232, 322, 1349, 1394, 1439, 1493, 1934, 1943, 2023, 2032, 2203, 2230, 2302, 2320, 3022, 3149, 3194, 3202, 3220, 3419, 3491, 3914, 3941, 4139, 4193, 4319, 4391, 4913, 4931, 9134, 9143, 9314, 9341, 9413, 9431, 10349, 10394, 10439, 10493, 10934, 10943, 13049, 13094, 13409, 13490, 13904, 13940 ]
[ "nonn", "base", "easy" ]
A070764
[ 0, 0, 0, 0, 0, 0, 0, 0, 1, 4, 25, 108, 450, 1713, 6267, 21988, 75185, 251590, 828408, 2692630, 8661287, 27624040, 87479663, 275392248, 862593661, 2690285608, 8359581585, 25893044920, 79978118632, 246433568617, 757696112134, 2325224420164, 7123627399429, 21791318924996, 66570286462599, 203119558522513, 619084154962394, 1885038245845679, 5734606563668062, 17431545733501176 ]
[ "hard", "nonn" ]
A361552
[ 1, 2, 14, 84, 530, 3770, 29446, 240302, 2003914, 17024332, 147306448, 1294859540, 11524690228, 103605031978, 939357512086, 8580744729478, 78898896072996, 729661925134886, 6782435427053490, 63332055630823770, 593793935288453200, 5587934788557994000 ]
[ "nonn" ]
A329215
[ 4, 1, 5, 3, 0, 4, 6, 9, 7, 5, 7, 9, 9, 4, 5, 1, 3, 8, 5, 2, 2, 4, 4, 1, 7, 8, 8, 9, 3, 3, 7, 1, 5, 1, 2, 5, 4, 4, 3, 3, 3, 0, 0, 5, 3, 4, 6, 9, 0, 4, 6, 8, 3, 8, 0, 4, 6, 5, 3, 5, 0, 6, 2, 6, 2, 0, 0, 4, 6, 0, 5, 4, 6, 0, 5, 0, 3, 0, 9, 4, 9, 3, 3, 9, 8, 8, 7, 3, 2, 0, 0 ]
[ "nonn", "easy", "cons" ]
A226670
[ 2, 27, 31, 43, 65, 66, 100, 106, 118, 136, 140, 141, 162, 200, 222, 262, 426, 476, 526, 636, 737, 1922, 2254, 4531, 4686, 5194, 5945, 9946, 10702, 14219, 16340, 19904, 37582, 40983, 49711, 63330 ]
[ "nonn" ]
A146311
[ 1, -5, 49, -485, 4801, -47525, 470449, -4656965, 46099201, -456335045, 4517251249, -44716177445, 442644523201, -4381729054565, 43374646022449, -429364731169925, 4250272665676801, -42073361925598090, 416483346590304060 ]
[ "sign", "easy" ]
A266101
[ 1, 3, 1, 4, 5, 1, 5, 13, 16, 1, 9, 36, 64, 39, 1, 16, 100, 161, 230, 105, 1, 25, 233, 736, 929, 1012, 272, 1, 39, 680, 3846, 6307, 4893, 3928, 715, 1, 64, 2201, 16103, 52171, 53442, 26948, 16428, 1869, 1, 105, 6508, 62778, 371130, 841668, 457738, 145274, 65736 ]
[ "nonn", "tabl" ]
A304495
[ 0, 1, 1, 2, 1, 1, 1, 2, 3, 1, 1, 1, 1, 1, 1, 4, 1, 1, 1, 1, 1, 1, 1, 1, 5, 1, 3, 1, 1, 1, 1, 2, 1, 1, 1, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 10, 1, 1, 1, 1, 1 ]
[ "nonn" ]
A046835
[ 3628, 3792, 8882, 14651, 28792, 36574, 37026, 37028, 37073, 58808, 68323, 71213, 75884, 75887, 75888, 87073, 88526, 88796, 88808, 94682, 105125, 105153, 146308, 161574, 269622, 368323, 369255, 369482, 369863, 370137, 370156, 370162, 370178 ]
[ "nonn", "base" ]
A275770
[ 17, 47, 59, 71, 101, 107, 137, 149, 167, 197, 227, 257, 263, 269, 311, 317, 347, 353, 383, 389, 401, 449, 461, 467, 479, 503, 521, 557, 563, 569, 587, 599, 617, 647, 677, 701, 773, 797, 821, 827, 839, 857, 863, 881, 887, 929, 941, 947, 971, 977, 983, 1061, 1091, 1097 ]
[ "nonn" ]
A183382
[ 1, 5, 11, 29, 89, 245, 669, 1891, 5297, 14753, 41267, 115455, 322661, 902047, 2522301, 7051895, 19715891, 55124449, 154123101, 430912643, 1204794989, 3368504981, 9418046333, 26332052309, 73622187095, 205841375745, 575515014243 ]
[ "nonn" ]
A026834
[ 1, 1, 2, 2, 3, 2, 3, 3, 3, 3, 4, 3, 4, 4, 4, 4, 5, 4, 5, 5, 5, 5, 6, 5, 6, 6, 6, 6, 7, 6, 7, 7, 7, 7, 8, 7, 8, 8, 8, 8, 9, 8, 9, 9, 9, 9, 10, 9, 10, 10, 10, 10, 11, 10, 11, 11, 11, 11, 12, 11, 12, 12, 12, 12, 13, 12, 13, 13, 13, 13, 14, 13, 14, 14, 14, 14, 15, 14, 15, 15, 15, 15, 16 ]
[ "nonn" ]
A174191
[ 1, 2, 3, 6, 13, 30, 71, 170, 409, 986, 2379, 5742, 13861, 33462, 80783, 195026, 470833, 1136690, 2744211, 6625110, 15994429, 38613966, 93222359, 225058682, 543339721, 1311738122, 3166815963, 7645370046, 18457556053, 44560482150, 107578520351 ]
[ "nonn" ]
A009808
[ 1, 2, 8, -400, -54016, -6545408, -886739968, -130488590336, -17561155108864, -157860190420992, 1926815267611213800, 1.6597295868640452e+21, 1.2014879328704107e+24, 8.582515957346087e+26 ]
[ "sign" ]
A308842
[ 0, 0, 0, 0, 0, 1, 1, 2, 2, 5, 7, 9, 10, 16, 18, 25, 25, 35, 40, 51, 54, 74, 83, 105, 112, 145, 156, 191, 198, 246, 267, 317, 331, 402, 430, 502, 520, 613, 652, 758, 791, 925, 979, 1118, 1152, 1337, 1406, 1603, 1667, 1905, 2009, 2266, 2343, 2652, 2787, 3134 ]
[ "nonn" ]
A002999
[ 1, 2, 6, 18, 56, 170, 492, 1358, 3600, 9234, 23060, 56342, 135192, 319514, 745500, 1720350, 3932192, 8912930, 20054052, 44826662, 99614760, 220201002, 484442156, 1061158958, 2315255856, 5033164850, 10905190452, 23555211318, 50734301240, 108984795194, 233538846780 ]
[ "nonn", "easy" ]
A190792
[ 17, 19, 29, 31, 41, 59, 61, 67, 71, 127, 227, 229, 269, 271, 347, 431, 607, 641, 1009, 1091, 1277, 1279, 1289, 1291, 1427, 1447, 1487, 1597, 1601, 1607, 1609, 1657, 1777, 1861, 1987, 2129, 2131, 2339, 2371, 2377, 2381, 2539, 2677, 2687, 2707, 2789, 2791 ]
[ "nonn", "easy" ]
A355346
[ 2, -4, 2, -1, -4, 0, -3, 7, 0, 2, -8, 5, 0, -4, 0, -23, 14, 0, 23, 0, 0, -70, 41, 0, 21, 0, 0, 2, -222, 127, 0, 90, 0, 0, -4, 0, -726, 409, 0, 297, 0, 0, 47, 0, 0, -2431, 1355, 0, 1001, 0, 0, 45, 0, 0, 0, -8294, 4587, 0, 3431, 0, 0, 284, 0, 0, 0, 2, -28730, 15795, 0, 11927, 0, 0, 1001, 0, 0, 0, -4, 0, -100776, 55146, 0, 41955, 0, 0, 3640, 0, 0, 0, 79, 0, 0, -357238, 194752, 0, 149072, 0, 0, 13260, 0, 0, 0, 77, 0, 0, 0 ]
[ "sign", "tabl" ]
A187663
[ 1, 210, 2310, 223092870, 6469693230, 200560490130, 304250263527210, 614889782588491400, 32589158477190046000, 1.9227603501542128e+21, 1.1728838135940697e+23 ]
[ "nonn", "base", "easy", "fini", "full" ]
A108472
[ 1, 2, 15, 16, 18, 23, 32, 36, 51, 55, 56, 58, 74, 86, 91, 96, 97, 99, 100, 102, 105, 108, 110, 111, 119, 123, 130, 133, 164, 174, 185, 187, 199, 200, 203, 208, 214, 219, 232, 239, 252, 257, 260, 263, 272, 280, 284, 291, 298, 300, 305, 311, 312, 339, 342, 356 ]
[ "nonn" ]
A279483
[ 0, 0, 0, 8, 24, 144, 240, 672, 960, 2000, 2640, 4680, 5880, 9408, 11424, 17024, 20160, 28512, 33120, 45000, 51480, 67760, 76560, 98208, 109824, 137904, 152880, 188552, 207480, 252000, 275520, 330240, 359040, 425408, 460224, 539784, 581400, 675792, 725040, 836000, 893760, 1023120, 1090320, 1240008 ]
[ "nonn", "easy" ]
A390263
[ 1, 0, 0, 1, 3, 0, 1, 4, 4, 2, 4, 5, 4, 4, 3, 4, 0, 7, 1, 9, 6, 3, 0, 0, 6, 3, 5, 5, 5, 1, 7, 0, 5, 8, 3, 0, 0, 3, 3, 2, 2, 3, 6, 7, 0, 7, 1, 6, 7, 7, 1, 2, 0, 1, 9, 3, 7, 2, 3, 1, 2, 4, 8, 5, 7, 2, 4, 6, 7, 7, 7, 0, 2, 2, 7, 2, 4, 9, 9, 9, 2, 2, 9, 6, 1, 5, 8, 8, 5, 6, 8, 6, 6, 6, 9, 2, 5, 9, 9, 1 ]
[ "nonn", "cons" ]
A129557
[ 1, 4, 34, 151, 1291, 5734, 49024, 217741, 1861621, 8268424, 70692574, 313982371, 2684456191, 11923061674, 101938642684, 452762361241, 3870983965801, 17193046665484, 146995452057754, 652883010927151, 5581956194228851, 24792361368566256 ]
[ "nonn", "easy" ]
A030119
[ 1, 1, 4, 8, 16, 29, 51, 87, 146, 242, 398, 651, 1061, 1725, 2800, 4540, 7356, 11913, 19287, 31219, 50526, 81766, 132314, 214103, 346441, 560569, 907036, 1467632, 2374696, 3842357, 6217083, 10059471, 16276586, 26336090, 42612710, 68948835, 111561581 ]
[ "nonn", "easy" ]
A044150
[ 12, 61, 84, 110, 159, 208, 257, 306, 355, 404, 427, 453, 502, 551, 588, 649, 698, 747, 770, 796, 845, 894, 943, 992, 1041, 1090, 1113, 1139, 1188, 1237, 1286, 1335, 1384, 1433, 1456, 1482, 1531, 1580, 1629, 1678, 1727, 1776 ]
[ "nonn", "base" ]
A119968
[ 1, 2, 3, 5, 9, 16, 27, 44, 73, 130, 251, 507, 1025, 2016, 3811, 6907, 12033, 20282, 33475, 55253, 94185, 171896, 342651, 737266, 1655657, 3751786, 8386587, 18274843, 38629505, 79123224, 157157411, 303174298, 569093601, 1041436386 ]
[ "easy", "nonn" ]
A031400
[ 2, 11, 32, 204, 894, 44093, 176392, 1587590, 1587590, 192099588, 192099588 ]
[ "nonn", "more" ]
A077220
[ 1, 2, 4, 6, 9, 12, 3, 7, 8, 13, 15, 21, 24, 31, 5, 10, 11, 17, 19, 26, 29, 16, 20, 25, 30, 36, 42, 49, 56, 22, 14, 41, 37, 18, 27, 28, 38, 40, 51, 54, 66, 39, 52, 53, 67, 69, 84, 87, 33, 45, 46, 32, 23, 43, 35, 70, 50, 55, 65, 71, 34, 44, 47, 58, 62, 74, 79, 57, 48, 72, 64, 89 ]
[ "nonn", "easy" ]
A301339
[ 2, 23, 235, 2357, 12357, 3, 37, 37, 3, 3, 3, 37, 137, 3, 37, 3, 3, 3, 37, 137, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 37, 37, 37, 37, 7, 37, 7, 37, 37, 37, 37, 3, 37, 37, 37, 3, 37, 37, 3, 3, 3, 3, 37, 3, 3, 3, 37, 137, 3, 3, 3, 3, 3, 3, 3, 37, 7, 7, 37, 37, 7 ]
[ "nonn", "base", "changed" ]
A075549
[ 6, 8, 2, 2, 3, 3, 8, 3, 3, 2, 8, 0, 6, 5, 6, 2, 8, 6, 9, 9, 3, 2, 1, 4, 5, 4, 2, 5, 0, 1, 8, 8, 1, 1, 8, 3, 0, 9, 3, 9, 9, 8, 3, 8, 7, 6, 7, 6, 9, 3, 6, 9, 5, 0, 5, 5, 1, 8, 3, 9, 8, 8, 6, 0, 7, 9, 2, 7, 6, 5, 3, 6, 3, 6, 3, 6, 6, 3, 4, 1, 2, 7, 2, 9, 6, 4, 0, 0, 7, 6, 0, 4, 2, 9, 7, 5, 7, 4, 9, 4, 9, 5, 9, 8 ]
[ "nonn", "cons" ]
A081720
[ 1, 1, 3, 1, 4, 10, 1, 6, 21, 55, 1, 8, 39, 136, 377, 1, 13, 92, 430, 1505, 4291, 1, 18, 198, 1300, 5895, 20646, 60028, 1, 30, 498, 4435, 25395, 107331, 365260, 1058058, 1, 46, 1219, 15084, 110085, 563786, 2250311, 7472984, 21552969, 1, 78, 3210, 53764, 493131, 3037314 ]
[ "nonn", "tabl" ]
A058369
[ 0, 1, 9, 10, 18, 19, 45, 46, 55, 90, 99, 100, 145, 180, 189, 190, 198, 199, 289, 351, 361, 369, 379, 388, 450, 451, 459, 460, 468, 495, 496, 550, 558, 559, 568, 585, 595, 639, 729, 739, 775, 838, 855, 900, 954, 955, 990, 999, 1000, 1098, 1099, 1179, 1188, 1189 ]
[ "base", "easy", "nice", "nonn" ]
A191163
[ 1, 2, 5, 11, 14, 17, 38, 41, 50, 53, 65, 92, 119, 122, 146, 149, 158, 161, 194, 197, 209, 257, 335, 362, 365, 443, 446, 470, 473, 482, 485, 578, 581, 590, 593, 626, 629, 641, 770, 773, 785, 821, 833, 1025, 1064, 1091, 1094, 1307, 1334, 1337, 1415, 1418, 1442, 1445, 1454, 1457 ]
[ "nonn" ]
A256762
[ 3, 6, 27, 30, 108, 119, 209, 444, 1050, 15189, 16401, 81363, 134385, 135011 ]
[ "nonn", "more", "hard" ]
A307415
[ 1, 4, 10, 26, 53, 116, 215, 434, 766, 1480, 2539, 4776, 8045, 14864, 24722, 45094, 74305, 134236, 219619, 393790, 640646, 1141844, 1849175, 3279696, 5291353, 9346396, 15031450, 26458994, 42438221, 74479940, 119182319, 208629386, 333170830, 581904544, 927617347, 1616924664 ]
[ "nonn" ]
A065325
[ 1000689, 1009617, 1010589, 1019517, 1020489, 1029417, 1030389, 1039317, 1040289, 1049217, 1050189, 1059117, 1060089, 1060989, 1069017, 1070889, 1080789, 1090689, 1100679, 1109607, 1110579, 1119507, 1120479, 1129407 ]
[ "base", "nonn" ]
A290270
[ 3, 4, 7, 6, 6, 15, 15, 22, 28, 45, 58, 79, 115, 159, 223, 307, 438, 609, 852, 1194, 1675, 2347, 3282, 4606, 6451, 9040, 12663, 17749, 24871, 34845, 48831, 68424, 95883, 134350, 188266, 263811, 369667, 518002, 725860, 1017129, 1425262, 1997179, 2798583 ]
[ "nonn" ]
A156346
[ 1, 2, -4, 4, -2, -1, -1, -2, 4, -4, 2, 1, 1, 2, -4, 4, -2, -1, -1, -2, 4, -4, 2, 1, 1, 2, -4, 4, -2, -1, -1, -2, 4, -4, 2, 1, 1, 2, -4, 4, -2, -1, -1, -2, 4, -4, 2, 1, 1, 2, -4, 4, -2, -1, -1, -2, 4, -4, 2, 1, 1, 2, -4, 4, -2, -1, -1, -2, 4, -4, 2, 1 ]
[ "easy", "sign", "changed" ]
A242561
[ 0, 2, 0, 6, 4, 5, 0, 14, 8, 9, 20, 11, 0, 26, 42, 15, 32, 17, 0, 38, 20, 21, 44, 23, 0, 50, 78, 27, 56, 87, 60, 31, 0, 66, 34, 105, 72, 37, 0, 78, 40, 41, 0, 86, 132, 45, 92, 141, 96, 49, 100, 51, 104, 53, 0, 110, 56, 171, 116, 177 ]
[ "nonn" ]
A099982
[ 2, 5, 13, 19, 61, 107, 521, 1279, 2281, 4253, 9689, 11213, 21701, 44497, 110503, 216091, 859433, 1398269, 3021377, 13466917, 24036583, 30402457, 37156667, 43112609 ]
[ "nonn", "more" ]
A362320
[ 1, 1, 1, 1, 1, -119, -863, -3527, -10751, -27215, 7197121, 96476689, 689534209, 3507486841, 14238448225, -5835497948279, -114117547235327, -1164586980639263, -8296447373407871, -46351121024513380, 25734702161134930000, 661538303263860500000 ]
[ "sign" ]
A084131
[ 1, 5, 33, 245, 1889, 14725, 115137, 901045, 7053121, 55213445, 432231393, 3383685365, 26488919969, 207366548485, 1623353845377, 12708307129525, 99486055923841, 778819338036485, 6096930429659553, 47729375549975290 ]
[ "easy", "nonn" ]
A039176
[ 0, 1, 3, 4, 6, 7, 8, 9, 10, 11, 12, 14, 15, 17, 18, 19, 20, 21, 27, 33, 34, 36, 37, 39, 40, 41, 42, 43, 44, 45, 47, 48, 50, 51, 52, 53, 54, 57, 66, 67, 69, 70, 72, 73, 74, 75, 76, 77, 78, 80, 81, 83, 84, 85, 86, 87, 88, 89, 91, 92, 94, 95, 96, 97, 98, 99, 100, 102, 103 ]
[ "nonn", "base", "easy" ]
A005535
[ 1, 19, 916, 91212, 12888450, 2411213698, 575737451509, 171049953499862, 61944438230597780, 26879022100485976000, 1.3773587720396658e+22, 8.231894671550188e+24, 5.676740663627529e+27, 4.4747484872058935e+30 ]
[ "nonn", "nice" ]
A305889
[ 0, 0, 1, 2, 3, 6, 10, 20, 33, 66, 109, 218, 360, 720, 1189, 2378, 3927, 7854, 12970, 25940, 42837, 85674, 141481, 282962, 467280, 934560, 1543321, 3086642, 5097243, 10194486, 16835050, 33670100, 55602393, 111204786, 183642229, 367284458, 606529080 ]
[ "nonn", "easy" ]