id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A089816
[ 1, 4, 26, 222, 2451, 33288, 538084, 10101010, 216145205, 5195862732, 138679078110, 4070332170534, 130325562613351, 4521260802379792, 168962471790509950, 6767528048726615000, 289242639716420120000 ]
[ "nonn" ]
A035822
[ 1, 148, 10952, 540348, 19998352, 592275428, 14622792792, 309590672908, 5738394543392, 94605503014708, 1404752160252392, 18977706294953308, 235229004437967800, 2694049802004901400, 28681579910712930000 ]
[ "nonn" ]
A335627
[ 1, 1, 4, 20, 152, 1216, 13264, 145760, 2031872, 28617856, 480749824, 8243878400, 162085486592, 3262756228096, 73483961257984, 1695754607421440, 42992308610957310, 1118097332524712000, 31487163119164064000, 910421423509984400000, 2.8187970433553667e+22, 8.962426358551286e+23 ]
[ "nonn" ]
A044032
[ 57, 75, 157, 175, 257, 275, 357, 375, 457, 475, 557, 579, 657, 675, 759, 775, 857, 875, 957, 975, 1057, 1075, 1157, 1175, 1257, 1275, 1357, 1375, 1457, 1475, 1557, 1579, 1657, 1675, 1759, 1775, 1857, 1875, 1957, 1975, 2057 ]
[ "nonn", "base" ]
A166795
[ 0, 5, 14, 68, 652, 16016 ]
[ "nonn" ]
A102840
[ 0, 1, 3, 0, -20, -45, 21, 308, 540, -585, -4235, -5676, 11232, 54145, 51975, -182400, -654160, -380205, 2680425, 7516400, 1320900, -36753255, -82175665, 24032700, 477852900, 850446025, -749925189, -5944471092, -8220606800, 14049061455, 71102953305, 71989187536, -220682377872 ]
[ "sign" ]
A123136
[ 208, 210, 108, 40, 15, 9 ]
[ "nonn" ]
A379467
[ 9, 1, 0, 6, 8, 3, 6, 0, 2, 5, 2, 2, 9, 5, 9, 0, 9, 7, 8, 4, 2, 4, 8, 2, 1, 1, 3, 8, 3, 5, 2, 9, 0, 7, 8, 8, 9, 8, 0, 9, 3, 5, 0, 8, 4, 6, 0, 3, 4, 6, 0, 2, 0, 9, 3, 5, 1, 9, 3, 5, 6, 5, 9, 8, 1, 7, 3, 1, 1, 0, 0, 5, 6, 3, 6, 2, 6, 6, 6, 7, 9, 0, 2, 7, 0, 4, 8, 7, 2, 8, 9, 1, 9, 0, 8, 2, 8, 5, 8, 5 ]
[ "nonn", "cons", "easy" ]
A085233
[ 2, 3, 4, 5, 7, 8, 9, 11, 12, 13, 16, 17, 19, 23, 24, 25, 27, 29, 31, 32, 37, 40, 41, 43, 45, 47, 48, 49, 53, 56, 59, 61, 63, 64, 67, 71, 73, 79, 80, 81, 83, 89, 96, 97, 101, 103, 107, 109, 112, 113, 121, 125, 127, 128, 131, 135, 137, 139, 144, 149, 151, 157, 160 ]
[ "nonn", "easy" ]
A187291
[ 0, 0, 1440, 15424, 57288, 134408, 248208, 397152, 580328, 797160, 1047532, 1331408, 1648788, 1999672, 2384060, 2801952, 3253348, 3738248, 4256652, 4808560, 5393972, 6012888, 6665308, 7351232, 8070660, 8823592, 9610028, 10429968, 11283412 ]
[ "nonn" ]
A382874
[ 1, 42, 1890, 32340, 378378, 3567564, 29201172, 216164520, 1484052570, 9607866268, 59342703420, 352648983960, 2029131058500, 11360419371000, 62125264788840, 332868702695760, 1751865025825530, 9075126224864700, 46353422502086700, 233788539957892930 ]
[ "nonn", "easy" ]
A009043
[ 1, 0, 4, 24, 848, 25792, 1491392, 106879616, 10504954112, 1298259085312, 200164547589120, 37466482286032900, 8382720548500263000, 2.2082416190669953e+21, 6.765998306058562e+23 ]
[ "nonn" ]
A051641
[ 3, 6, 55, 66, 171, 252, 595, 666, 969, 1001, 1771, 2002, 3003, 3003, 3003, 5005, 5995, 8008, 8778, 15051, 66066, 617716, 646646, 828828, 1269621, 1680861, 3262623, 3544453, 5073705, 5676765, 6295926, 6378736, 35133153, 61477416, 178727871 ]
[ "nonn", "base", "nice", "easy" ]
A212338
[ 2, 7, 21, 53, 124, 273, 577, 1181, 2358, 4614, 8880, 16854, 31612, 58691, 108003, 197203, 357596, 644463, 1155059, 2059897, 3656988, 6465660, 11388480, 19990140, 34976870, 61019071, 106160481, 184228193, 318948124, 550962717, 949781269, 1634103701, 2806342578 ]
[ "nonn", "easy" ]
A011756
[ 2, 5, 13, 29, 47, 73, 107, 151, 197, 257, 317, 397, 467, 571, 659, 769, 883, 1019, 1151, 1291, 1453, 1607, 1783, 1987, 2153, 2371, 2593, 2791, 3037, 3307, 3541, 3797, 4073, 4357, 4657, 4973, 5303, 5641, 5939, 6301, 6679, 7019, 7477 ]
[ "nonn" ]
A164096
[ 5, 11, 21, 33, 53, 77, 117, 165, 245, 341, 501, 693, 1013, 1397, 2037, 2805, 4085, 5621, 8181, 11253, 16373, 22517, 32757, 45045, 65525, 90101, 131061, 180213, 262133, 360437, 524277, 720885, 1048565, 1441781, 2097141, 2883573, 4194293, 5767157 ]
[ "nonn" ]
A024874
[ 4, 6, 19, 31, 70, 113, 223, 361, 662, 1071, 1880, 3042, 5194, 8404, 14093, 22803, 37786, 61139, 100509, 162627, 265932, 430287, 701120, 1134436, 1844096, 2983810, 4842711, 7835671, 12703934, 20555397, 33303259, 53885805, 87264322, 141196639, 228589496 ]
[ "nonn" ]
A375690
[ 3, 10301, 101030101, 1210103010121, 12121010301012120, 111212101030101200000, 3.11112121010301e+24, 1.73111121210103e+28, 9.617311112121011e+32, 3.19617311112121e+36, 9.531961731111212e+40, 1.095319617311112e+44, 1.410953196173111e+48, 1.3141095319617312e+52 ]
[ "nonn", "base", "fini", "full" ]
A030690
[ 125, 4096, 9261, 166375, 250047, 3652264, 4913, 64000, 8120601, 1000, 12167, 1442897, 16974593, 19683, 225866529, 25672375, 28934443, 3241792, 3616805375, 40001688, 4410944, 4843965888, 529475129, 5764224257 ]
[ "nonn", "base" ]
A207935
[ 14, 196, 844, 2422, 5594, 11256, 20568, 34986, 56294, 86636, 128548, 184990, 259378, 355616, 478128, 631890, 822462, 1056020, 1339388, 1680070, 2086282, 2566984, 3131912, 3791610, 4557462, 5441724, 6457556, 7619054, 8941282, 10440304 ]
[ "nonn" ]
A244721
[ 2, 28, 210, 1158, 5112, 19206, 63494, 189092, 516528, 1310128, 3119942, 7027866, 15082152, 30994832, 61292380, 117063670, 216690678, 389814504, 683256278, 1169346934, 1957831816, 3212249500, 5172450680, 8185057350, 12743907242, 19544000940, 29551096298 ]
[ "nonn" ]
A270700
[ 12, 42, 78, 114, 150, 186, 222, 258, 294, 330, 366, 402, 438, 474, 510, 546, 582, 618, 654, 690, 726, 762, 798, 834, 870, 906, 942, 978, 1014, 1050, 1086, 1122, 1158, 1194, 1230, 1266, 1302, 1338, 1374, 1410, 1446, 1482, 1518, 1554, 1590, 1626, 1662, 1698, 1734 ]
[ "nonn", "easy" ]
A064854
[ 1, 0, 7, 0, 21, 37, 118, 56, 19, 428, 808, 3920, 2256, 15240, 28312, 46733, 128931, 251439, 434788, 645833, 1397733, 1179155, 7185704, 1551886, 33308648, 65879944, 121274199, 65829274, 228529703, 248939750, 799831532, 2835988891, 1358930753, 9419331043, 9093076436 ]
[ "nonn" ]
A350581
[ 1, 0, 4, 4, 7, 0, 0, 5, 8, 5, 0, 8, 1, 1, 9 ]
[ "nonn", "cons", "more" ]
A285885
[ 1, 2, 6, 16, 38, 138, 182, 209, 309, 341, 612, 1030, 1389, 2513, 2584, 2628, 2650, 2750, 3031, 3207, 3290, 3593, 3742, 3874, 3962, 4121, 4155, 4998, 5384, 5797, 6552, 6723, 6833, 7461, 7979, 8453, 8541, 8844, 8949, 9015, 9164, 9577, 10547, 10569, 11197, 11346 ]
[ "nonn" ]
A109437
[ 0, 1, 3, 12, 44, 165, 615, 2296, 8568, 31977, 119339, 445380, 1662180, 6203341, 23151183, 86401392, 322454384, 1203416145, 4491210195, 16761424636, 62554488348, 233456528757, 871271626679, 3251629977960, 12135248285160, 45289363162681, 169022204365563, 630799454299572 ]
[ "nonn", "easy" ]
A124629
[ 5437, 6221, 7219, 8443, 10903, 11353, 15937, 17123, 18229, 19429, 20353, 20903, 20929, 21803, 21841, 21961, 22123, 22283, 22993, 23053, 23369, 23663, 24733, 25183, 25219, 25463, 26317, 26387, 26449, 27127, 27481, 28181, 28631, 28711 ]
[ "base", "nonn" ]
A018853
[ 0, 1, 4, 14, 8, 15, 5, 29, 3, 31, 10, 33, 6, 19, 11, 35, 2, 65, 37, 21, 12, 68, 69, 22, 7, 4, 72, 23, 13, 74, 132, 42, 134, 24, 43, 77, 138, 44, 14, 25, 8, 45, 144, 81, 46, 26, 147, 83, 47, 84, 15, 151, 85, 27, 86, 273, 154, 49, 276, 88, 157, 28, 5, 159, 283, 9, 286, 51, 91, 289, 29 ]
[ "nonn", "base" ]
A006890
[ 4, 6, 6, 9, 2, 0, 1, 6, 0, 9, 1, 0, 2, 9, 9, 0, 6, 7, 1, 8, 5, 3, 2, 0, 3, 8, 2, 0, 4, 6, 6, 2, 0, 1, 6, 1, 7, 2, 5, 8, 1, 8, 5, 5, 7, 7, 4, 7, 5, 7, 6, 8, 6, 3, 2, 7, 4, 5, 6, 5, 1, 3, 4, 3, 0, 0, 4, 1, 3, 4, 3, 3, 0, 2, 1, 1, 3, 1, 4, 7, 3, 7, 1, 3, 8, 6, 8, 9, 7, 4, 4, 0, 2, 3, 9, 4, 8, 0, 1, 3, 8, 1, 7, 1, 6 ]
[ "cons", "nonn", "nice" ]
A377766
[ 4, 8, 32, 50, 98, 128, 242, 324, 338, 392, 722, 784, 800, 1058, 1250, 1444, 2304, 2312, 2450, 2704, 2738, 3600, 3872, 5408, 5476, 5618, 6272, 6728, 7442, 7688, 8192, 9248, 11552, 12482, 12800, 14400, 14884, 15488, 15842, 16562, 16900, 16928, 17672, 18050, 19208, 21632, 21904, 22500, 23762, 25088 ]
[ "nonn", "easy" ]
A169786
[ 1, 1, 2, 1, 1, 2, 3, 5, 3, 3, 1, 1, 2, 3, 5, 5, 5, 9, 13, 7, 3, 5, 8, 6, 4, 1, 1, 2, 3, 5, 5, 5, 9, 13, 9, 5, 9, 15, 19, 17, 21, 29, 15, 3, 5, 8, 10, 10, 14, 22, 18, 8, 8, 13, 10, 5, 1, 1, 2, 3, 5, 5, 5, 9, 13, 9, 5, 9, 15, 19, 17, 21, 29, 17, 5, 9, 15, 19, 19, 27, 43, 43, 25, 21, 37, 51, 47, 51, 63 ]
[ "nonn", "tabf" ]
A124106
[ 96, 225, 1408, 3400, 9633, 22016, 43681, 53600, 93633, 130625, 152776, 205408, 308481, 446216, 696008, 1493896, 1628033, 3280256, 4617761, 4928008, 5595136, 6720033, 8473921, 11721633, 19995008, 20919361, 22863841, 30752008, 33340000 ]
[ "easy", "nonn" ]
A226411
[ 4, 23, 74, 130, 240, 358, 566, 766, 1112, 1408, 1916, 2362, 3066, 3656, 4564, 5348, 6544, 7522, 9014, 10184, 11966, 13430, 15602, 17366, 19820, 21858, 24814, 27150, 30580, 33202, 37118, 40226, 44656, 48144, 52814, 56696, 62264, 66626, 72796, 77444 ]
[ "nonn" ]
A088465
[ 17, 1777, 1777777777, 17777777777777, 1.777777777777778e+42, 1.7777777777777777e+51 ]
[ "base", "easy", "nonn" ]
A236923
[ 1, 6, 12, 8, 8, 36, 48, 16, 24, 78, 72, 24, 32, 84, 96, 48, 24, 108, 156, 40, 48, 192, 144, 48, 96, 186, 168, 80, 64, 180, 288, 64, 24, 288, 216, 96, 104, 228, 240, 112, 144, 252, 384, 88, 96, 468, 288, 96, 96, 342, 372, 144, 112, 324, 480, 144, 192, 480, 360, 120, 192, 372, 384, 208, 24, 504, 576, 136, 144, 576, 576, 144, 312, 444, 456, 248, 160, 576, 672 ]
[ "nonn" ]
A121267
[ 1, 5, 1, 3, 1, 2, 1, 4, 3057, 2, 3, 14650, 4, 2, 46, 4 ]
[ "nonn", "base", "more", "hard" ]
A226760
[ 1, 2, 12, 120, 1680, 30000, 651840, 16692480, 492307200, 16432899840, 612414190080, 25205181281280, 1135434972672000, 55567263749437440, 2935699697464934400, 166525788640142130000, 1.0094443872515806e+22, 6.512118440465218e+23, 4.454702992909515e+25 ]
[ "nonn" ]
A308803
[ 9, 0, 999, 9009, 99999, 906609, 9999999, 99000099, 999969999, 9966006699, 99999999999, 999000000999, 9999998999999, 99956644665999, 999999999999999, 9999000000010000, 99999999800000000, 999900665566010000, 9999999997999999000, 99999834000043900000, 1e+21, 9.999994020000206e+21, 9.99999999999e+22 ]
[ "nonn", "base" ]
A016567
[ 3, 1, 2, 11, 5, 355, 1, 2, 1, 4, 2, 1, 1, 1, 2, 1, 2, 1, 1, 2, 8, 1, 2, 3, 2, 1, 3, 5, 4, 1, 11, 2, 3, 3, 1, 4, 2, 2, 1, 1, 15, 28, 5, 1, 2, 8, 2, 1, 6, 2, 6, 1, 13, 1, 1, 5, 8, 1, 2, 1, 5, 18, 1, 58, 2, 62, 1, 16, 5, 1, 1, 1, 1, 2, 5, 1, 12 ]
[ "nonn", "cofr" ]
A084848
[ 1, 2, 2, 3, 4, 4, 7, 8, 12, 14, 16, 16, 24, 28, 32, 42, 48, 48, 48, 64, 84, 96, 112, 144, 144, 176, 192, 192, 288, 336, 336, 504, 576, 576, 704, 864, 1008, 1056, 1152, 1232, 1152, 1344, 1728, 1920, 2016, 2016, 2352 ]
[ "nonn" ]
A263640
[ 1, 2, 5, 17, 70, 349, 1389, 4255, 13529, 42700, 141128, 479893, 1639260, 5542549, 18548087, 62017274, 207179998, 694864003, 2330691027, 7821792735, 26241990473, 87992594947, 295032591603, 989183937210, 3317043061446, 11123439095051 ]
[ "nonn" ]
A183381
[ 1, 3, 11, 109, 4194, 304844, 52522415, 24448162531, 27954879962631 ]
[ "nonn" ]
A228727
[ 7, 13, 23, 131, 179, 229, 283, 337, 107, 641, 317, 163, 643, 193, 1949, 523, 257, 2053, 1021, 1933, 2477, 773, 811, 401, 929, 6379, 457, 6197, 5701, 1747, 547, 1949, 1291, 2083, 647, 661, 2341, 709, 1579, 2549, 2633, 1721, 4909, 2851, 857, 877, 5441, 4441 ]
[ "nonn" ]
A018011
[ 1, 3, 6, 12, 28, 63, 144, 330, 755, 1728, 3957, 9058, 20736, 47474, 108688, 248832, 569684, 1304249, 2985984, 6836197, 15650984, 35831808, 82034362, 187811805, 429981696, 984412343, 2253741659, 5159780352, 11812948115, 27044899908, 61917364224 ]
[ "nonn" ]
A164777
[ 1, 9, 72, 576, 4608, 36864, 294912, 2359296, 18874332, 150994368, 1207952676, 9663603264, 77308680960, 618468286464, 4947737001984, 39581821698048, 316653979043052, 2533227076022832, 20265778557681300, 162125924058011070 ]
[ "nonn" ]
A279899
[ 8, 18, 43, 156, 601, 2006, 7383, 25400, 89693, 315334, 1103371, 3871860, 13540353, 47310262, 165104587, 575109252, 2000994373, 6951376238, 24117548401, 83567966688, 289210301055, 999751444526, 3452205326385, 11908457582008 ]
[ "nonn" ]
A118403
[ 1, 1, 3, 5, 9, 15, 23, 33, 45, 59, 75, 93, 113, 135, 159, 185, 213, 243, 275, 309, 345, 383, 423, 465, 509, 555, 603, 653, 705, 759, 815, 873, 933, 995, 1059, 1125, 1193, 1263, 1335, 1409, 1485, 1563, 1643, 1725, 1809, 1895, 1983, 2073, 2165, 2259, 2355 ]
[ "nonn", "easy" ]
A173136
[ 1, 27, 33, 35, 39, 45, 49, 55, 57, 63, 65, 81, 87, 91, 95, 105, 111, 115, 117, 119, 121, 125, 129, 147, 153, 155, 159, 165, 169, 175, 177, 183, 187, 189, 195, 201, 205, 209, 215, 217, 219, 221, 225, 243, 245, 249, 255, 273, 279, 289, 297, 299, 301, 303, 315 ]
[ "nonn", "easy", "less" ]
A305029
[ 1, 2, 2, 2, 2, 0, -2, -2, -2, -2, 0, 2, 2, 2, 2, 0, -2, -2, -2, -2, 0, 2, 2, 2, 2, 0, -2, -2, -2, -2, 0, 2, 2, 2, 2, 0, -2, -2, -2, -2, 0, 2, 2, 2, 2, 0, -2, -2, -2, -2, 0, 2, 2, 2, 2, 0, -2, -2, -2, -2, 0, 2, 2, 2, 2, 0, -2, -2, -2, -2, 0, 2, 2, 2, 2, 0, -2, -2, -2, -2 ]
[ "easy", "sign" ]
A131909
[ 1, 1, 1, 1, 1, 2, 2, 1, 2, 3, 3, 2, 3, 3, 5, 5, 3, 5, 5, 6, 8, 8, 5, 8, 8, 10, 11, 14, 14, 8, 13, 13, 16, 18, 21, 25, 25, 14, 22, 21, 26, 29, 34, 39, 46, 46, 25, 39, 36, 43, 47, 55, 63, 73, 85, 85, 46, 71, 64, 75, 79, 90, 102, 118, 136, 158, 158, 85, 131, 117, 135, 139, 154, 169 ]
[ "nonn", "tabl" ]
A365923
[ 1, 1, 0, 1, 1, 0, 2, 0, 1, 0, 2, 1, 1, 1, 0, 4, 0, 2, 0, 1, 0, 5, 1, 0, 3, 1, 1, 0, 8, 0, 3, 0, 3, 0, 1, 0, 10, 2, 1, 2, 2, 3, 1, 1, 0, 16, 0, 5, 0, 3, 0, 5, 0, 1, 0, 20, 2, 2, 4, 2, 6, 0, 4, 1, 1, 0, 31, 0, 6, 0, 8, 0, 5, 0, 5, 0, 1, 0, 39, 4, 4, 4, 1, 6, 6, 3, 2, 6, 1, 1, 0 ]
[ "nonn", "tabl" ]
A097296
[ 1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 13, 14, 17, 19, 20, 22, 23, 26, 27, 28, 29, 30, 31, 34, 36, 37, 38, 41, 43, 44, 46, 47, 48, 52, 53, 56, 58, 59, 61, 62, 67, 68, 70, 71, 73, 74, 76, 79, 82, 83, 86, 89, 92, 94, 97, 101, 103, 105, 106, 107, 109, 110, 113, 116, 118, 122, 124, 127, 130 ]
[ "nonn" ]
A057832
[ 1, 2, 3, 9, 22, 26, 27, 81, 213, 242, 243, 286, 338, 638, 729, 2187, 2662, 3146, 3718, 4394, 6561, 7282, 10233, 14337, 17253, 19683, 29282, 30699, 34606, 36842, 39754, 40898, 48334, 54626, 57122, 59049, 70906, 77031, 92097, 107822, 154846, 177147 ]
[ "nonn" ]
A096924
[ 102, 110, 118, 126, 134, 150, 180, 202, 216, 225, 234, 260, 272, 312, 338, 366, 404, 414, 420, 455, 456, 512, 534, 542, 564, 576, 586, 635, 645, 712, 734, 750, 786, 808, 818, 827, 837, 840, 894, 920, 939, 970, 980, 1018, 1020, 1034, 1042, 1072, 1074, 1075 ]
[ "nonn", "base" ]
A042172
[ 24, 25, 74, 99, 173, 791, 1755, 2546, 6847, 29934, 36781, 66715, 170211, 236926, 11542659, 11779585, 35101829, 46881414, 81983243, 374814386, 831612015, 1206426401, 3244464817, 14184285669, 17428750486 ]
[ "nonn", "cofr", "frac", "easy", "less" ]
A188024
[ 1, 3, 4, 6, 7, 8, 9, 11, 12, 14, 16, 17, 19, 20, 21, 22, 24, 25, 27, 29, 30, 32, 33, 35, 37, 38, 40, 41, 42, 43, 45, 46, 48, 50, 51, 53, 54, 55, 56, 58, 59, 61, 63, 64, 66, 67, 69, 71, 72, 74, 75, 76, 77, 79, 80, 82, 84, 85, 87, 88, 90, 92, 93, 95, 96, 97, 98, 100, 101, 103, 105, 106, 108, 109, 110, 111, 113, 114, 116, 118, 119, 121 ]
[ "nonn" ]
A069838
[ 6, 7, 8, 9, 10, 12, 13, 14, 15, 16, 20, 23, 27, 29, 30, 31, 32, 34, 35, 36, 37, 38, 39, 46, 47, 48, 49, 50, 57, 58, 59, 65, 66, 67, 68, 69, 70, 71, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123 ]
[ "nonn" ]
A243083
[ 1, 1, 2, 4, 8, 16, 31, 63, 120, 240, 459, 897, 1716, 3294, 6258, 11852, 22283, 41647, 78197, 144013, 264485, 489979, 892277, 1612753, 2933983, 5288025, 9454944, 16891074, 30121434, 53179092, 93997401, 164816943, 289313718, 502617530, 877419533, 1514746093 ]
[ "nonn" ]
A314489
[ 1, 5, 8, 14, 18, 24, 26, 34, 35, 42, 45, 53, 54, 60, 66, 68, 73, 80, 86, 86, 92, 99, 101, 102, 115, 117, 119, 122, 135, 131, 135, 148, 152, 150, 154, 169, 162, 168, 179, 187, 179, 187, 201, 196, 198, 214, 220, 212, 218, 235 ]
[ "nonn" ]
A139942
[ 2, 179, 191, 239, 263, 359, 443, 491, 599, 659, 863, 1019, 1103, 1283, 1583, 1607, 1619, 1667, 1787, 1871, 2027, 2039, 2087, 2423, 2447, 2531, 2699, 2711, 2843, 3011, 3119, 3299, 3347, 3467, 3623, 3719, 3851, 4127, 4139, 4271, 4463, 4523 ]
[ "nonn", "easy" ]
A327423
[ 2, 3, 5, 6, 8, 9, 11, 12, 15, 18, 21, 24, 25, 27, 28, 30, 31, 33, 34, 37, 40, 43, 46, 47, 49, 50, 52, 53, 55, 56, 59, 62, 65, 68, 69, 71, 72, 74, 75, 77, 78, 81, 84, 87, 90, 91, 93, 94, 96, 97, 99, 100, 103, 106, 109, 112, 113, 115, 116, 118, 119, 121, 122, 125, 128 ]
[ "nonn" ]
A069538
[ 3, 12, 21, 30, 102, 111, 120, 201, 210, 300, 1002, 1011, 1020, 1101, 1110, 1200, 2001 ]
[ "dead" ]
A116564
[ 0, 0, 0, 0, 0, 0, 2, 2, 2, 2, 6, 6, 12, 12, 20, 12, 20, 30, 20, 30, 42, 42, 42, 56, 56, 72, 56, 72, 90, 110, 110, 110, 132, 132, 132, 156, 182, 182, 210, 182, 240, 210, 240, 240, 272, 306, 342, 306 ]
[ "nonn", "uned", "obsc" ]
A045795
[ 1, 2, 4, 8, 10, 16, 24, 27, 30, 54, 63, 64, 108, 126, 165, 238, 252, 360, 432, 504, 512, 660, 864, 952, 1008, 1536, 1728, 2016, 2464, 2640, 4032, 4096, 5544, 10560, 13824, 16728, 17640, 23040, 32256, 45500, 47360, 60928, 65536, 110592, 152064, 153600 ]
[ "nonn" ]
A214621
[ 1080, 1260, 1800, 2016, 2673, 3024, 3267, 3402, 4032, 4500, 4653, 4950, 5346, 5400, 5670, 5757, 5940, 6048, 6345, 6534, 6804, 7056, 7560, 7575, 8064, 11084, 11542, 12654, 12915, 13026, 13068, 13260, 13860, 14018, 14490, 14652, 14904, 15124, 15129, 16032, 16320 ]
[ "nonn", "base" ]
A123214
[ 2, 3, 5, 7, 11, 31, 43, 1697, 12923, 13103, 77509 ]
[ "hard", "more", "nonn" ]
A248762
[ 1, 1, 1, 8, 8, 8, 8, 64, 1728, 1728, 1728, 13824, 13824, 13824, 46656000, 2985984000, 2985984000, 2985984000, 2985984000, 23887872000, 221225582592000, 221225582592000, 221225582592000, 1769804660736000, 221225582592000000, 221225582592000000 ]
[ "nonn", "easy" ]
A137740
[ 1, 32, 138, 348, 700, 1246, 2050, 3188, 4749, 6836, 9567, 13076, 17514, 23050, 29872, 38188, 48227, 60240, 74501, 91308, 110984, 133878, 160366, 190852, 225769, 265580, 310779, 361892, 419478, 484130, 556476, 637180, 726943, 826504, 936641, 1058172, 1191956 ]
[ "nonn", "easy" ]
A248932
[ 1, 4, 7, 5, 9, 7, 9, 9, 1, 5, 2, 1, 4, 1, 8, 0, 2, 3, 5, 0, 8, 4, 8, 9, 8, 6, 2, 2, 7, 3, 7, 3, 8, 1, 7, 3, 6, 3, 1, 2, 0, 6, 6, 1, 4, 5, 3, 3, 3, 1, 6, 9, 7, 7, 5, 1, 4, 7, 7, 7, 1, 2, 1, 6, 4, 7, 8, 5, 7, 0, 2, 9, 7, 8, 7, 8, 0, 7, 8, 9, 4, 9, 3, 7, 7, 4, 0, 7, 3, 3, 7, 0, 4, 9, 3, 8, 9, 2, 8, 9, 3, 8, 2, 7, 4 ]
[ "nonn", "cons", "easy", "fini", "full" ]
A091234
[ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 20, 0, 0, 0, 0, 0, 21, 0, 14, 0, 0, 0, 220, 0, 0, 0, 0, 0, 208, 0, 0, 0, 0, 0, 791, 0, 0, 0, 161, 0, 181, 0, 0, 0, 0, 0, 2330, 0, 0, 0, 0, 0, 181, 0, 134, 0, 0, 0, 25068, 0, 0, 0, 0, 0, 181, 0, 0, 0, 92, 0, 24243, 0, 0, 0, 0, 0, 181, 0, 1774, 0, 0, 0 ]
[ "nonn" ]
A050876
[ 3, 5, 6, 7, 9, 11, 12, 14, 15, 17, 18, 19, 21, 22, 24, 25, 27, 29, 31, 34, 37, 39, 41, 43, 46, 49, 51, 53, 54, 55, 59, 62, 65, 66, 67, 71, 74, 77, 78, 79, 81, 83, 85, 88, 90, 92, 94, 97, 99, 101, 103, 106, 109, 111, 113, 115, 118, 120, 122, 124, 127, 129, 131, 133, 136, 139, 141, 143, 145, 148, 150, 152 ]
[ "nonn", "base" ]
A064812
[ 5, 3, 2, 2131, 1531, 33301, 16651, 15514861, 857095381, 205528443121, 1389122693971, 216857744866621, 758083947856951, 107588900851484910, 69257563144280940 ]
[ "nonn" ]
A331074
[ 0, 1, 3, 12, 15, 30, 36, 75, 64, 108, 102, 198, 147, 237, 201, 361, 255, 435, 318, 552, 417, 630, 459, 963, 537, 888, 696, 1099, 714, 1302, 810, 1503, 1044, 1506, 1000, 2103, 1119, 1869, 1443, 2337, 1344, 2568, 1464, 2697, 1884, 2676, 1710, 3966, 1839, 3150, 2400, 3714, 2115, 4189, 2292, 4359, 2943, 4098 ]
[ "nonn" ]
A280785
[ 1, 1, 1, 2, 2, 1, 5, 5, 2, 1, 13, 13, 6, 2, 1, 35, 35, 16, 6, 2, 1, 95, 95, 46, 17, 6, 2, 1, 262, 262, 128, 49, 17, 6, 2, 1, 727, 727, 364, 139, 50, 17, 6, 2, 1, 2033, 2033, 1029, 401, 142, 50, 17, 6, 2, 1, 5714, 5714, 2930, 1147, 412, 143, 50, 17, 6, 2, 1, 16136, 16136, 8344, 3299, 1184, 415, 143, 50, 17, 6, 2, 1 ]
[ "nonn", "tabl" ]
A349573
[ 0, 0, 0, 1, -1, 2, -1, 6, 4, 1, -4, 11, -4, 3, 3, 25, -7, 20, -7, 12, 7, -2, -8, 44, 0, 0, 36, 22, -13, 23, -12, 90, 0, -5, 4, 77, -16, -3, 4, 55, -19, 41, -19, 15, 43, -2, -20, 155, 12, 24, -3, 25, -23, 134, -9, 93, 1, -11, -28, 98, -27, -6, 75, 301, -5, 32, -31, 18, 4, 46, -34, 266, -33, -12, 48, 28, -5, 50, -37 ]
[ "sign", "look" ]
A250358
[ 6, 36, 216, 1293, 7712, 45866, 272760, 1621963, 9644496, 57346376, 340979312, 2027446948, 12055094608, 71678940042, 426199029864, 2534155836542, 15067950109140, 89593195408640, 532716168060704, 3167500770096043 ]
[ "nonn" ]
A147145
[ 1, 1, 1, 1, 1, 1, 1, 1, 13, 25, 51, 161, 489, 1381, 4593, 16307, 70385 ]
[ "nonn" ]
A196389
[ 1, 0, 1, 0, 1, 1, 0, 0, 2, 1, 0, 0, 0, 3, 1, 0, 0, 0, 0, 4, 1, 0, 0, 0, 0, 0, 5, 1, 0, 0, 0, 0, 0, 0, 6, 1, 0, 0, 0, 0, 0, 0, 0, 7, 1, 0, 0, 0, 0, 0, 0, 0, 0, 8, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 9, 1 ]
[ "nonn", "tabl", "easy" ]
A159807
[ 1, 3, -233, -2151, 162705, 2570283, -189162201, -4299537519, 307542155937, 9246531104595, -642087222317001, -24302866940070904, 1636327584987644000, 75484508348928840000, -4.921433057324341e+21, -2.705058134581439e+23, 1.7053284557712928e+25 ]
[ "sign", "frac" ]
A162540
[ 5, 35, 105, 231, 429, 715, 1105, 1615, 2261, 3059, 4025, 5175, 6525, 8091, 9889, 11935, 14245, 16835, 19721, 22919, 26445, 30315, 34545, 39151, 44149, 49555, 55385, 61655, 68381, 75579, 83265, 91455, 100165, 109411, 119209, 129575, 140525, 152075, 164241 ]
[ "nonn", "easy" ]
A008921
[ 1, 56, 938, 7688, 39746, 150248, 455114, 1171928, 2668610, 5521880, 10585514, 19068392, 32622338, 53439752, 84361034, 128991800, 191829890, 278402168, 395411114, 550891208, 754375106, 1017069608, 1352041418, 1774412696, 2301566402, 2953361432, 3752357546, 4724050088, 5897114498 ]
[ "nonn" ]
A177172
[ 1, 10, 18, 134, 626, 4254, 25850, 177270, 1192450, 8392846, 59270218, 427294630, 3103586514, 22805459262, 168767740698, 1258575706582, 9441189199010, 71224314198510, 539889535264490, 4110514381564422, 31418080601125744 ]
[ "easy", "nonn" ]
A153001
[ 4, 7, 9, 10, 15, 22, 21, 14, 15, 23, 28, 35, 52, 64, 49, 22, 15, 23, 28, 35, 52, 65, 56, 43, 53, 74, 91, 122, 168, 176, 113, 38, 15, 23, 28, 35, 52, 65, 56, 43, 53, 74, 91, 122, 168, 177, 120, 59, 53, 74, 91, 122, 169, 186, 155, 139, 180, 239, 304, 412, 512, 464, 257, 70, 15 ]
[ "nonn" ]
A101565
[ 1, 0, 0, 1, 0, 2, 2, 0, 1, 2, 2, 2, 2, 0, 2, 1, 0, 4, 2, 2, 2, 0, 0, 2, 3, 0, 2, 0, 0, 4, 2, 0, 0, 2, 2, 5, 2, 0, 0, 2, 2, 0, 0, 2, 2, 2, 2, 2, 1, 2, 2, 2, 0, 6, 0, -2, 0, 2, 2, 4, 2, 0, 0, 1, 0, 2, 2, 2, 4, 2, 0, 6, 2, 0, 0, 2, 0, 4, 2, 2, 5, 0, 0, 2, 2, 2, 2, 2, 0, 4, 2, 0, 2, 0, 0, 2, 2, -2, 2, 5, 0 ]
[ "easy", "sign" ]
A288795
[ 11, 41, 143, 497, 1751, 6281, 22943, 85217, 321191, 1225721, 4725743, 18371537, 71891831, 282784361, 1116788543, 4424107457, 17567289671, 69881738201, 278364691343, 1109971980977, 4429427570711, 17686329223241, 70651173714143, 282322265320097, 1128441772670951 ]
[ "nonn", "easy" ]
A251814
[ 738, 771, 1754, 5401, 18227, 62457, 213857, 735191, 2535595, 8732059, 30044333, 103433297, 356211437, 1226555559, 4222869527, 14539251609, 50061142057, 172368825829, 593481175903, 2043402198235, 7035653624543, 24224571439559 ]
[ "nonn" ]
A098409
[ 1, 5, 27, 155, 931, 5775, 36645, 236325, 1542195, 10153775, 67313377, 448691985, 3004182349, 20188647185, 136094684907, 919884469275, 6232016686995, 42305974804575, 287706424085745, 1959685788407025, 13367193276457880, 91295551930615000, 624255065007468200 ]
[ "easy", "nonn" ]
A334073
[ 8, 3, 5, 2, 2, 5, 9, 2, 2, 4, 2, 0, 5, 2, 4, 5, 9, 4, 3, 4, 8, 7, 8, 2, 9, 8, 0, 5, 7, 5, 1, 7, 6, 2, 4, 1, 1, 9, 4, 0, 4, 3, 3, 1, 7, 1, 0, 5, 3, 2, 5, 3, 6, 6, 9, 4, 3, 8, 9, 1, 5, 7, 5, 3, 1, 5, 9, 3, 0, 3, 1, 8, 5, 7, 9, 4, 0, 5, 1, 0, 5, 3, 3, 8, 3, 3, 5 ]
[ "nonn", "cons" ]
A029023
[ 1, 1, 2, 2, 3, 3, 4, 5, 6, 7, 8, 10, 11, 13, 15, 17, 19, 21, 24, 26, 29, 32, 36, 39, 43, 47, 51, 55, 60, 65, 70, 75, 81, 87, 93, 100, 107, 114, 121, 129, 137, 145, 154, 163, 173, 182, 193, 203, 214, 225, 237, 249, 261, 274, 287, 301, 315, 330, 345, 360, 376 ]
[ "nonn", "easy" ]
A370249
[ 1, 2, 10, 62, 394, 2552, 16810, 112114, 754698, 5116832, 34891260, 239036470, 1644001546, 11344059092, 78497737370, 544507428962, 3785080540682, 26360971309824, 183895618774084, 1284778549054704, 8988079638054044, 62955181189933280, 441442177486335000 ]
[ "nonn" ]
A086426
[ 0, 1, 3, 2, 7, 8, 6, 5, 4, 17, 20, 18, 22, 21, 16, 19, 15, 12, 13, 14, 11, 10, 9, 45, 54, 48, 61, 57, 46, 55, 50, 63, 64, 49, 62, 59, 58, 44, 53, 47, 60, 56, 43, 52, 40, 31, 34, 41, 32, 36, 35, 42, 51, 39, 30, 33, 38, 29, 26, 27, 37, 28, 25, 24, 23, 129, 157, 138, 180, 166 ]
[ "nonn" ]
A231026
[ 0, 12, 60, 1074, 12400, 162288, 2049324, 26149710, 332659424, 4235875140, 53922195170, 686478044994, 8739276731656, 111257016629792, 1416375531056864, 18031410076232628, 229551897159731070, 2922349174918753300 ]
[ "nonn" ]
A060954
[ 11, 7, 31, 41, 17, 61, 71, 3, 13, 101, 37, 11, 131, 47, 151, 23, 19, 181, 191, 67, 211, 17, 11, 241, 251, 29, 271, 281, 97, 43, 311, 107, 331, 31, 13, 19, 53, 127, 23, 401, 137, 421, 431, 7, 41, 461, 157, 37, 491, 167, 73, 521, 59, 541, 29, 17, 571, 83, 197, 601, 47 ]
[ "nonn" ]
A025956
[ 1, 27, 493, 7671, 109813, 1496031, 19737181, 254700567, 3234969925, 40605328335, 505121007469, 6240023291463, 76665993102037, 937849058035839, 11432760118860156, 138978835693603950, 1685603171125077200 ]
[ "nonn", "easy" ]
A274621
[ 1, -2, 3, -6, 11, -18, 28, -44, 69, -104, 152, -222, 323, -460, 645, -902, 1254, -1722, 2343, -3174, 4278, -5722, 7601, -10056, 13250, -17358, 22623, -29382, 38021, -48984, 62857, -80404, 102528, -130282, 165002, -208398, 262495, -329666, 412878, -515840, 642941, -799362, 991478 ]
[ "sign", "easy" ]
A163892
[ 1, 2, 6, 3, 4, 8, 12, 18, 9, 16, 32, 24, 108, 36, 48, 54, 72, 64, 96, 192, 216, 324, 144, 162, 288, 576, 648, 384, 1944, 432, 864, 486, 972, 1296, 27, 768, 1152, 128, 5832, 1728, 1536, 3456, 2304 ]
[ "nonn" ]
A032579
[ 1, 2, 3, 4, 5, 6, 7, 8, 9, 14, 28, 126, 385, 1260, 1484, 3850, 12480, 25326, 38160, 50323, 53158, 89768, 118413, 255920, 256046, 296858, 297000, 538440, 553553, 723680, 1616880, 1807840, 2935059, 3909703, 5362986, 5535530, 13068055 ]
[ "nonn", "base" ]
A337091
[ 3, 6, 9, 12, 14, 15, 18, 21, 24, 27, 28, 30, 33, 35, 36, 39, 40, 42, 44, 45, 48, 51, 52, 54, 56, 57, 60, 63, 66, 69, 70, 72, 75, 77, 78, 80, 81, 84, 85, 87, 88, 90, 91, 93, 95, 96, 98, 99, 102, 104, 105, 108, 111, 112, 114, 117, 120, 123, 126, 129, 132, 133, 135, 138, 140, 141 ]
[ "nonn" ]
A136074
[ 43, 131, 197, 263, 461, 593, 659, 1187, 1451, 1847, 1913, 1979, 2111, 2837, 2903, 2969, 4289, 4421, 4751, 5081, 5147, 5279, 5741, 6203, 6269, 6599, 7127, 7193, 7457, 7523, 7919, 8513, 9041, 9239, 9437, 9767, 10427, 10691, 11351, 11549, 11681, 12011 ]
[ "nonn" ]
A238164
[ 1, -1, 7, -465, 48006, -12072375, 6301495035, -12203470904625, 20180112406353900, -53495387545025176000, 2.1626723607296845e+23, -1.2806303678747993e+27, 1.0743714652441928e+31, -1.2417815891651111e+35, 1.9309156812274826e+39 ]
[ "sign" ]