id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A265613
[ 0, 1, 8, 44, 210, 935, 4004, 16744, 68952, 281010, 1136960, 4576264, 18349630, 73370115, 292746300, 1166182800, 4639918800, 18443677230, 73261092240, 290845019400, 1154169552900, 4578702310182, 18159992594568, 72014135814704, 285542883894800, 1132125641947300 ]
[ "nonn" ]
A327905
[ 2, 6, 8, 10, 12, 14, 18, 20, 21, 22, 24, 26, 28, 32, 33, 34, 35, 38, 40, 42, 44, 46, 48, 50, 52, 55, 56, 57, 58, 62, 63, 66, 68, 70, 74, 75, 76, 77, 80, 82, 84, 86, 88, 91, 93, 94, 95, 96, 98, 99, 100, 104, 106, 110, 112, 114, 116, 118, 122, 123, 125, 126, 132 ]
[ "nonn" ]
A317958
[ 12, 12212, 12212112212, 1.2212112212112213e+22, 1.2212112212112211e+46, 1.2212112212112213e+94 ]
[ "nonn" ]
A194454
[ 1, 15, 53, 115, 201, 311, 445, 603, 785, 991, 1221, 1475, 1753, 2055, 2381, 2731, 3105, 3503, 3925, 4371, 4841, 5335, 5853, 6395, 6961, 7551, 8165, 8803, 9465, 10151, 10861, 11595, 12353, 13135, 13941, 14771, 15625, 16503, 17405, 18331, 19281 ]
[ "nonn", "easy" ]
A110025
[ 509, 1229, 1409, 2131, 2311, 2699, 3539, 6211, 6449, 7411, 10321, 10589, 11549, 11909, 12119, 17159, 18121, 19709, 19889, 22349, 22531, 23011, 24391, 26189, 27479, 29671, 30389, 31771, 35311, 41491, 43649, 46411, 54601, 55229, 56311 ]
[ "easy", "nonn" ]
A043485
[ 8, 17, 26, 35, 44, 53, 62, 71, 72, 73, 74, 75, 76, 77, 78, 79, 89, 98, 107, 116, 125, 134, 143, 152, 153, 154, 155, 156, 157, 158, 159, 160, 170, 179, 188, 197, 206, 215, 224, 233, 234, 235, 236, 237, 238, 239, 240, 241, 251, 260, 269, 278, 287, 296, 305, 314 ]
[ "nonn", "base" ]
A355688
[ 1, 0, 0, 0, -1, 0, -1, 0, 0, 0, -1, 0, -1, 0, 0, 0, -1, 0, -1, 0, 0, 0, -1, 0, 0, 0, 0, 0, -1, 0, -1, 0, 0, 0, 1, 0, -1, 0, 0, 0, -1, 0, -1, 0, 0, 0, -1, 0, 0, 0, 0, 0, -1, 0, 1, 0, 0, 0, -1, 0, -1, 0, 0, 0, 1, 0, -1, 0, 0, 0, -1, 0, -1, 0, 0, 0, 1, 0, -1, 0, 0, 0, -1, 0, 1, 0, 0, 0, -1, 0, 1, 0, 0, 0, 1, 0, -1, 0, 0, 0, -1, 0, -1, 0, 0, 0, -1, 0 ]
[ "sign", "mult" ]
A303826
[ 1, 3, 99, 43881, 280974025, 26916213134875, 39339805703866120000, 8.879190338976316e+26, 3.1196721756883672e+35, 1.715750319988363e+45 ]
[ "nonn" ]
A057399
[ 6, 0, 84, 48, 738, 816, 5520, 8904, 49662, 79200, 449028, 812352, 3772350, 7762032, 31487916, 72083112, 266083134, 654302352, 2277479412, 5812957368, 19418064216, 51144852552, 165263023776, 447259989384 ]
[ "nonn" ]
A192741
[ 6, 3, 1, 8, 7, 4, 5, 11, 3, 13, 9, 7, 5, 12, 11, 9, 12, 18, 10, 20, 16, 16, 14, 21, 20, 17, 18, 24, 16, 26, 17, 23, 21, 28, 27, 24, 25, 31, 23, 33, 17, 23, 21, 28, 27, 24, 25, 31, 23, 33, 16, 22, 20, 27, 26, 23, 24, 30, 22, 32, 16 ]
[ "nonn", "word" ]
A210233
[ 1, 2, 1, 3, 5, 1, 4, 10, 12, 1, 5, 18, 30, 27, 1, 6, 27, 68, 83, 58, 1, 7, 39, 119, 225, 217, 121, 1, 8, 52, 200, 454, 680, 544, 248, 1, 9, 68, 300, 866, 1566, 1928, 1320, 503, 1, 10, 85, 440, 1450, 3332, 5014, 5216, 3121, 1014, 1, 11, 105, 605, 2350, 6182 ]
[ "nonn", "tabl" ]
A227181
[ 0, 1, 2, 3, 4, 3, 4, 5, 6, 7, 8, 9, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36 ]
[ "nonn", "tabf" ]
A337997
[ 1, 0, 1, 0, 2, 8, 0, 6, 48, 162, 0, 24, 384, 1944, 6144, 0, 120, 3840, 29160, 122880, 375000, 0, 720, 46080, 524880, 2949120, 11250000, 33592320, 0, 5040, 645120, 11022480, 82575360, 393750000, 1410877440, 4150656720 ]
[ "nonn", "tabl", "changed" ]
A302116
[ 0, 0, 16, 1504, 361392, 161889216, 116561117520, 123088454370720, 179216801666043140, 344096256861334860000, 8.423476373882193e+23, 2.5607368174701946e+27, 9.464483277445285e+30, 4.179515815316208e+34 ]
[ "nonn" ]
A117993
[ 1, 7, 55, 1177, 3553, 9517, 11799, 13579, 17935, 31753, 71995, 93799, 97713, 117397, 135373, 371911, 377719, 599515, 733597, 777573, 1131313, 1331155, 1371591, 1555119, 3391315, 3731377, 3979717, 5131573, 7137715, 7333353, 9193933, 13755771, 13979515 ]
[ "base", "nonn" ]
A322351
[ 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 2, 1, 1, 1, 1, 1, 2, 1, 2, 1, 1, 1, 2, 4, 1, 2, 2, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 4, 1, 1, 1, 2, 3, 1, 1, 2, 6, 4, 1, 2, 1, 2, 1, 4, 1, 1, 1, 2, 1, 1, 3, 1, 1, 1, 1, 2, 1, 1, 1, 2, 1, 1, 5, 2, 1, 1, 1, 4, 2, 1, 1, 2, 1, 1, 1, 4, 1, 3, 1, 2, 1, 1, 1, 2, 1, 6, 3, 4, 1, 1, 1, 4, 1 ]
[ "nonn" ]
A016344
[ 1, 1, 0, 0, 0, -1, -1, 0, 0, 0, 1, 1, 0, 0, 0, -1, -1, -1, -1, 0, 1, 1, 1, 1, 0, -1, -1, -1, -1, 0, 1, 1, 1, 1, 1, 0, -1, -1, -1, -1, 0, 1, 1, 1, 1, 0, -1, -1, -1, -1, 0, 0, 0, 1, 1, 0, 0, 0, -1, -1, 0, 0, 0, 1, 1 ]
[ "sign", "fini", "full" ]
A040248
[ 16, 3, 1, 1, 2, 2, 1, 1, 3, 32, 3, 1, 1, 2, 2, 1, 1, 3, 32, 3, 1, 1, 2, 2, 1, 1, 3, 32, 3, 1, 1, 2, 2, 1, 1, 3, 32, 3, 1, 1, 2, 2, 1, 1, 3, 32, 3, 1, 1, 2, 2, 1, 1, 3, 32, 3, 1, 1, 2, 2, 1, 1, 3, 32, 3, 1, 1, 2, 2, 1, 1, 3, 32, 3, 1, 1, 2, 2, 1, 1, 3, 32, 3, 1, 1, 2, 2, 1, 1 ]
[ "nonn", "cofr", "easy" ]
A055360
[ 120, 4320, 83628, 1169768, 13329084, 131888624, 1178097904, 9745456704, 75988344096, 565644812320, 4057808611860, 28255332957880, 192032572801508, 1279389256340592, 8384651931678936, 54203683325174740 ]
[ "nonn" ]
A344860
[ 192, 238, 250, 293, 312, 346, 382, 432, 436, 446, 465, 510, 544, 554, 560, 571, 578, 583, 593, 607, 609, 631, 658, 671, 727, 729, 771, 780, 803, 812, 825, 844, 845, 848, 860, 866, 877, 883, 894, 917, 945, 962, 967, 974, 991, 1000, 1004, 1031, 1042, 1052, 1061 ]
[ "nonn", "base" ]
A020640
[ 1, 2, 4, 5, 6, 8, 10, 12, 16, 18, 20, 22, 26, 34, 37, 40, 42, 44, 48, 52, 54, 60, 62, 64, 70, 76, 79, 88, 94, 96, 102, 104, 108, 114, 118, 122, 130, 136, 152, 156, 158, 170, 172, 174, 194, 196, 202, 207, 210, 217, 228, 234, 238, 239, 248, 262, 268, 280, 281 ]
[ "nonn", "nice" ]
A011881
[ 0, 0, 0, 0, 0, 0, 1, 1, 2, 2, 3, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 15, 16, 18, 19, 21, 23, 25, 27, 29, 31, 33, 35, 37, 40, 42, 45, 47, 50, 52, 55, 58, 61, 64, 67, 70, 73, 77, 80, 84, 87, 91, 94, 98, 102, 106, 110, 114, 118 ]
[ "nonn", "easy" ]
A233662
[ 37544, 411848, 5005852, 71366708, 1053739156, 16463908576, 259162493248, 4182001054596, 67387441794520, 1099891689216108, 17887501325024892, 293120130618828000, 4785882498091127000, 78527423974881840000 ]
[ "nonn" ]
A018064
[ 1, 2, 3, 4, 7, 11, 19, 30, 49, 80, 130, 211, 343, 558, 907, 1476, 2401, 3905, 6352, 10333, 16807, 27338, 44467, 72329, 117649, 191365, 311270, 506304, 823543, 1339556, 2178890, 3544131, 5764801, 9376890, 15252230, 24808920, 40353607, 65638231 ]
[ "nonn" ]
A046032
[ 0, 3, 35, 575, 14399, 518399, 25401599, 1625702399, 131681894399, 13168189439999, 1593350922239999, 229442532802560000, 38775788043632640000, 7.600054456551997e+21, 1.7100122527241995e+24, 4.3776313669739506e+26, 1.2651354650554717e+29 ]
[ "nonn", "easy" ]
A284072
[ 0, 33, 3174, 147864, 5555954, 188451507, 6011835223, 183456426810, 5420265572272, 156205777797592, 4413231997830430, 122681753540269740, 3364621054582473700, 91226318376089630000, 2.449248911517215e+21 ]
[ "nonn" ]
A331067
[ 1, 4, 8, 8, 8, 8, 1 ]
[ "nonn", "fini", "full" ]
A112806
[ 1, 1, 2, 6, 21, 79, 312, 1277, 5369, 23049, 100612, 445214, 1992606, 9004260, 41025315, 188259072, 869305315, 4036286518, 18832973733, 88259024068, 415252542641, 1960718710035, 9288106921038, 44129146527731 ]
[ "nonn" ]
A291768
[ 2, 4, 5, 6, 5, 8, 5, 10, 8, 8, 5, 11, 5, 8, 13, 14, 5, 15, 5, 11, 13, 8, 5, 17, 8, 8, 11, 11, 5, 18, 5, 19, 13, 8, 13, 20, 5, 8, 13, 17, 5, 18, 5, 11, 18, 8, 5, 22, 8, 15, 13, 11, 5, 20, 13, 17, 13, 8, 5, 24, 5, 8, 18, 25, 13, 18, 5, 11, 13, 18, 5, 27, 5, 8, 18, 11, 13, 18, 5, 22, 17, 8, 5, 24, 13, 8, 13, 17, 5, 28, 13, 11, 13, 8, 13, 29, 5, 15, 18, 20, 5 ]
[ "nonn" ]
A182228
[ 0, 1, -1, 4, -7, 19, -40, 97, -217, 508, -1159, 2683, -6160, 14209, -32689, 75316, -173383, 399331, -919480, 2117473, -4875913, 11228332, -25856071, 59541067, -137109280, 315732481, -727060321, 1674257764, -3855438727, 8878212019, -20444528200, 47079164257, -108412748857 ]
[ "sign", "easy" ]
A085200
[ 0, 1, 0, 2, 0, 3, 0, 0, 0, 4, 0, 6, 0, 0, 0, 5, 0, 7, 0, 0, 0, 0, 0, 8, 0, 0, 0, 0, 0, 0, 0, 0, 0, 9, 0, 14, 0, 0, 0, 11, 0, 16, 0, 0, 0, 0, 0, 19, 0, 0, 0, 0, 0, 0, 0, 0, 0, 10, 0, 15, 0, 0, 0, 12, 0, 17, 0, 0, 0, 0, 0, 20, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 13, 0, 18, 0, 0, 0, 0, 0, 21, 0, 0, 0 ]
[ "nonn" ]
A390657
[ 1, 3, 9, 27, 85, 267, 837, 2631, 8269, 25983, 81657, 256623, 806473, 2534483, 7965057, 25031547, 78665957, 247221355, 776935701, 2441654415, 7673320077, 24114731415, 75784701705, 238166493207, 748479273097, 2352225180067, 7392273235777, 23231493333387 ]
[ "nonn", "new" ]
A345136
[ 1, 2, 3, 16, 5, 96, 7, 1184, 261, 1360, 11, 97428, 13, 24220, 16395, 15267456, 17, 14474736, 19, 251423600, 817971, 7760236, 23, 264344406312, 265675, 135208476, 1223270127, 971632668664, 29, 2584070688810, 31, 9176980861031424, 2128920321, 39671306896, 48694835 ]
[ "nonn" ]
A108070
[ 1, 1, 3, 7, 22, 82, 339, 1505, 7036, 33836, 166246, 829987, 4197273, 21456444, 110716585, 576027737, 3018986040, 15927330105, 84530870455, 451069339063, 2418927725532, 13030938290472, 70492771581350, 382816374644336, 2086362209298079, 11408580755666756 ]
[ "nonn" ]
A135556
[ 1, 4, 16, 25, 49, 64, 100, 121, 169, 196, 256, 289, 361, 400, 484, 529, 625, 676, 784, 841, 961, 1024, 1156, 1225, 1369, 1444, 1600, 1681, 1849, 1936, 2116, 2209, 2401, 2500, 2704, 2809, 3025, 3136, 3364, 3481, 3721, 3844, 4096, 4225, 4489, 4624, 4900 ]
[ "nonn", "easy" ]
A070741
[ 14, 57, 78, 148, 224, 252, 305, 490, 546, 585, 620, 639, 889, 897, 912, 1134, 1248, 1290, 1352, 1526, 1953, 2212, 2345, 2368, 2394, 2470, 2678, 2710, 3096, 3474, 3584, 3641, 3880, 4032, 4088, 4617, 4764, 4880, 5219, 5436, 5985, 6097, 6318, 6489, 6552, 6570 ]
[ "easy", "nonn" ]
A260297
[ 1, 2, 2, 6, 1, 5, 4, 1, 1, 12, 1, 31, 32, 1, 46, 23, 58, 11, 1, 1, 46, 78, 82, 55, 75, 91, 102, 106, 33, 98, 126, 1, 100, 138, 44, 1, 129, 1, 1, 80, 1, 162, 190, 112, 183, 198, 210, 1, 1, 122, 89, 1, 177, 250, 241, 262, 187, 1, 217, 228, 282, 138, 306, 1, 25 ]
[ "nonn", "easy" ]
A243637
[ 4, 9, 21, 51, 127, 324, 844, 2243, 6073, 16737, 46905, 133555, 386047, 1131958, 3364454, 10129563, 30871733, 95176427, 296618011, 933821451, 2967726939, 9514201392, 30747183016, 100097739315, 328049191105, 1081610514581 ]
[ "nonn" ]
A213304
[ 2, 1, 10, 14, 101, 104, 144, 1001, 1014, 1044, 1444, 10010, 10014, 10144, 10444, 14444, 100120, 100104, 100144, 101444, 104444, 144444, 1000144, 1001040, 1001044, 1001444, 1014444, 1044444, 1444444, 10001044, 10001444, 10010404, 10010444, 10014444, 10144444, 10444444, 14444444, 100010404, 100010444, 100014444, 100104044, 100104444, 100144444, 101444444, 104444444, 144444444 ]
[ "nonn", "base" ]
A312387
[ 1, 4, 8, 14, 17, 23, 28, 32, 37, 42, 47, 48, 58, 59, 66, 68, 76, 78, 81, 90, 90, 100, 99, 110, 110, 113, 123, 123, 133, 131, 143, 142, 144, 158, 153, 166, 163, 176, 174, 176, 192, 184, 201, 194, 210, 205, 208, 225, 217, 233 ]
[ "nonn" ]
A087482
[ 2, 2, 2, 6, 8, 21, 34, 84, 150, 331, 614, 1417, 2638, 5508, 10874, 23437, 44862, 95887, 185238, 390297, 765510, 1557427, 3043918, 6525948, 12706892, 25836122, 51135384, 105070336, 206266718, 426254492 ]
[ "nonn", "more" ]
A052267
[ 1, 6, 27, 92, 267, 678, 1561, 3312, 6582, 12372, 22194, 38232, 63594, 102564, 160974, 246576, 369567, 543114, 784069, 1113684, 1558557, 2151578, 2933151, 3952416, 5268796, 6953544, 9091668, 11783856, 15148836, 19325736, 24476940, 30790944, 38485773, 47812398 ]
[ "nonn", "easy" ]
A235659
[ 11520, 550175, 29920256, 1760232169, 111788667635, 7311691586871, 476303656695622, 30073558582073390, 1816505165495056100, 104267586694590460000, 5.682110684004293e+21, 2.942997782115723e+23 ]
[ "nonn" ]
A390476
[ 1, 1, 2, 5, 14, 41, 125, 394, 1276, 4225, 14249, 48803, 169356, 594337, 2106112, 7526678, 27098673, 98206226, 357980257, 1311713185, 4828900696, 17852097526, 66250699580, 246719121941, 921713219252, 3453462774565, 12974133874235, 48862615196046 ]
[ "nonn", "new" ]
A372124
[ 1, 1, 5, 8, 86, 12, 2418, -6015, 97271, -490693, 4991069, -33481184, 294850612, -2232642956, 18815166552, -150373925928, 1255171140378, -10300278908424, 86135158514634, -717384480699522, 6029697856319760, -50699911500290456, 428507430151063550 ]
[ "sign" ]
A053943
[ 4, 9, 49, 44944, 4439449, 344443393449, 433433939449, 3.4449444994349998e+40 ]
[ "nonn", "base", "more" ]
A228851
[ 5, 23, 157, 839, 3449, 5939, 13417, 73951, 453991, 500471, 6949309, 8282063, 26332367, 30345169, 259778821, 272282191, 438571597, 859046141, 1037917517, 3321660649, 398296179, 12252989773 ]
[ "nonn" ]
A067783
[ 1, 2, 3, 4, 6, 8, 10, 12, 15, 16, 24, 30, 56, 92, 120, 144, 182, 336, 344, 348, 360, 376, 439, 1058, 1407, 4122, 5432, 7040, 7904, 9516, 17400, 23898, 25356, 29721, 33840, 40086, 40090, 40114, 40120, 44936, 53232, 63416, 85692, 93228, 100347, 112424, 159222 ]
[ "nonn" ]
A141899
[ 97, 307, 727, 937, 1567, 1777, 1987, 2617, 3037, 3457, 3877, 4297, 4507, 5347, 5557, 6397, 6607, 7027, 7237, 7867, 8287, 8707, 9127, 9337, 9547, 9967, 10177, 10597, 11437, 12277, 12487, 12697, 12907, 13327, 13537, 14797, 15217, 15427, 16057, 16267, 16477, 17107, 17317, 17737, 18367, 18787 ]
[ "nonn" ]
A005129
[ 1, 0, 54, 72, 0, 432, 270, 0, 918, 720, 0, 2160, 936, 0, 2700, 2160, 0, 5184, 2214, 0, 5616, 3600, 0, 9504, 4590, 0, 9180, 6552, 0, 15120, 5184, 0, 14742, 10800, 0, 21600, 9360, 0, 19548, 12240, 0, 30240, 13500, 0, 28080, 17712, 0, 39744, 14760, 0, 32454 ]
[ "nonn", "nice", "easy" ]
A234254
[ 4, 5, 13, 18, 37, 55, 100, 150, 251, 376, 599, 885, 1355, 1978, 2944, 4235, 6160, 8745, 12484, 17501, 24589, 34075, 47233, 64756, 88695, 120420, 163210, 219595, 294828, 393407, 523699, 693465, 915978, 1204329, 1579472, 2063035, 2687930, 3489365, 4518710 ]
[ "nonn" ]
A014111
[ 1, -1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, -1, 1, 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, -1, 1, -1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1, 1, -1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ]
[ "sign", "easy" ]
A136494
[ 1, 1, 1, 2, 2, 2, 2, 6, 6, 4, 4, 6, 4, 6, 6, 24, 24, 12, 12, 12, 12, 12, 12, 24, 12, 12, 12, 24, 12, 24, 24, 120, 120, 48, 48, 36, 48, 36, 36, 48, 48, 36, 36, 48, 36, 48, 48, 120, 48, 36, 36, 48, 36, 48, 48, 120, 36, 48, 48, 120, 48, 120, 120, 720, 720 ]
[ "base", "nonn" ]
A169955
[ 1, 0, 3, 1, 6, 9, 30, 51, 198, 470, 1623, 4830, 16070, 51948, 175047, 588120, 2015226, 6933048, 24123941, 84428820, 297753519 ]
[ "nonn", "more" ]
A283961
[ 1, 2, 4, 3, 6, 10, 5, 8, 13, 18, 7, 11, 16, 22, 29, 9, 14, 20, 26, 34, 43, 12, 17, 24, 31, 39, 49, 59, 15, 21, 28, 36, 45, 55, 66, 78, 19, 25, 33, 41, 51, 62, 73, 86, 99, 23, 30, 38, 47, 57, 69, 81, 94, 108, 123, 27, 35, 44, 53, 64, 76, 89, 103, 117, 133 ]
[ "nonn", "tabl", "easy" ]
A046788
[ 0, 0, 0, 0, 960, 11136, 98256, 820896, 6523248, 49672560, 367817184, 2663082864, 18939278736, 132735870240, 918669297696 ]
[ "nonn", "more" ]
A059084
[ 1, 1, 1, 2, 1, 0, 2, 5, 4, 1, 0, 0, 12, 44, 67, 56, 28, 8, 1, 0, 0, 12, 268, 1411, 4032, 7840, 11392, 12864, 11440, 8008, 4368, 1820, 560, 120, 16, 1, 0, 0, 0, 1120, 20160, 159656, 827092, 3251736, 10389635, 27934400, 64432160, 128980800, 225774640 ]
[ "easy", "nonn", "tabf" ]
A043920
[ 12, 36, 61, 90, 110, 134, 159, 183, 208, 232, 258, 281, 306, 330, 355, 379, 404, 433, 453, 477, 502, 526, 551, 575, 636, 649, 673, 698, 722, 747, 776, 796, 820, 845, 869, 894, 918, 944, 967, 992, 1016, 1041, 1065, 1090, 1119 ]
[ "nonn", "base" ]
A059153
[ 4, 24, 112, 480, 1984, 8064, 32512, 130560, 523264, 2095104, 8384512, 33546240, 134201344, 536838144, 2147418112, 8589803520, 34359476224, 137438429184, 549754765312, 2199021158400, 8796088827904, 35184363700224, 140737471578112, 562949919866880 ]
[ "easy", "nonn" ]
A171566
[ 3, 5, 7, 13, 17, 23, 37, 43, 97, 107, 113, 127, 157, 167, 223, 283, 317, 373, 433, 547, 563, 587, 617, 647, 743, 757, 773, 937, 1123, 1277, 1297, 1423, 1483, 1487, 1543, 1583, 1597, 1667, 1697, 1823, 1913, 1933, 1973, 2137, 2143, 2243, 2333, 2437, 2467 ]
[ "nonn" ]
A091832
[ 7, 18, 19, 136, 349, 357, 1354, 6996, 7135, 9531, 11558, 15996, 17432, 52118, 151048, 427802, 821834, 877819, 972918, 1046690, 1540789, 3653077, 8200738, 9628573, 164153335, 5607624822, 86457467082, 141885251873, 151882622551 ]
[ "nonn" ]
A271949
[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 3, 4, 5, 6, 8, 14, 26, 46, 76, 200, 356, 596, 1044, 1952, 5136, 17888, 48376, 109520, 225248, 724672, 1749280, 5359328, 18277312, 57803136, 235710976, 1067767168, 3411743616, 9748806656, 29696723456, 156028988416 ]
[ "nonn" ]
A236243
[ 0, 1, 2, 7, 10, 6, 4, 8, 35, 3, 67, 30, 5, 13, 89, 15, 143, 12, 22, 118, 385, 9, 11, 112, 19, 21, 23, 14, 355, 33, 26, 247, 69, 18, 70, 188, 17, 32, 61, 58, 888, 27, 20, 403, 871, 29, 250, 31, 65, 77, 1254, 55, 28, 57, 108, 59, 823, 34, 36, 633, 85, 116, 25, 80, 1710, 64, 238, 151, 1202, 54, 1677, 152, 53 ]
[ "nonn" ]
A185576
[ 2, 8, 3, 7, 2, 9, 7, 4, 7, 9, 4, 8, 0, 6, 1, 9, 4, 7, 6, 6, 6, 5, 9, 1, 7, 1, 0, 4, 6, 0, 7, 7, 3, 8, 8, 2, 2, 3, 8, 9, 2, 1, 8, 7, 0, 2, 1, 5, 8, 4, 8, 3, 5, 9, 9, 0, 0, 3, 7, 1, 9, 0, 0, 6, 9, 9, 9, 2, 4, 7, 7, 1, 1, 1, 6, 2, 2, 7, 3, 3, 0, 9, 4, 7, 4, 0, 4, 1, 5, 3, 0, 7, 9, 2, 7, 1, 1, 0, 3, 5 ]
[ "cons", "nonn" ]
A021855
[ 0, 0, 1, 1, 7, 5, 0, 8, 8, 1, 3, 1, 6, 0, 9, 8, 7, 0, 7, 4, 0, 3, 0, 5, 5, 2, 2, 9, 1, 4, 2, 1, 8, 5, 6, 6, 3, 9, 2, 4, 7, 9, 4, 3, 5, 9, 5, 7, 6, 9, 6, 8, 2, 7, 2, 6, 2, 0, 4, 4, 6, 5, 3, 3, 4, 9, 0, 0, 1, 1, 7, 5, 0, 8, 8, 1, 3, 1, 6, 0, 9, 8, 7, 0, 7, 4, 0, 3, 0, 5, 5, 2, 2, 9, 1, 4, 2, 1, 8 ]
[ "nonn", "cons" ]
A319737
[ 1, 2, 3, 6, 7, 8, 9, 14, 16, 18, 19, 20, 21, 22, 26, 27, 33, 34, 44, 55, 59, 63, 67, 68, 69, 70, 74, 89, 90, 91, 92, 93, 94, 109, 125, 126, 127, 128, 129, 130, 131, 132, 133, 134, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 150, 151, 152, 153, 169 ]
[ "nonn" ]
A159640
[ 1, 1, 3, 18, 234, 7020, 498420, 84731400, 34655142600, 34169970603600, 81290360065964400, 466769247498767560000, 6.469888539580418e+24, 2.1649541031143992e+29, 1.748914873118905e+34, 3.410838720448876e+39 ]
[ "nonn" ]
A215104
[ 2, 3, 5, 19, 37, 53, 71, 73, 107, 139, 173, 223, 241, 257, 277, 311, 359, 379, 461, 479, 547, 563, 617, 631, 683, 719, 733, 751, 787, 821, 853, 887, 937, 971, 991, 1039, 1091, 1093, 1193, 1229, 1277, 1297, 1399, 1433, 1447, 1481, 1499, 1549, 1567, 1583, 1601 ]
[ "nonn" ]
A248089
[ 1, 4, 16, 64, 229, 592, -224, -18176, -175655, -1265732, -7914560, -44970752, -236014307, -1145932664, -5086940240, -19929220352, -61944816911, -81359219468, 858917862064, 10785877546432, 84667993188757, 555461238134080, 3268576565244544, 17688312222825472, 88631554966652240, 408731119650234800 ]
[ "sign", "easy" ]
A298354
[ 1, 1, 1, 4, 7, 13, 22, 43, 73, 130, 217, 373, 616, 1033, 1693, 2812, 4591, 7549, 12286, 20095, 32641, 53170, 86245, 140161, 227152, 368545, 596929, 967540, 1566535, 2537461, 4107382, 6650467, 10763473, 17423122, 28195777, 45633997, 73844872, 119503441 ]
[ "nonn", "easy" ]
A348822
[ 0, 1, 335, 11508322, 1324603148183, 404760320241653600, 2.8278072381137295e+23 ]
[ "nonn", "more" ]
A097535
[ 1, 1, 1, 2, 2, 3, 4, 4, 4, 5, 5, 5, 6, 7, 7, 8, 8, 8, 9, 9, 9, 12, 12, 12, 13, 13, 13, 14, 14, 15, 16, 16, 16, 17, 17, 17, 18, 19, 19, 20, 20, 20, 21, 21, 21, 24, 24, 24, 25, 25, 25, 26, 26, 27, 28, 28, 28, 29, 29, 29, 30, 31, 31, 32, 32, 32, 33, 33, 33, 36, 36, 36, 37, 37, 37, 38, 38, 39, 40, 40, 40, 41, 41, 41, 42, 43, 43, 44, 44, 44, 45, 45, 45, 48, 48, 48, 49 ]
[ "nonn", "easy" ]
A074296
[ 1, 4, 3, 4, 13, 12, 28, 10, 9, 13, 13, 12, 13, 112, 20, 10, 13, 12, 13, 13, 12, 13, 112, 111, 10, 109, 108, 167, 4, 112, 4, 94, 20, 101, 91, 167, 13, 94, 13, 13, 94, 93, 1511, 91, 90, 157, 743, 94, 750, 776, 775, 217, 743, 742, 743, 743, 742, 173, 217, 216 ]
[ "nonn" ]
A364829
[ 0, 0, 1, 2, 1, 6, 1, 6, 4, 8, 1, 24, 1, 10, 13, 14, 1, 28, 1, 32, 15, 14, 1, 64, 6, 16, 13, 38, 1, 84, 1, 30, 19, 20, 21, 104, 1, 22, 21, 88, 1, 102, 1, 50, 57, 26, 1, 148, 8, 54, 25, 56, 1, 98, 25, 106, 27, 32, 1, 300, 1, 34, 69, 62, 27, 134, 1, 68, 31, 144 ]
[ "nonn" ]
A001969
[ 0, 3, 5, 6, 9, 10, 12, 15, 17, 18, 20, 23, 24, 27, 29, 30, 33, 34, 36, 39, 40, 43, 45, 46, 48, 51, 53, 54, 57, 58, 60, 63, 65, 66, 68, 71, 72, 75, 77, 78, 80, 83, 85, 86, 89, 90, 92, 95, 96, 99, 101, 102, 105, 106, 108, 111, 113, 114, 116, 119, 120, 123, 125, 126, 129 ]
[ "easy", "core", "nonn", "nice", "base", "changed" ]
A108938
[ 0, 12, 24, 30, 36, 50, 54, 60, 62, 66, 72, 74, 116, 122, 134, 146, 150, 156, 164, 170, 176, 180, 194, 212, 234, 242, 246, 260, 270, 272, 276, 296, 302, 314, 332, 342, 354, 360, 362, 366, 380, 384, 386, 390, 410, 446, 452, 464, 470, 480, 486, 506, 510, 516, 522 ]
[ "nonn", "easy" ]
A020668
[ 0, 1, 4, 5, 8, 9, 13, 16, 17, 20, 25, 29, 32, 36, 37, 40, 41, 45, 49, 52, 53, 61, 64, 65, 68, 72, 73, 80, 81, 85, 89, 97, 100, 101, 104, 109, 113, 116, 117, 121, 125, 128, 136, 137, 144, 145, 148, 149, 153, 157, 160, 164, 169, 173, 180, 181, 185, 193, 196, 197, 200, 205, 208 ]
[ "easy", "nonn" ]
A272475
[ 4, 6, 8, 10, 11, 12, 16, 18, 20, 22, 23, 24, 28, 30, 32, 33, 35, 36, 40, 42, 43, 44, 46, 48, 50, 52, 54, 55, 56, 58, 60, 64, 66, 68, 69, 70, 72, 75, 76, 77, 78, 80, 82, 83, 84, 86, 88, 90, 92, 95, 96, 99, 100, 102, 104, 105, 106, 108, 110, 112, 114, 115, 116, 117 ]
[ "nonn" ]
A180208
[ 1, 2, 4, 8, 16, 32, 66, 148, 376, 1138, 3834, 14832, 60584, 263480, 1159034, 5218514 ]
[ "nonn", "more" ]
A263676
[ 6, 12, 30, 42, 56, 72, 240, 342, 420, 462, 506, 552, 600, 650, 870, 1056, 1190, 1482, 1722, 1806, 2550, 2652, 2970, 3540, 4422, 6320, 7140, 8010, 10302, 12656, 13572, 14042, 17292, 18360, 19182, 19460, 20022, 22952, 23562, 24180, 27060, 29070, 29756, 31152, 33306, 35156, 35532, 39006 ]
[ "nonn", "easy" ]
A052262
[ 0, 1, 13, 136, 1370, 13715, 137171, 1371738, 13717416, 137174205, 1371742105, 13717421116, 137174211238, 1371742112471, 13717421124815, 137174211248270, 1371742112482836, 13717421124828512, 137174211248285300, 1371742112482853000, 13717421124828533000 ]
[ "easy", "nonn" ]
A187952
[ 1, 3, 6, 8, 9, 11, 14, 16, 19, 21, 22, 24, 27, 29, 30, 32, 35, 37, 40, 42, 43, 45, 48, 50, 53, 55, 56, 58, 61, 63, 64, 66, 69, 71, 74, 76, 77, 79, 82, 84, 85, 87, 90, 92, 95, 97, 98, 100, 103, 105, 108, 110, 111, 113, 116, 118, 119, 121, 124, 126, 129, 131, 132, 134, 137, 139, 142, 144, 145, 147, 150, 152 ]
[ "nonn" ]
A275597
[ 1, 2, 7, 52, 851, 28786, 1933879, 255839048, 66839167987, 34634544150646, 35712147523563000, 73426704068062930000, 3.014198213779081e+23, 2.4722533580273835e+27, 4.053263302448954e+31, 1.3286600905650742e+36 ]
[ "nonn" ]
A285111
[ 0, 1, 2, 3, 4, 6, 8, 7, 5, 12, 16, 13, 14, 10, 24, 15, 32, 27, 26, 25, 28, 20, 48, 55, 9, 30, 11, 21, 64, 54, 52, 31, 50, 56, 40, 111, 96, 110, 18, 51, 60, 22, 42, 41, 49, 128, 108, 223, 17, 103, 104, 61, 62, 447, 100, 43, 112, 80, 222, 109, 192, 220, 57, 63, 36, 102, 120, 113, 44, 84, 82, 895, 98, 256, 99, 221, 216, 446, 34, 207, 23 ]
[ "nonn" ]
A008930
[ 1, 1, 1, 2, 3, 6, 11, 21, 41, 80, 157, 310, 614, 1218, 2421, 4819, 9602, 19147, 38204, 76266, 152307, 304256, 607941, 1214970, 2428482, 4854630, 9705518, 19405030, 38800412, 77585314, 155145677, 310251190, 620437691, 1240771141, 2481374234 ]
[ "nonn" ]
A164016
[ 6, 42, 114, 222, 366, 546, 762, 1014, 1302, 1626, 1986, 2382, 2814, 3282, 3786, 4326, 4902, 5514, 6162, 6846, 7566, 8322, 9114, 9942, 10806, 11706, 12642, 13614, 14622, 15666, 16746, 17862, 19014, 20202, 21426, 22686, 23982, 25314 ]
[ "easy", "nonn" ]
A267654
[ 2, 4, 2, 4, 6, 4, 6, 4, 6, 8, 6, 8, 6, 8, 6, 8, 10, 8, 10, 8, 10, 8, 10, 8, 10, 12, 10, 12, 10, 12, 10, 12, 10, 12, 10, 12, 14, 12, 14, 12, 14, 12, 14, 12, 14, 12, 14, 12, 14, 16, 14, 16, 14, 16, 14, 16, 14, 16, 14, 16, 14, 16, 14, 16 ]
[ "nonn", "tabf" ]
A100217
[ 1, 1, 4, 12, 42, 149, 543, 2007, 7501, 28265, 107196, 408653, 1564506, 6010964, 23164467, 89501021, 346588092, 1344804060, 5227147969, 20349230347, 79330194097, 309653982738, 1210071825851, 4733665388134, 18535196846866 ]
[ "easy", "nonn" ]
A359182
[ 1, 1, 2, 2, 4, 4, 8, 8, 8, 16, 12, 16, 16, 32, 24, 32, 32, 64, 48, 48, 64, 48, 72, 64, 128, 96, 96, 128, 96, 144, 128, 256, 192, 192, 256, 192, 288, 240, 256, 512, 288, 384, 288, 432, 384, 512, 384, 576, 480, 512, 1024, 576, 768, 480, 576, 864, 768, 1024, 768 ]
[ "nonn" ]
A112778
[ 0, 1, 2, 2, 3, 4, 4, 5, 4, 5, 5, 6, 6, 7, 6, 6, 7, 7, 8, 8, 9, 9, 10, 9, 8, 10, 10, 9, 9, 10, 10, 11, 10, 11, 11, 11, 12, 10, 10, 11, 11, 12, 11, 12, 12, 12, 13, 12, 13, 14, 13, 13, 12, 14, 12, 13, 13, 13, 14, 13, 14, 15, 14, 14, 13, 15, 15, 14, 14, 16, 14, 15, 14, 15, 16, 15, 15, 16 ]
[ "nonn" ]
A071433
[ 1, 2, 0, 1, 2, 3, 1, 2, 3, 4, 0, 3, 4, 2, 1, 3, 2, 1, 0, 2, 1, 4, 5, 1, 4, 5, 1, 2, 0, 1, 2, 3, 1, 2, 3, 4, 2, 3, 4, 2, 3, 4, 2, 1, 0, 2, 8, 4, 5, 3, 4, 5, 6, 2, 5, 1, 2, 3, 1, 2, 3, 4, 2, 3, 4, 2, 3, 4, 2, 3, 0, 2, 3, 4, 5, 3, 4, 5, 6, 4, 5, 6, 2, 3, 1, 2, 3, 4, 2, 3, 4, 2, 3, 4, 2, 3, 0, 2, 3, 4, 5, 3 ]
[ "nonn", "look" ]
A034703
[ 9, 14, 20, 25, 27, 35, 41, 44, 45, 54, 63, 65, 77, 90, 92, 104, 119, 126, 129, 134, 135, 140, 152, 170, 175, 189, 198, 209, 219, 230, 231, 246, 252, 261, 275, 298, 299, 300, 324, 340, 350, 377, 405, 417, 434, 440, 450, 464, 465, 469, 472, 495, 506, 527, 560 ]
[ "nonn" ]
A367470
[ 1, 4, 28, 268, 3244, 47404, 810988, 15891628, 350851564, 8615761324, 232911898348, 6872755977388, 219799913877484, 7572909749244844, 279630706025296100, 11016315458773540000, 461211305514352050000, 2.0448268640012928e+22 ]
[ "nonn" ]
A260642
[ 3, 7, 127, 511, 4095, 8191, 131071, 8388607, 33554431, 67108863, 2147483647, 8589934591, 137438953471, 2199023255551, 17592186044415, 35184372088831, 70368744177663, 281474976710655, 562949953421311, 36028797018963970, 72057594037927940 ]
[ "nonn" ]
A253019
[ 37, 50, 83, 91, 133, 223, 243, 357, 595, 653, 959, 1589, 1761, 2583, 4253, 4765, 6979, 11413, 12939, 18921, 30715, 35267, 51485, 82919, 96507, 140637, 224603, 265189, 385735, 610573, 731865, 1062495, 1666165, 2028821, 2939531, 4565069, 5649843 ]
[ "nonn" ]
A265587
[ 2, 1354, 927797, 505822314, 807767184602, 938564405271330, 1227457797882040600, 1.4144596276980836e+21, 2.816459153372415e+24, 4.7973781783355535e+27, 9.197263173294759e+30 ]
[ "nonn" ]
A240481
[ 16, 264, 2753, 29084, 306749, 3229199, 33986995, 357678069, 3764378216, 39618451066, 416967572821, 4388410582280, 46186206308887, 486090724065878, 5115903842989972, 53842772071906540, 566672906942431900 ]
[ "nonn" ]
A146733
[ 1, 1, 1, 1, 1, 7, 21, 51, 221, 1241, 9517, 82699, 831417, 10562039, 171512909, 3474881423, 89012624955, 2811600551097, 108083175359051, 5158385898284233, 309138121525742900 ]
[ "nonn" ]
A310379
[ 1, 4, 10, 14, 18, 24, 30, 34, 38, 44, 48, 52, 58, 62, 66, 72, 78, 82, 86, 92, 96, 100, 106, 110, 114, 120, 126, 130, 134, 140, 144, 148, 154, 158, 162, 168, 174, 178, 182, 188, 192, 196, 202, 206, 210, 216, 222, 226, 230, 236 ]
[ "nonn" ]
A116901
[ 0, 0, 1, 2, 4, 5, 8, 12, 18, 25, 35, 47, 66, 87, 118, 155, 207, 264, 348, 443, 571, 725, 923, 1155, 1466, 1821, 2275, 2821, 3501, 4293, 5307, 6477, 7933, 9658, 11750, 14198, 17251, 20746, 24986, 30009, 36024, 42983, 51446, 61176, 72839, 86497, 102538 ]
[ "nonn" ]