id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A361843
[ 1, 3, 15, 90, 585, 3969, 27657, 196290, 1411965, 10261485, 75183147, 554480316, 4111617510, 30628393110, 229048769790, 1718666596692, 12933847045701, 97584913269675, 737953856289675, 5591915004100950, 42450848142844990, 322796964495941250 ]
[ "nonn" ]
A094464
[ 7, 17, 2, 5, 149, 263, 389, 11, 449, 821, 1091, 881, 1913, 23, 2729, 29, 2531, 6599, 2591, 6971, 3989, 41, 4583, 5189, 7019, 7673, 53, 13679, 7853, 8699, 12641, 9521, 13691, 12143, 19403, 13109, 22901, 83, 18251, 89, 20543, 32183, 23063, 26693 ]
[ "nonn" ]
A161126
[ 1, 1, 1, 1, 2, 1, 1, 4, 4, 1, 1, 6, 12, 6, 1, 1, 9, 28, 28, 9, 1, 1, 12, 57, 92, 57, 12, 1, 1, 16, 105, 260, 260, 105, 16, 1, 1, 20, 179, 630, 960, 630, 179, 20, 1, 1, 25, 289, 1397, 3036, 3036, 1397, 289, 25, 1, 1, 30, 444, 2836, 8471, 12132, 8471, 2836, 444, 30, 1, 1, 36 ]
[ "nonn", "tabl", "changed" ]
A030533
[ 1, 1, 5, 6, 15, 19, 35, 44, 69, 85, 121, 146, 195, 231, 295, 344, 425, 489, 589, 670, 791, 891, 1035, 1156, 1325, 1469, 1665, 1834, 2059, 2255, 2511, 2736, 3025, 3281, 3605, 3894, 4255, 4579, 4979, 5340, 5781, 6181, 6665, 7106, 7635 ]
[ "nonn", "easy" ]
A110023
[ 1, 1, 1, 2, 2, 2, 2, 6, 6, 2, 3, 8, 24, 8, 3, 4, 15, 40, 40, 15, 4, 5, 24, 90, 80, 90, 24, 5, 7, 35, 168, 210, 210, 168, 35, 7, 9, 56, 280, 448, 630, 448, 280, 56, 9, 12, 81, 504, 840, 1512, 1512, 840, 504, 81, 12, 16, 120, 810, 1680, 3150, 4032, 3150, 1680, 810, 120, 16 ]
[ "nonn", "tabl" ]
A308244
[ 1, -1, 1, 2, -4, 1, -3, 11, -7, 1, 5, -26, 29, -10, 1, -8, 56, -94, 56, -13, 1, 13, -114, 263, -234, 92, -16, 1, -21, 223, -667, 815, -473, 137, -19, 1, 34, -424, 1577, -2504, 1982, -838, 191, -22, 1, -55, 789, -3538, 7018, -7191, 4115, -1356, 254, -25, 1, 89, -1444, 7622, -18336, 23431, -17266 ]
[ "sign", "tabl" ]
A093890
[ 0, 2, 1, 4, 1, 5, 1, 6, 2, 7, 1, 9, 1, 5, 4, 11, 1, 12, 1, 13, 5, 5, 1, 17, 2, 5, 4, 16, 1, 20, 1, 18, 4, 6, 6, 24, 1, 5, 5, 24, 1, 24, 1, 18, 11, 5, 1, 30, 1, 15, 3, 18, 1, 30, 6, 30, 5, 7, 1, 39, 1, 3, 18, 31, 6, 34, 1, 16, 3, 34, 1, 44, 1, 4, 13, 16, 4, 39, 1, 42, 5, 5, 1, 48, 5, 5, 2, 41, 1, 51, 2 ]
[ "nonn" ]
A292437
[ 1, 2, 13, 120, 1288, 15046, 185658, 2380720, 31411376, 423660504, 5814905977, 80956085304, 1140478875656, 16227516683124, 232870988052180, 3366482778363616, 48981220255732960, 716707681487535100, 10539913681632290000, 155697664218428440000, 2.3092979992969263e+21 ]
[ "nonn", "walk" ]
A249783
[ 0, 1, 1, 1, 2, 1, 2, 3, 1, 3, 2, 3, 4, 1, 4, 3, 2, 5, 3, 5, 4, 1, 6, 4, 3, 5, 2, 7, 5, 3, 6, 5, 4, 6, 1, 7, 6, 4, 7, 3, 5, 7, 2, 8, 7, 5, 8, 3, 6, 8, 5, 9, 4, 6, 9, 1, 7, 9, 6, 10, 4, 7, 10, 3, 8, 5, 7, 11, 2, 8, 11, 7, 9, 5, 8, 12, 3, 9, 6, 8, 10, 5, 9, 13, 4, 10, 6, 9, 11, 1, 10, 7, 9, 11, 6, 10, 12, 4, 11, 7, 10 ]
[ "nonn", "look", "nice" ]
A101359
[ 0, 2, 4, 7, 10, 12, 18, 25, 30, 36, 48, 54, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 80, 86 ]
[ "nonn" ]
A115401
[ 5, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 40, 42, 46, 50, 54, 58, 60, 62, 64, 68, 78, 84, 112, 116, 118, 120, 126, 128, 142, 152, 170, 178, 184, 192, 194, 198, 208, 210, 216, 220, 222, 252, 258, 270, 300, 318, 336, 348, 354, 370, 408 ]
[ "easy", "nonn" ]
A338106
[ 4, 2, 3, 0, 3, 5, 5, 2, 5, 7, 6, 1, 3, 1, 3, 1, 5, 9, 7, 4, 2, 0, 9, 7, 1, 0, 1, 6, 3, 9, 1, 0, 3, 8, 6, 2, 8, 9, 9, 5, 4, 6, 4, 9, 7, 0, 7, 0, 2, 9, 1, 0, 7, 8, 9, 3, 5, 7, 5, 2, 3, 2, 5, 1, 6, 5, 5, 0, 4, 5, 9, 1, 2, 7, 0, 4, 5, 5, 3, 5, 4, 8, 0, 2, 4, 8, 1, 2 ]
[ "nonn", "cons" ]
A239143
[ 0, 0, 0, 1, 1, 2, 3, 5, 5, 9, 10, 13, 16, 21, 24, 31, 36, 44, 52, 63, 73, 88, 102, 120, 140, 164, 189, 221, 254, 294, 338, 389, 445, 511, 583, 666, 758, 863, 979, 1112, 1258, 1424, 1608, 1815, 2045, 2303, 2588, 2908, 3262, 3657, 4094, 4581, 5118, 5716, 6376 ]
[ "nonn", "easy" ]
A289983
[ 211, 6529, 387420457, 10460353171, 8.343851683310805e+32, 1.197251518256202e+40, 2.2853204413759918e+86 ]
[ "nonn" ]
A379906
[ 2, 2, 5, 307, 807, 72943, 795807, 1295807, 16295807, 166295807, 16666295807, 31666295807, 81666295807, 8581666295807, 26581907922943, 503581666295807, 2003581666295807, 90476581907922940, 140476581907922940, 6847003581666296000, 61847003581666296000, 911847003581666300000 ]
[ "nonn", "base", "hard" ]
A176129
[ 1, 1, 0, 1, 2, 0, 1, 6, 16, 0, 1, 12, 174, 192, 0, 1, 20, 690, 7020, 2816, 0, 1, 30, 1876, 52808, 325590, 46592, 0, 1, 42, 4140, 229680, 4558410, 16290708, 835584, 0, 1, 56, 7986, 738192, 31497284, 420421056, 854630476, 15876096, 0 ]
[ "nonn", "tabl" ]
A183680
[ 344, 2080, 2080, 13448, 10088, 13448, 90784, 54496, 54496, 90784, 631784, 316232, 252920, 316232, 631784, 4497760, 1931680, 1287136, 1287136, 1931680, 4497760, 32592008, 12267368, 7003928, 5836328, 7003928, 12267368, 32592008, 239551264 ]
[ "nonn", "tabl" ]
A053255
[ 1, -1, 0, 1, 0, -1, 1, -1, 0, 1, -1, 0, 2, -1, -1, 1, -1, -1, 2, -1, 0, 2, -1, -1, 2, -2, -1, 3, -2, -1, 3, -2, -1, 3, -2, -1, 4, -3, -1, 4, -2, -2, 4, -3, -2, 5, -4, -2, 6, -3, -2, 6, -4, -2, 7, -5, -2, 7, -5, -3, 8, -6, -3, 9, -6, -3, 10, -6, -4, 10, -7, -4, 12, -8, -4, 13, -8, -5, 13, -9, -5, 15, -10, -5, 16, -11, -6, 17, -12, -7, 19, -13, -6, 21, -13 ]
[ "sign", "easy" ]
A171821
[ 2, 3, 5, 7, 11, 13, 17, 19, 29, 31, 41, 43, 59, 61, 71, 73, 101, 103, 107, 109, 137, 139, 149, 151, 179, 181, 191, 193, 197, 199, 227, 229, 239, 241, 269, 271, 281, 283, 311, 313, 347, 349, 419, 421, 431, 433, 461, 463, 521, 523, 569, 571, 599, 601, 617, 619, 641 ]
[ "nonn", "less" ]
A265008
[ 1, 3, 3, 6, 5, 9, 5, 10, 8, 9, 9, 18, 13, 15, 7, 15, 12, 12, 13, 18, 11, 17, 13, 30, 23, 21, 17, 30, 21, 21, 9, 21, 17, 16, 16, 18, 16, 21, 17, 30, 22, 15, 17, 32, 21, 25, 19, 45, 34, 33, 27, 36, 25, 25, 25, 50, 37, 33, 27, 42, 33, 27, 11, 28, 23, 21, 21, 22, 20, 24, 20, 30, 20, 24, 23, 33, 27, 29, 21, 45, 34, 30, 29, 30, 17, 29, 25, 52, 40, 33, 25, 46, 31 ]
[ "nonn", "base" ]
A195522
[ 1, 1, 1, 1, 1, 3, 1, 1, 5, 15, 1, 1, 7, 65, 199, 1, 1, 9, 175, 3753, 6247, 1, 1, 11, 369, 27267, 860017, 505623, 1, 1, 13, 671, 121367, 23663523, 839301197, 105997283, 1, 1, 15, 1105, 401565, 286168923, 122092290831, 3535646416019, 58923059879, 1, 1, 17 ]
[ "nonn", "tabl" ]
A197964
[ 1, 1, 4, 26, 138, 1523, 26489, 687930, 27990897, 1765820801, 172024403235, 25959739501756 ]
[ "nonn" ]
A244278
[ 1, 1, 3, 8, 25, 87, 323, 1213, 4616, 18122, 73034, 296118, 1201985, 4944712, 20699593, 87039567, 364582540, 1536503788, 6577636822, 28301509234, 120717294622, 515067346615, 2238588931727, 9820016463003, 42372035446400, 181068476007679, 795531553724263, 3577424216585403 ]
[ "nonn" ]
A128538
[ 0, 1, 1, 2, 1, 2, 2, 2, 1, 2, 1, 1, 2, 2, 3, 1, 2, 1, 3, 1, 2, 2, 3, 3, 2, 2, 1, 2, 2, 4, 2, 1, 2, 1, 2, 3, 4, 1, 3, 2, 2, 1, 2, 1, 3, 2, 2, 1, 2, 3, 2, 3, 1, 3, 2, 4, 2, 1, 2, 2, 2, 1, 2, 1, 3, 2, 1, 3, 2, 2, 3, 1, 2, 1, 2, 3, 1, 2, 1, 3, 3, 3, 1, 2, 4, 2, 2, 2, 2, 2, 2, 1, 2, 2, 1, 2, 2, 2, 1, 1, 3, 1, 4, 1, 3 ]
[ "easy", "nonn" ]
A360901
[ 1, 1, 1, 1, 1, -1, -4, -8, -13, -16, -3, 39, 126, 273, 411, 283, -619, -3149, -8201, -14496, -14368, 12984, 109920, 329552, 655436, 785583, -312525, -5009034, -16789151, -36433571, -48990090, 6965306, 286109557, 1044072824, 2414264953, 3490255449, -41486331 ]
[ "sign" ]
A320589
[ 1, -1, 4, -13, 36, -88, 197, -421, 895, -1946, 4346, -9832, 22140, -49043, 106389, -226213, 473366, -980413, 2022418, -4179198, 8687753, -18201140, 38398455, -81343408, 172383461, -364158198, 764854519, -1595107695, 3302884966, -6796646603, 13921482698, -28437025029, 58034908034 ]
[ "sign" ]
A047355
[ 0, 3, 7, 10, 14, 17, 21, 24, 28, 31, 35, 38, 42, 45, 49, 52, 56, 59, 63, 66, 70, 73, 77, 80, 84, 87, 91, 94, 98, 101, 105, 108, 112, 115, 119, 122, 126, 129, 133, 136, 140, 143, 147, 150, 154, 157, 161, 164, 168, 171, 175, 178, 182, 185, 189, 192, 196, 199, 203 ]
[ "nonn", "easy" ]
A181171
[ 1, 6, 3, 6, 6, 2, 6, 2, 0, 7, 7, 8, 0, 9, 2, 3, 7, 7, 0, 6, 6, 3, 9, 2, 3, 4, 8, 9, 7, 2, 1, 8, 3, 5, 0, 2, 1, 8, 2, 4, 4, 1, 7, 1, 6, 0, 2, 9, 9, 4, 1, 7, 0, 8, 6, 8, 5, 8, 7, 4, 2, 6, 0, 0, 5, 8, 9, 0, 2, 0, 9, 6, 4, 6, 0, 3, 9, 5, 8, 5, 9, 7, 3, 6, 5, 1, 9, 7, 1, 8, 1, 0, 6, 0, 0, 8, 7, 6, 2, 0, 3, 9, 1, 5, 0 ]
[ "nonn", "cons" ]
A218997
[ 4, 46, 328, 2374, 17776, 131548, 973492, 7213582, 53429692, 395740366, 2931304708, 21712231084, 160822807612, 1191219388318, 8823392421952, 65355090312238, 484086844724824, 3585643697043796, 26558954938197124, 196722861904335360 ]
[ "nonn" ]
A123561
[ 1, 3, 3, 1, 3, 1, 2, 1, 2, 1, 4, 2, 35, 21, 1, 4, 4, 1, 1, 3, 2, 17, 7, 4, 1, 3, 16, 5, 3, 2, 3, 1, 4, 8, 1, 1, 19578, 1, 1, 1, 1, 1, 8, 1, 2, 1, 1, 3, 2, 1, 1, 1, 2, 1, 1, 9, 1, 1, 1, 2, 14, 4, 19, 1, 3, 3, 5, 9, 1, 3, 1, 6, 1, 2, 1, 11, 1, 1, 5, 23, 1, 4, 2, 3, 1, 35, 2, 1, 5, 3, 1, 9, 4, 8, 3, 1, 6, 2, 1 ]
[ "cofr", "nonn" ]
A141289
[ 1, 1, 2, 1, 1, 2, 3, 1, 2, 1, 1, 2, 3, 4, 1, 1, 2, 3, 1, 2, 1, 1, 2, 3, 4, 5, 1, 2, 1, 1, 2, 3, 4, 1, 1, 2, 3, 1, 2, 1, 1, 2, 3, 4, 5, 6, 1, 1, 2, 3, 1, 2, 1, 1, 2, 3, 4, 5, 1, 2, 1, 1, 2, 3, 4, 1, 1, 2, 3, 1, 2, 1, 1, 2, 3, 4, 5, 6, 7 ]
[ "nonn", "tabf" ]
A203807
[ 1, 1, 1094, 6555, 809765, 10676072, 570282082, 11680775298, 427757608420, 10880625876510, 341910837405634, 9500984180929624, 282684350289144640, 8100555748749978000, 236841648715969300000, 6.851665210550904e+21, 1.9930515021006294e+23 ]
[ "nonn" ]
A228930
[ 1, -4, 8, 67, 266, 9757, 47748, -97258, -251115, 671488, -4724169, -28356343, 125269419, -498668029, -5426804695, 15313259790, -40462770156, 105160602326, -4412226092528, -350847041434052, -54342998565206184 ]
[ "sign", "cofr" ]
A314818
[ 1, 5, 9, 14, 17, 24, 28, 34, 38, 43, 47, 49, 56, 59, 67, 71, 77, 80, 82, 90, 91, 99, 102, 110, 113, 115, 124, 124, 133, 134, 142, 144, 147, 158, 157, 167, 167, 176, 176, 178, 190, 189, 201, 200, 210, 209, 211, 223, 220, 233 ]
[ "nonn" ]
A254477
[ 2696, 11293, 50454, 170900, 603895, 1990286, 6557179, 20990158, 66511881, 206889218, 638407700, 1953110307, 5950273442, 18061423893, 54710654569, 165447019004, 499781356823, 1508449839592, 4550294119859, 13720340793246 ]
[ "nonn" ]
A332090
[ 1, 16, 112249, 3.6192508500267906e+22 ]
[ "nonn", "base" ]
A053322
[ 270, 30, 12, 48, 30, 12, 192, 18, 18, 24, 18, 150, 18, 54, 126, 54, 30, 180, 66, 84, 36, 12, 162, 90, 156, 24, 150, 60, 30, 30, 186, 72, 78, 54, 36, 42, 102, 36, 30, 102, 30, 168, 12, 228, 42, 132, 78, 18, 162, 408, 60, 234, 168, 192, 108, 120, 18, 210, 174, 120, 90 ]
[ "nonn" ]
A143511
[ 33817088, 67634176, 101451264, 135268352, 169085440, 202902528, 236719616, 270536704, 8589934592 ]
[ "more", "nonn" ]
A342461
[ 1, 1, 1, 1, 1, 1, 2, 2, 1, 1, 1, 1, 2, 2, 2, 2, 1, 1, 1, 1, 2, 2, 2, 2, 3, 2, 3, 2, 3, 2, 3, 2, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 3, 2, 3, 2, 3, 2, 3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 2, 5, 4, 3, 2, 1, 1, 1, 1, 2, 1, 2, 1, 2, 2, 2, 2, 3, 2, 3, 2, 3, 3, 3, 2, 4, 3, 3, 2, 4, 3, 4, 3, 4, 3, 4, 2, 3, 4, 4, 3, 4, 3, 4, 3, 3, 4 ]
[ "nonn" ]
A351667
[ 887, 2287, 2311, 2383, 2939, 3583, 3659, 3823, 4451, 4519, 5051, 5743, 6947, 7207, 7643, 7687, 8863, 8963, 9323, 12323, 13763, 13883, 14387, 15139, 15227, 15443, 15467, 15859, 16427, 17491, 20483, 20507, 22051, 23059, 23251, 24859, 25523, 28403, 29587, 29723 ]
[ "nonn", "fini", "full" ]
A207782
[ 13, 169, 611, 2173, 6766, 22322, 75557, 246840, 813373, 2700122, 8903029, 29382065, 97138711, 320761206, 1059193011, 3498970917, 11556218541, 38166121069, 126060198626, 416354317573, 1375125698303, 4541820382522, 15000835767813 ]
[ "nonn" ]
A037861
[ 1, -1, 0, -2, 1, -1, -1, -3, 2, 0, 0, -2, 0, -2, -2, -4, 3, 1, 1, -1, 1, -1, -1, -3, 1, -1, -1, -3, -1, -3, -3, -5, 4, 2, 2, 0, 2, 0, 0, -2, 2, 0, 0, -2, 0, -2, -2, -4, 2, 0, 0, -2, 0, -2, -2, -4, 0, -2, -2, -4, -2, -4, -4, -6, 5, 3, 3, 1, 3, 1, 1, -1, 3 ]
[ "base", "sign", "look", "easy" ]
A158562
[ 240, 1008, 2288, 4080, 6384, 9200, 12528, 16368, 20720, 25584, 30960, 36848, 43248, 50160, 57584, 65520, 73968, 82928, 92400, 102384, 112880, 123888, 135408, 147440, 159984, 173040, 186608, 200688, 215280, 230384, 246000, 262128, 278768, 295920, 313584, 331760 ]
[ "nonn", "easy" ]
A149507
[ 1, 1, 5, 11, 47, 155, 567, 2221, 8173, 32497, 128021, 500621, 2045881, 8159033, 33233365, 136610895, 556058415, 2309390411, 9545735783, 39570216519, 165775628203, 690570644667, 2900036643435, 12206706417779, 51300646746555, 217150025395355, 917877590444083, 3888524712012907 ]
[ "nonn", "walk" ]
A000526
[ 125, 1296, 8716, 47787, 232154, 1040014, 4395772, 17781210, 69498964, 264248924, 982218072, 3582421612, 12857819052, 45515994861, 159205157535, 551049504784, 1889714853263, 6427147635062, 21698583468717 ]
[ "nonn" ]
A142079
[ 109, 179, 389, 599, 739, 809, 1019, 1229, 1439, 1579, 1789, 1999, 2069, 2699, 2909, 3049, 3119, 3259, 3329, 3469, 3539, 3889, 4099, 4519, 4729, 4799, 5009, 5569, 5639, 5779, 5849, 6199, 6269, 6619, 6689, 6829, 6899, 7039, 7109, 7459, 7529, 7669, 7879, 7949 ]
[ "nonn", "easy" ]
A122847
[ 0, 1, 1, 3, 3, 9, 14, 31, 43, 69, 76, 118, 141, 206, 235, 280, 331, 440, 493, 637, 704, 829, 926, 1152, 1247, 1470, 1613, 1841, 1996, 2375, 2494, 2932, 3144, 3428, 3656, 4032, 4216, 4824, 5122, 5544, 5820, 6582, 6802, 7647, 8000, 8451, 8870, 9850, 10159 ]
[ "nonn" ]
A177088
[ 5, 7, 9, 11, 13, 14, 17, 19, 20, 26, 27, 29, 31, 34, 40, 41, 42, 43, 49, 50, 51, 53, 54, 56, 61, 62, 63, 64, 66, 68, 71, 72, 74, 76, 88, 89, 92, 95, 97, 105, 107, 108, 109, 110, 113, 115, 116, 117, 119, 125, 127, 128, 130, 133, 134, 135, 136, 138, 139, 142, 144, 145 ]
[ "nonn", "easy", "less" ]
A246041
[ 6, 9, 4, 8, 1, 9, 3, 0, 0, 8, 6, 6, 7, 3, 0, 5, 3, 6, 2, 6, 7, 1, 9, 2, 7, 5, 0, 6, 2, 0, 3, 5, 2, 5, 1, 2, 7, 7, 0, 2, 1, 1, 6, 9, 6, 8, 6, 7, 2, 4, 4, 1, 5, 2, 8, 8, 9, 4, 4, 2, 3, 3, 8, 9, 0, 2, 6, 6, 9, 5, 9, 2, 3, 9, 8, 3, 0, 6, 5, 4, 5, 6, 1, 0, 6, 6, 5, 9, 6, 4, 6, 1, 4, 3, 9, 8, 0, 3, 3, 9, 9, 6, 6, 2, 4, 3 ]
[ "nonn", "cons" ]
A082612
[ 3, 4, 5, 10, 15, 25, 170, 205, 570, 715, 780, 950, 1095, 1315, 1420, 1615, 2055, 2380, 2405, 2730, 2925, 3755, 3850, 4120, 4300, 4615, 4795, 5015, 5055, 5475, 5850, 6360, 6460, 6785, 6800, 6970, 7100, 7240, 7855, 8115, 8175, 8720, 9425, 9475, 9630, 10150 ]
[ "nonn" ]
A032454
[ 1, 7, 17, 23, 29, 31, 41, 261, 353, 437, 447, 591, 649, 677, 1253, 1301, 2449, 9313, 11749, 16661, 25173, 32887, 38761, 67973, 79557, 149423, 173833, 298679, 336951, 684887, 1199689, 2357111, 2602213, 4687127 ]
[ "nonn", "hard", "more" ]
A132937
[ 23, 2337, 233747, 23374753, 2337475367, 233747536779, 23374753677983, 2337475367798389, 233747536779839000, 233747536779839000000, 2.33747536779839e+23, 2.33747536779839e+26 ]
[ "easy", "nonn", "base" ]
A120630
[ 1, -1, 0, 0, -2, 0, 0, 0, -1, 2, 0, 0, -2, 0, 0, 0, -2, 1, 0, 0, 0, 0, 0, 0, 1, 2, 0, 0, -2, 0, 0, 0, 0, 2, 0, 0, -2, 0, 0, 0, -2, 0, 0, 0, 2, 0, 0, 0, -1, -1, 0, 0, -2, 0, 0, 0, 0, 2, 0, 0, -2, 0, 0, 0, 4, 0, 0, 0, 0, 0, 0, 0, -2, 2, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 4, 0, 0, 0, -2, -2, 0, 0, 0, 0, 0, 0, -2, 1, 0, 0, -2, 0, 0, 0, 0, 2, 0, 0, -2, 0, 0, 0, -2, 0, 0, 0, 2, 0, 0 ]
[ "mult", "easy", "sign" ]
A056578
[ 1, 10, 49, 142, 313, 586, 985, 1534, 2257, 3178, 4321, 5710, 7369, 9322, 11593, 14206, 17185, 20554, 24337, 28558, 33241, 38410, 44089, 50302, 57073, 64426, 72385, 80974, 90217, 100138, 110761, 122110, 134209, 147082, 160753, 175246, 190585, 206794, 223897, 241918 ]
[ "easy", "nonn" ]
A220240
[ 4, 78, 1131, 14976, 219617, 3101079, 43677639, 613533257 ]
[ "nonn" ]
A287137
[ 1, 10, 11, 1110, 11, 111110, 1111, 11111000, 1111, 1111111010, 0, 111111111000, 1111, 11111111100010, 11001101, 1111111110010100, 11000000, 111111111111100000, 11111, 11111111111111100000, 11101, 1.1111111111111011e+21, 0, 1.1111111111111111e+23 ]
[ "nonn", "easy" ]
A111996
[ 1, 8, 52, 312, 1802, 10200, 57092, 317544, 1760035, 9738160, 53844184, 297717712, 1646893140, 9116815952, 50514367512, 280173703472, 1555632093093, 8647009926904, 48117998453036, 268057662257096, 1494927614877214 ]
[ "nonn", "easy" ]
A128807
[ 1, 2, 1, 1, 2, 1, 3, 4, 3, 1, 1, 4, 6, 4, 1, 2, 7, 11, 10, 5, 1, 1, 6, 15, 20, 15, 6, 1, 4, 11, 24, 36, 35, 21, 7, 1, 1, 8, 28, 56, 70, 56, 28, 8, 1, 2, 13, 42, 88, 127, 126, 84, 36, 9, 1 ]
[ "nonn", "tabl" ]
A243731
[ 1, 2, 3, 4, 5, 1, 6, 3, 2, 7, 5, 5, 3, 8, 7, 8, 7, 4, 9, 9, 11, 11, 9, 5, 1, 10, 11, 14, 15, 14, 11, 4, 6, 3, 2, 11, 13, 17, 19, 19, 17, 7, 13, 8, 7, 7, 5, 5, 3, 12, 15, 20, 23, 24, 23, 10, 20, 13, 12, 15, 12, 13, 10, 8, 7, 8, 7, 4, 13, 17, 23, 27, 29, 29 ]
[ "nonn", "easy", "tabf", "frac" ]
A277585
[ 1, 3, 15, 21, 315, 3465, 45045, 15015, 765765, 14549535, 14549535, 25741485, 1673196525, 1003917915, 145568097675, 265447707525, 1504203675975, 4512611027925, 166966608033225, 33393321606645, 1369126185872445, 58872425992515140, 294362129962575700 ]
[ "nonn", "frac" ]
A280586
[ 1, 0, 0, 0, 1, 0, 0, 0, 2, 1, 0, 0, 2, 1, 0, 0, 4, 2, 1, 0, 4, 2, 1, 0, 6, 5, 2, 2, 6, 5, 2, 2, 10, 8, 5, 4, 12, 8, 5, 4, 16, 14, 8, 9, 18, 16, 8, 9, 24, 23, 15, 14, 30, 25, 18, 14, 36, 36, 26, 25, 42, 42, 29, 28, 52, 54, 42, 40, 65, 60, 50, 43, 78, 78, 65, 63, 93, 92, 73, 72, 110, 117, 96, 94, 135, 133, 114, 103, 158, 166, 145 ]
[ "nonn" ]
A238654
[ 1, 2, 2, 3, 8, 3, 5, 18, 18, 5, 8, 50, 51, 50, 8, 13, 128, 189, 189, 128, 13, 21, 338, 630, 1015, 630, 338, 21, 34, 882, 2187, 4742, 4742, 2187, 882, 34, 55, 2312, 7473, 23373, 30116, 23373, 7473, 2312, 55, 89, 6050, 25692, 112827, 204216, 204216, 112827 ]
[ "nonn", "tabl" ]
A087928
[ 64, 57477120, 1323082429842432, 1.378136511524623e+23, 4.999232543373484e+31 ]
[ "nonn" ]
A357018
[ 0, 1, 2, 4, 5, 6, 7, 8, 10, 14, 18, 19, 20, 23, 24, 27, 28, 30, 33, 34, 35, 36, 47, 48, 49, 52, 55, 59, 60, 62, 63, 65, 67, 70, 71, 73, 79, 80, 81, 86, 87, 104, 106 ]
[ "nonn", "more" ]
A189894
[ 4, 50, 208, 582, 1308, 2556, 4528, 7460, 11620, 17310, 24864, 34650, 47068, 62552, 81568, 104616, 132228, 164970, 203440, 248270, 300124, 359700, 427728, 504972, 592228, 690326, 800128, 922530, 1058460, 1208880, 1374784, 1557200, 1757188 ]
[ "nonn" ]
A088719
[ 129, 2188, 2315, 16385, 16512, 18571, 78126, 78253, 80312, 94509, 279937, 280064, 282123, 296320, 358061, 823544, 823671, 825730, 839927, 901668, 1103479, 2097153, 2097280, 2099339, 2113536, 2175277, 2377088, 2920695 ]
[ "nonn" ]
A161926
[ 991, 104435, 712363, 1932085, 4816631, 2685019, 9180975, 13841797, 27084303, 10089313, 18865937, 72584313, 12235713, 29071365, 59499291, 27454813, 40349105, 18039791, 35811791, 26392813, 62173813, 79465965, 59293917 ]
[ "nonn" ]
A048413
[ 2, 3, 5, 7, 13, 23, 31, 43, 53, 67, 79, 89, 97, 101, 131, 313, 353, 421, 431, 457, 467, 643, 653, 757, 787, 797, 1013, 1021, 1201, 1213, 1231, 1321, 2131, 2357, 2423, 2467, 3121, 3457, 3467, 4201, 4231, 4243, 4357, 4567, 4643, 4657, 4679, 5323, 5431, 5653 ]
[ "nonn", "base" ]
A296399
[ 1, 4, 8, 17, 46, 114, 289, 757, 1964, 5118, 13391, 35008, 91589, 239740, 627506, 1642656, 4300361, 11258087, 29473546, 77162161, 202011991, 528872756, 1384604934, 3624939359, 9490209947, 24845686106, 65046840605, 170294825972 ]
[ "nonn" ]
A222372
[ 1, 1, 1, 4, 5, 14, 17, 75, 95, 411, 519, 2522, 3211, 15919, 20299, 103627, 132515, 683480, 875491, 4554799, 5844093, 30542304, 39239961, 205785953, 264702489, 1391485044, 1791699029, 9436529666, 12161620195, 64150640719, 82742154707 ]
[ "nonn" ]
A095402
[ 0, 2, 3, 2, 5, 5, 7, 2, 3, 7, 2, 5, 4, 9, 8, 2, 8, 5, 10, 7, 10, 4, 5, 5, 5, 6, 3, 9, 11, 10, 4, 2, 5, 10, 12, 5, 10, 12, 7, 7, 5, 12, 7, 4, 8, 7, 11, 5, 7, 7, 11, 6, 8, 5, 7, 9, 13, 13, 14, 10, 7, 6, 10, 2, 9, 7, 13, 10, 8, 14, 8, 5, 10, 12, 8, 12, 9, 9, 16, 7, 3, 7, 11, 12, 13, 9, 14, 4, 17, 10 ]
[ "nonn", "base" ]
A140430
[ 3, 2, 4, 1, 2, 0, 3, 2, 4, 1, 2, 0, 3, 2, 4, 1, 2, 0, 3, 2, 4, 1, 2, 0, 3, 2, 4, 1, 2, 0, 3, 2, 4, 1, 2, 0, 3, 2, 4, 1, 2, 0, 3, 2, 4, 1, 2, 0, 3, 2, 4, 1, 2, 0, 3, 2, 4, 1, 2, 0, 3, 2, 4, 1, 2, 0, 3, 2, 4, 1, 2, 0, 3, 2, 4, 1, 2, 0, 3, 2, 4, 1, 2, 0, 3, 2 ]
[ "nonn", "easy" ]
A369198
[ 1, 2, 6, 30, 241, 2759, 40824, 736342, 15622835, 380668095, 10467815086, 320529284621, 10813165015074, 398413594789777, 15917197015926392, 685312404706694500, 31631317971844130000, 1.558017329350991e+21, 8.1567807853702e+22, 4.522975947689168e+24 ]
[ "nonn" ]
A250674
[ 637948, 16949262, 345255872, 5726252240, 81461365899, 1009432228498, 11161659240791, 111900180498102, 1030597712205895, 8812068752088130, 70559356373093920, 532907016216005440, 3819559062732066300 ]
[ "nonn" ]
A182815
[ 2, 4, 5, 6, 7, 8, 8, 9, 10, 11, 10, 11, 12, 13, 14, 12, 13, 14, 15, 16, 17, 14, 15, 16, 17, 18, 19, 20, 16, 17, 18, 19, 20, 21, 22, 23, 18, 19, 20, 21, 22, 23, 24, 25, 26, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 26 ]
[ "nonn", "easy" ]
A026613
[ 1, 0, 2, 0, 2, 0, 2, 1, 1, 0, 2, 0, 2, 1, 1, 1, 0, 1, 2, 1, 1, 1, 0, 2, 0, 2, 1, 0, 2, 0, 2, 1, 1, 1, 0, 1, 2, 1, 1, 1, 0, 2, 0, 2, 1, 1, 0, 2, 0, 2, 0, 2, 1, 0, 2, 1, 1, 1, 0, 2, 0, 2, 1, 1, 0, 2, 0, 2, 0, 2, 1, 1, 0, 2, 0, 2, 1, 1, 1, 0, 2, 0, 2, 0, 2, 1, 1, 1, 0, 1 ]
[ "nonn" ]
A376984
[ 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 3, 2, 0, 2, 15, 9, 0, 9, 57, 40, 2, 40, 238 ]
[ "nonn", "more" ]
A076357
[ 1, 11, 131, 1511, 17351, 199151, 2285711, 26233621, 301089179, 3455668247, 39661481813, 455203748458, 5224475817304, 59962484179977, 688202919252740, 7898659712736578, 90654694294744400, 1040464318828877700, 11941643035453940000, 137056923342374680000 ]
[ "nonn" ]
A303267
[ 32768, 56953125, 120472576 ]
[ "nonn" ]
A374110
[ 1, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 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, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 1, 0, 0, 0, 0, 0, 0, 1 ]
[ "nonn" ]
A131429
[ 1, 1, 1, 2, 2, 3, 5, 5, 6, 9, 14, 14, 15, 18, 27, 42, 42, 43, 46, 55, 83, 132, 132, 133, 136, 145, 173, 263, 429, 429, 430, 433, 442, 470, 560, 857, 1430, 1430, 1431, 1434, 1443, 1471, 1561, 1858, 2859, 4862, 4862, 4863, 4866, 4875, 4903, 4993, 5290, 6291, 9723 ]
[ "nonn", "tabl" ]
A028230
[ 1, 15, 209, 2911, 40545, 564719, 7865521, 109552575, 1525870529, 21252634831, 296011017105, 4122901604639, 57424611447841, 799821658665135, 11140078609864048, 155161278879431550, 2161117825702177800, 30100488280951054000, 419245718107612600000, 5.839339565225625e+21 ]
[ "nonn", "easy" ]
A061179
[ 1, 14, 105, 594, 2860, 12402, 49963, 190570, 696787, 2463300, 8472280, 28481220, 93914325, 304597382, 973877245, 3075011478, 9602753412, 29695165110, 91026167999, 276833858530, 835933445799, 2507876305416 ]
[ "nonn", "easy" ]
A111707
[ 0, 1, 4, 9, 16, 25, 36, 49, 64, 81, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 0, 3, 6, 9, 12, 15, 18, 21, 24, 27, 0, 4, 8, 12, 16, 20, 24, 28, 32, 36, 0, 5, 10, 15, 20, 25, 30, 35, 40, 45, 0, 6, 12, 18, 24, 30, 36, 42, 48, 54, 0, 7, 14, 21, 28, 35, 42, 49, 56, 63, 0, 8 ]
[ "base", "easy", "nonn" ]
A007806
[ 1, 5, 16, 50, 147, 422, 1210, 3459, 9878, 28189, 80425, 229411, 654311, 1866003, 5321194, 15173321, 43264523, 123357771, 351712022, 1002758190, 2858875748, 8150529454, 23236408366, 66243882238, 188849982251, 538372895393, 1534776215805, 4375251800924 ]
[ "nonn" ]
A150431
[ 1, 2, 7, 24, 98, 381, 1626, 6793, 29484, 128021, 564403, 2500084, 11170691, 50116462, 226143658, 1024155781, 4656130957, 21235409051, 97128731541, 445394455074, 2047219553857, 9429370132204, 43515500709007, 201169480526362, 931494523678825, 4319608455445313, 20058776859173756, 93264842819390270 ]
[ "nonn", "walk" ]
A261603
[ 1, 10, 1944, 15858432, 7763310604800, 338060641751949300000, 1.7619522699499784e+30, 1.4557357727884067e+42, 2.4147806461179263e+56, 1.0017186663047807e+73 ]
[ "nonn" ]
A198804
[ 1, 0, 16, 0, 720, 0, 50560, 0, 4649680, 0, 514031616, 0, 64941883776, 0, 9071319628800, 0, 1369263687414480, 0, 219705672931613440, 0, 37024402443528250000, 0, 6.49381417341385e+21, 0, 1.1773048336712183e+24, 0, 2.1945661156947996e+26, 0 ]
[ "nonn" ]
A266905
[ 1, 1, 5, 11, 24, 77, 222, 700, 2297, 6869, 21609, 71873, 232180, 750378, 2467891, 8112639, 26801830, 89117472, 296172168, 986748556, 3302475620, 11072842433, 37184910085, 125141998479, 421837425707, 1424270565702, 4816739871914 ]
[ "nonn" ]
A308575
[ 2, 2946, 4, 18, 830, 86, 342, 498, 36002, 2310, 14660, 3791908, 138060, 160110, 998836, 4345842, 357341648, 56717562, 36609556, 5972021576, 2654687244, 8237027666, 22719286202, 1542163060562, 222365303318 ]
[ "nonn", "base", "more", "hard" ]
A356834
[ 1, 1, 4, 33, 448, 8105, 192576, 5946913, 226097152, 10389920913, 571788928000, 36818407010561, 2741300619657216, 234014330510734980, 22620660476040330000, 2.45746744974257e+21, 2.980618562291128e+23, 4.005872757969321e+25 ]
[ "nonn" ]
A269665
[ 2, 5, 18, 17, 1600, 984, 2888, 460747, 99271723, 792174, 32917926 ]
[ "nonn", "more" ]
A024610
[ 1, 2, 4, 6, 9, 12, 16, 21, 26, 32, 37, 44, 50, 57, 66, 74, 83, 91, 101, 111, 123, 134, 145, 157, 168, 182, 195, 209, 223, 237, 252, 266, 283, 300, 317, 332, 349, 367, 384, 403, 424, 444, 464, 484, 504, 526, 547, 570, 592, 614, 637, 660, 685, 711, 733, 758, 784 ]
[ "nonn", "easy", "changed" ]
A043605
[ 651, 652, 653, 654, 660, 661, 663, 664, 665, 666, 667, 669, 670, 671, 672, 673, 676, 677, 678, 679, 680, 682, 683, 684, 690, 691, 692, 694, 695, 696, 697, 698, 701, 702, 703, 704, 705, 707, 708, 709, 710, 711, 713, 714, 720 ]
[ "nonn", "base" ]
A123487
[ 2, 2, 2, 2, 5, 2, 2, 2, 113, 151, 2, 61, 53, 89, 5, 307, 19, 2, 491, 3, 11, 271, 41, 2, 271, 359, 3, 2, 79, 233, 2, 7, 13, 11, 5, 29, 71, 139, 127, 139, 2003, 5, 743, 673, 593, 383, 653, 661, 251, 6389, 2833, 223, 163, 37, 709, 131, 41, 2203, 941, 2707, 13, 1283, 383 ]
[ "nonn" ]
A219894
[ 1, 4, 9, 55, 453, 4357, 47598, 569769, 7371560, 102525991, 1525164223 ]
[ "nonn", "more" ]
A212770
[ 1, -2, 1, -4, 10, -10, 12, -24, 37, -44, 56, -84, 126, -160, 186, -272, 394, -466, 568, -792, 1052, -1272, 1560, -2040, 2663, -3244, 3877, -4992, 6410, -7644, 9180, -11616, 14472, -17284, 20712, -25572, 31518, -37576, 44510, -54416, 66402, -78368, 92648 ]
[ "sign" ]
A309968
[ 2, 74801040398884800, 224403121196654400, 3066842656354277000, 6133685312708554000, 9200527969062830000, 18401055938125660000, 131874234223233910000, 263748468446467820000, 395622702669701700000, 791245405339403400000, 6.198089008491994e+21, 1.2396178016983988e+22 ]
[ "nonn", "fini" ]
A340471
[ 2, 6, 28, 90, 1488, 945, 182880, 9450, 8241408, 93555, 14856307200, 638512875, 1569400842240, 18243225, 5713142135500800, 325641566250, 1096948397364019200, 38979295480125, 6.713362606110032e+21, 1531329465290625, 4.081730303479719e+23, 13447856940643124 ]
[ "nonn", "frac" ]
A345991
[ 6, 6, 6, 24, 60, 6, 210, 24, 504, 60, 990, 24, 1716, 210, 60, 336, 4080, 504, 5814, 60, 210, 990, 10626, 24, 13800, 1716, 17550, 336, 21924, 60, 26970, 3360, 990, 4080, 210, 504, 46620, 5814, 1716, 120, 63960, 210, 74046, 1320, 720, 10626, 97290, 336, 110544, 13800, 4080, 1716, 140556, 17550, 990 ]
[ "nonn" ]