id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A327115
[ 0, 1, 4, 19, 98, 570, 3642, 25292, 189454, 1519648, 12978141, 117437020, 1121299471, 11256640012, 118443403699, 1302670531063, 14938986954323, 178248001223476, 2208487163394749, 28363722744050890, 376991516806826100, 5178009641895236000, 73396161423153316000 ]
[ "nonn" ]
A155712
[ 7, 28, 31, 49, 63, 73, 79, 97, 100, 103, 112, 124, 127, 151, 175, 193, 196, 199, 217, 223, 241, 252, 271, 279, 292, 313, 316, 337, 343, 367, 388, 400, 409, 412, 433, 439, 441, 448, 457, 463, 484, 487, 496, 508, 511, 553, 567, 577, 601, 604, 607, 631, 657, 673 ]
[ "easy", "nonn" ]
A076360
[ 0, -1, 0, -2, 1, -1, 1, -3, -2, -1, 3, -6, 1, 1, 1, -4, 3, -8, 3, -4, -1, 2, 5, -3, -2, 1, 1, -4, 5, -3, 3, -6, 3, 1, 3, -9, 1, 5, 1, -3, 5, -3, 3, 0, -4, 5, 7, -12, 0, -8, 5, -6, 5, 1, 5, 1, 3, 5, 9, -12, 1, 5, -4, -6, 5, 0, 3, 0, 5, 0, 9, -20, 1, 1, -6, 0, 5, 1, 7, -10, -3, 5, 9, -16, 5, 5, 9, 3, 9, -16, 3, 4, 1, 8, 9, -10, 3, -6, 0, -9, 5, 1, 5, 1, -1 ]
[ "easy", "sign" ]
A087462
[ 1, 1, 1, 8, 5, 11, 64, 43, 85, 512, 341, 683, 4096, 2731, 5461, 32768, 21845, 43691, 262144, 174763, 349525, 2097152, 1398101, 2796203, 16777216, 11184811, 22369621, 134217728, 89478485, 178956971, 1073741824, 715827883, 1431655765, 8589934592, 5726623061 ]
[ "easy", "nonn" ]
A302447
[ 1, 2, 12, 46, 175, 610, 2107, 6918, 22256, 69498, 212649, 636910, 1874470, 5423332, 15457223, 43433088, 120467606, 330077358, 894193347, 2396636236, 6359325300, 16714566278, 43539016461, 112449776138, 288083439729, 732356943548, 1848098069644, 4630892393996 ]
[ "nonn" ]
A085702
[ 4, 27, 30, 70, 84, 286, 308, 440, 528, 594, 646, 728, 884, 945, 1040, 1170, 1248, 1404, 1496, 1748, 1798, 1976, 3125, 3128, 3344, 3526, 3570, 3762, 3808, 4250, 4284, 5100, 5336, 5440, 5445, 5586, 6068, 6120, 6528, 6650, 7198, 7344, 7980, 8084, 8085, 8262 ]
[ "easy", "nonn" ]
A182716
[ 0, 1, 2, 4, 8, 15, 27, 48, 82, 137, 225, 362, 572, 892, 1370, 2078, 3117, 4624, 6791, 9885, 14263, 20416, 29007, 40921, 57345, 79864, 110565, 152211, 208435, 283982, 385048, 519695, 698346, 934477, 1245439, 1653485, 2187108, 2882686, 3786497, 4957324, 6469625 ]
[ "nonn" ]
A183236
[ 1, 1, 17, 1378, 354065, 221300626, 286871431922, 688780254549829, 2821284379712639000, 1.851045009264199e+22, 1.8510466682603052e+26, 2.710117456989715e+30, 5.619699873605871e+34 ]
[ "nonn" ]
A160314
[ 1, 32, -898, -151744, 322060, 1176913792, 34566244744, -12466050017536, -863967857346928, 164031013634531840, 20193908432692180000, -2.506471012209552e+21, -5.0714668447468374e+23, 4.1580553522411236e+25, 1.4002144771001608e+28 ]
[ "sign", "frac" ]
A013200
[ 0, 1, 0, 1, 0, 13, -48, 677, -4480, 54937, -471680, 6248713, -65916928, 988579109, -12514310144, 212756765101, -3159842455552, 60179200959793, -1026648500830208, 21632158018229010, -416691460525064200 ]
[ "sign" ]
A095765
[ 0, 1, 1, 3, 4, 6, 12, 22, 38, 70, 130, 237, 441, 825, 1539, 2897, 5453, 10335, 19556, 37243, 70938, 135555, 259586, 497790, 956126, 1839597, 3544827, 6839282, 13212389, 25552386, 49472951, 95883938, 186011076, 361177503, 701906519 ]
[ "nonn" ]
A390173
[ 4, 48, 3840, 1720320, 19377684480, 1031822943191040, 1.149566322884456e+21, 5.725686368778234e+27, 5.523511925041765e+35, 4.2998486827280694e+45, 1.4312474839300947e+56, 3.639119392489529e+68 ]
[ "nonn" ]
A199151
[ 8, 6, 4, 0, 1, 1, 2, 7, 2, 4, 2, 7, 9, 0, 3, 4, 5, 7, 3, 2, 9, 5, 5, 0, 3, 1, 5, 0, 3, 5, 9, 0, 0, 2, 9, 4, 7, 0, 4, 8, 8, 0, 1, 7, 2, 7, 8, 9, 4, 2, 0, 3, 8, 5, 2, 7, 5, 0, 0, 7, 7, 8, 3, 4, 3, 8, 2, 4, 2, 2, 0, 4, 0, 1, 2, 5, 9, 8, 3, 2, 0, 0, 5, 6, 4, 3, 1, 1, 8, 0, 0, 8, 8, 7, 4, 2, 1, 7, 8 ]
[ "nonn", "cons" ]
A099360
[ 14, 79, 623, 6559, 83519, 1185919, 17850623, 276922879, 4362470399, 69257922559, 1103812890623, 17626570956799, 281749955297279, 4505799053311999, 72075187834650620, 1153062248537784300, 18447869999386460000 ]
[ "nonn", "easy" ]
A209527
[ 1, 2, 2, 5, 6, 5, 15, 57, 57, 15, 52, 700, 2027, 700, 52, 203, 10677, 107693, 107693, 10677, 203, 877, 193676, 7700397, 27323948, 7700397, 193676, 877, 4140, 4054358, 687132348, 9700576474, 9700576474, 687132348, 4054358, 4140, 21146, 95534880 ]
[ "nonn", "tabl" ]
A262184
[ 1, 1, 1, 3, 7, 21, 57, 157, 421, 1123, 2971, 7833, 20593, 54057, 141753, 371491, 973183, 2548813, 6674473, 17476581, 45758461, 119803971, 313661811, 821194993, 2149945057, 5628675601, 14736139057, 38579834307, 101003513911, 264430950213, 692289729561 ]
[ "nonn", "easy" ]
A139295
[ 31, 8191, 2305843009213694000, 1.4474011154664524e+76 ]
[ "nonn" ]
A207289
[ 14124, 199487376, 2270955601878, 26429424077425892, 305856308413400600000, 3.5443700017347206e+24, 4.10645576532055e+28, 4.757951314596832e+32, 5.512751277877233e+36 ]
[ "nonn" ]
A094313
[ 2, 3, 4, 7, 36, 113, 100, 506, 6, 4, 25, 66, 49, 176, 12, 15, 196, 1381, 24, 26, 30, 28, 121, 672, 169, 1106, 225, 1696, 289, 2466, 361, 3440 ]
[ "nonn" ]
A039576
[ 2, 3, 4, 14, 15, 16, 20, 21, 22, 26, 27, 28, 41, 66, 86, 87, 88, 92, 93, 94, 98, 99, 100, 122, 123, 124, 128, 129, 130, 134, 135, 136, 158, 159, 160, 164, 165, 166, 170, 171, 172, 181, 186, 233, 239, 245, 248, 249, 250, 293, 318, 329, 354, 365, 390, 398, 399 ]
[ "nonn", "base", "easy" ]
A134885
[ 1, 137, -1, -135, -137, 1, 134, 0, 137, -1, -133, 0, 0, -137, 1, 132, 0, 0, 0, 137, -1, -131, 0, 0, 0, 0, -137, 1, 130, 0, 0, 0, 0, 0, 137, -1, -129, 0, 0, 0, 0, 0, 0, -137, 1, 128, 0, 0, 0, 0, 0, 0, 0, 137, -1, -127, 0, 0, 0, 0, 0, 0, 0, 0, -137, 1 ]
[ "uned", "tabl", "sign", "less" ]
A343567
[ 1, 6, 33, 292, 3195, 47154, 824467, 16783176, 387434574, 10000082730, 285311855367, 8916101760828, 302875109296409, 11112006847596746, 437893890421433600, 18446744074133996000, 827240261886937800000, 3.934640807530586e+22 ]
[ "nonn" ]
A296703
[ 1, 2, 3, 4, 5, 6, 8, 16, 24, 32, 40, 48, 50, 51, 52, 53, 54, 55, 57, 63, 64, 70, 71, 72, 77, 78, 79, 80, 84, 85, 86, 87, 88, 91, 92, 93, 94, 95, 96, 99, 100, 101, 102, 103, 104, 107, 108, 109, 110, 111, 114, 119, 120, 121, 126, 127, 128, 129, 133, 134, 135 ]
[ "nonn", "easy", "base" ]
A371543
[ 1, 4, 18, 100, 611, 3964, 26796, 186664, 1330541, 9657748, 71138964, 530417668, 3995461515, 30359913132, 232434013174, 1791205897652, 13883372595753, 108159238126644, 846472588860134, 6651825146945508, 52465622957295300, 415208597109815200 ]
[ "nonn" ]
A318914
[ 1, 0, 1, 2, 15, 44, 475, 2274, 33313, 227240, 2920041, 26754650, 469513231, 4613913732, 85842524755, 1174844041994, 24672317426625, 334246510927184, 7985602649948113, 127351500133158450, 3282809137540002000, 60776696924693720000, 1.5563796825615754e+21, 3.256813944209087e+22 ]
[ "nonn" ]
A357002
[ 8, 16, 18, 24, 25, 27 ]
[ "nonn", "more" ]
A368387
[ 1, 1, 3, 3, 35, 35, 35, 35, 35, 154, 462, 462, 231, 462, 231, 462, 924, 462, 462, 7, 924, 1846572, 492573081, 19019, 19019, 5073, 19019, 1804297, 7379372, 492573081, 7379372, 1804297, 19019, 1846572, 19019, 5534529, 7379372, 19019, 492573081, 5534529, 7379372, 19019, 19019, 7379372, 19019, 5534529, 19019, 19019, 14758744, 5534529, 7379372, 19019, 5534529, 44276232, 1844843, 19019 ]
[ "nonn", "frac", "tabf" ]
A386226
[ 1, 4, 10, 16, 27, 34, 44, 54, 69, 76, 86, 96, 111, 118, 128, 138, 153, 160, 170, 180, 195, 202, 212, 222, 237, 244, 254, 264, 279, 286, 296, 306, 321, 328, 338, 348, 363, 370, 380, 390, 405, 412, 422, 432, 447, 454, 464, 474, 489, 496, 506, 516, 531, 538, 548 ]
[ "nonn", "easy" ]
A285552
[ 23, 224, 128, 3712, 896, 512, 1536, 54272, 14848, 11264, 3584, 11776, 2048, 6144, 20480, 833536, 217088, 94208, 59392, 45056, 116736, 22528, 14336, 118784, 47104, 8192, 63488, 24576, 49152, 81920, 294912, 13082624, 3334144, 1564672, 868352, 548864, 376832 ]
[ "nonn" ]
A010936
[ 1, 20, 190, 1140, 4845, 15504, 38760, 77520, 125970, 167960, 184756, 167960, 125970, 77520, 38760, 15504, 4845, 1140, 190, 20, 1 ]
[ "nonn", "fini", "full", "easy" ]
A347535
[ 2, 6, 9, 16, 25, 36, 49, 64, 81, 100, 121, 144, 169, 196, 225, 256, 289, 324, 361, 400, 441, 484, 529, 576, 625, 676, 729, 784, 841, 900, 961, 1024, 1089, 1156, 1225, 1296, 1369, 1444, 1521, 1600, 1681, 1764, 1849, 1936, 2025, 2116, 2209, 2304, 2401, 2500 ]
[ "nonn", "easy" ]
A327961
[ 0, 1, 13, 122, 1028, 8328, 66576, 530464, 4227136, 33718400, 269222144, 2151154176, 17196647424, 137514452992, 1099847176192, 8797569425408, 70375186644992, 562977870741504, 4503719886520320, 36029312415170560, 288232575175229440, 2305852355063054300 ]
[ "nonn", "base", "easy" ]
A377768
[ 1, 27, 241917 ]
[ "nonn", "bref", "more" ]
A164714
[ 10, 21, 36, 42, 54, 73, 85, 136, 170, 204, 219, 238, 273, 292, 341, 438, 528, 585, 682, 792, 819, 924, 990, 1057, 1365, 1755, 1911, 2080, 2184, 2340, 2730, 3120, 3171, 3276, 3510, 3640, 3822, 3900, 4030, 4161, 4369, 4681, 5461, 7399, 8256, 10922, 12384 ]
[ "base", "nonn" ]
A014366
[ 1, -1, 0, 1, -1, 0, 1, 0, -1, 1, 0, -1, 1, 0, 0, 0, 0, 1, -1, 0, 1, -1, 0, 1, 0, -1, 1, 0, -1, 1, 0, 0, 0, 0, 1, -1, 0, 1, -1, 0, 1, 0, -1, 1, 0, -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, 0, 0, 0 ]
[ "sign" ]
A205738
[ 360, 978, 3888, 17532, 80916, 376314, 1756446, 8212662, 38432652, 179925948, 842504430, 3945403368, 18476947170, 86532335682, 405257580870, 1897955537136, 8888775949212, 41629230515718, 194964278279712, 913086294849486 ]
[ "nonn" ]
A010860
[ 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21 ]
[ "nonn", "easy" ]
A339573
[ 0, 1, 2, 4, 6, 8, 11, 14, 17, 21, 25, 29, 34, 39, 44, 50, 56, 62, 69, 76, 83, 91, 99, 107, 116, 125, 134, 144, 154, 164, 175, 186, 197, 209, 221, 233, 246, 259, 272, 286, 300, 314, 329, 344, 359, 375, 391, 407, 424, 441, 458, 476, 494, 512, 531, 550, 569, 589, 609, 629, 650, 671, 692 ]
[ "nonn", "easy" ]
A299423
[ 4, 7, 16, 21, 24, 29, 32, 37, 44, 49, 56, 63, 66, 71, 78, 83, 88, 91, 98, 103, 106, 113, 116, 121, 128, 131, 136, 143, 147, 152, 154, 164, 168, 173, 180, 185, 189, 191, 200, 203, 210, 214, 219, 225, 234, 237, 240, 243, 250, 255, 262, 267, 272, 275, 281, 291 ]
[ "nonn", "easy" ]
A133776
[ 0, 0, 1, 2, 1, 1, 3, 2, 2, 2, 4, 2, 2, 3, 2, 2, 2, 5, 4, 4, 3, 2, 3, 3, 4, 3, 3, 3, 6, 3, 3, 4, 3, 3, 3, 5, 4, 4, 3, 2, 3, 3, 4, 3, 3, 3, 7, 6, 6, 5, 4, 5, 5, 5, 4, 4, 3, 2, 4, 4, 5, 4, 4, 4, 6, 5, 5, 4, 3, 4, 4, 5, 4, 4, 4, 8, 4, 4, 5, 4, 4, 4, 6, 5, 5, 4, 3, 4, 4, 5, 4, 4, 4, 7, 6, 6, 5, 4, 5, 5, 5, 4, 4, 3, 2 ]
[ "nonn" ]
A314943
[ 1, 5, 9, 14, 20, 24, 28, 34, 39, 43, 48, 53, 57, 62, 68, 72, 76, 82, 87, 91, 96, 101, 105, 110, 116, 120, 124, 130, 135, 139, 144, 149, 153, 158, 164, 168, 172, 178, 183, 187, 192, 197, 201, 206, 212, 216, 220, 226, 231, 235 ]
[ "nonn" ]
A080934
[ 1, 1, 0, 1, 1, 0, 1, 1, 1, 0, 1, 1, 2, 1, 0, 1, 1, 2, 4, 1, 0, 1, 1, 2, 5, 8, 1, 0, 1, 1, 2, 5, 13, 16, 1, 0, 1, 1, 2, 5, 14, 34, 32, 1, 0, 1, 1, 2, 5, 14, 41, 89, 64, 1, 0, 1, 1, 2, 5, 14, 42, 122, 233, 128, 1, 0, 1, 1, 2, 5, 14, 42, 131, 365, 610, 256, 1, 0, 1, 1, 2, 5, 14, 42, 132, 417, 1094, 1597, 512, 1, 0 ]
[ "nonn", "tabl" ]
A220991
[ 7, 168, 2899, 48800, 781249, 12552490, 199768074, 3172621401, 50293852540, 796576432352, 12609422542725, 199544688476775, 3157253422434725, 49950371583901020, 790214074604432600 ]
[ "nonn" ]
A334543
[ 6, 12, 18, 30, 24, 36, 42, 54, 48, 60, 84, 66, 78, 72, 126, 90, 102, 108, 114, 96, 120, 150, 138, 162, 132, 144, 168, 246, 156, 180, 186, 240, 204, 192, 216, 198, 210, 174, 258, 252, 222, 234, 228, 318, 282, 264, 276, 342, 306, 294, 312, 270, 354, 372 ]
[ "nonn" ]
A111800
[ 1, 3, 5, 5, 7, 7, 7, 7, 7, 9, 9, 9, 9, 9, 11, 7, 9, 9, 9, 11, 11, 11, 9, 11, 9, 11, 9, 11, 11, 13, 11, 9, 13, 11, 13, 11, 11, 11, 13, 13, 11, 13, 11, 13, 13, 11, 13, 11, 9, 11, 13, 13, 9, 11, 15, 13, 13, 13, 11, 15, 11, 13, 13, 9, 15, 15, 11, 13, 13, 15, 13, 13, 13, 13, 13, 13, 15, 15 ]
[ "nonn" ]
A239525
[ 200, 67, 40, 29, 23, 19, 16, 14, 12, 11, 10, 9, 8, 8, 7, 13, 19, 6, 11, 16, 5, 14, 9, 13, 17, 4, 19, 11, 18, 7, 10, 13, 19, 3, 29, 17, 11, 8, 8, 18, 5, 17, 12, 7, 9, 11, 13, 15, 21, 35, 2, 35, 21, 15, 13, 11, 9, 7, 12, 17, 5, 18, 8, 8, 11, 17, 29, 3, 19, 13, 10, 7, 18, 11, 19, 4, 17, 13, 9, 14, 5, 16, 11, 6, 19, 13, 7, 8, 8, 9, 10, 11, 12, 14, 16, 19, 23, 29, 40, 67, 1 ]
[ "nonn", "base", "easy", "fini", "full" ]
A280657
[ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 19, 20, 29, 30, 39, 40, 49, 50, 59, 60, 69, 70, 79, 80, 89, 90, 99, 100, 109, 118, 127, 136, 145, 154, 163, 172, 181, 190, 199, 200, 209, 218, 227, 236, 245, 254, 263, 272, 281, 290, 299, 300, 309, 318, 327, 336, 345, 354, 363, 372, 381, 390, 399, 400, 409, 418, 427, 436 ]
[ "nonn", "base" ]
A069491
[ 1, 2, 6, 12, 10, 60, 420, 840, 252, 2520, 2310, 27720, 1716, 24024, 360360, 720720, 680680, 12252240, 25194, 503880, 10581480, 232792560, 223092870, 5354228880, 1029659400, 26771144400, 2868336900, 80313433200, 77636318760 ]
[ "nonn" ]
A240031
[ 5, 17, 23, 25, 41, 47, 53, 59, 71, 83, 101, 107, 113, 125, 131, 137, 149, 167, 173, 179, 191, 197, 227, 239, 251, 257, 263, 269, 281, 289, 293, 311, 317, 347, 353, 359, 383, 389, 401, 419, 443, 449, 461, 467, 479, 503, 509, 529, 557, 563, 569, 587, 593 ]
[ "nonn", "easy" ]
A278927
[ 1, 3, 38, 1116, 59392, 5004720, 613252320, 103050420480, 22752244279296, 6388491978086400, 2223423557203968000, 939489529945565400000, 4.7378956326983566e+23, 2.8111235255744777e+26, 1.9385768585960528e+29, 1.5375852908070201e+32 ]
[ "nonn" ]
A340530
[ 1, 3, 1, 5, 3, 1, 1, 8, 5, 3, 3, 1, 1, 1, 10, 8, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 14, 10, 8, 8, 5, 5, 5, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 16, 14, 10, 10, 8, 8, 8, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 20, 16, 14, 14, 10, 10, 10, 8, 8, 8, 8, 8, 5, 5, 5, 5, 5, 5, 5 ]
[ "nonn", "tabf" ]
A241333
[ 187, 165924, 157912026, 151022716125, 144410575985227, 138095118530911730, 132055730959382790000, 1.2628056231279799e+23, 1.2075795921026702e+26, 1.1547687636342632e+29 ]
[ "nonn" ]
A234472
[ 0, 1, 10, 11, 100, 101, 110, 1000, 1001, 1010, 1100, 10000, 10001, 10010, 10100, 11000, 100000, 100001, 100010, 100100, 101000, 110000, 1000000, 1000001, 1000010, 1000100, 1001000, 1010000, 1100000, 10000000, 10000001, 10000010, 10000100, 10001000, 10010000 ]
[ "nonn", "base", "nice" ]
A167255
[ 1, 21, 441, 9157, 214689, 5850115, 158753814, 4292655082 ]
[ "nonn" ]
A185259
[ 1, 1, 12, 8, 1, 72, 528, 704, 180, 1, 324, 8760, 53792, 98124, 56160, 8064, 1, 1344, 103040, 1759520, 9936360, 21676144, 19083456, 6356160, 604800, 1, 5436, 1054056, 41312704, 539233128, 2901894144, 7118351104, 8247838464, 4418632656, 988952832, 68428800, 1, 21816, 10106736, 823376896, 21574613676, 235937470944, 1230387808384, 3281254260864, 4608240745104, 3390175943424, 1247151098880, 204083712000, 10897286400 ]
[ "nonn", "tabf" ]
A137346
[ 1, -2, 1, 4, -5, 1, -8, 20, -9, 1, 16, -78, 59, -14, 1, -32, 324, -360, 135, -20, 1, 64, -1520, 2254, -1165, 265, -27, 1, -128, 8336, -15232, 9954, -3045, 469, -35, 1, 256, -53872, 113868, -88508, 33649, -6888, 770, -44, 1, -512, 405600, -948840, 839684, -376278, 95025, -14028, 1194, -54 ]
[ "tabl", "sign" ]
A323822
[ 11, 29, 13, 14, 23, 17, 32, 67, 37, 34, 27, 33, 38, 24, 25, 53, 76, 48, 44, 47, 35, 54, 66, 56, 46, 45, 55, 65, 57, 36, 63, 69, 73, 78, 28, 62, 87, 39, 43, 49, 15, 52, 86, 75, 58, 26, 72, 88, 74, 68, 64, 84, 77, 83, 79, 18, 22, 92, 101, 191, 596, 460, 100, 102, 96, 213, 98, 210, 103, 131, 383, 174, 235, 305, 97, 310, 104, 221, 169, 117 ]
[ "base", "nonn" ]
A280314
[ 2, 2, 2, -1, 2, 1, 2, -1, -1, 2, 1, 2, 1, -1, -1, 1, 2, 2, -1, 0, 1, -1, 2, 0, 2, 1, 1, -1, -1, 2, 0, 2, 2, 0, 1, 0, 1, 2, -1, 2, 0, -1, -1, -1, 2, 1, 2, 0, -1, 0, 1, 2, -1, 0, 1, 1, 0, 2, -1, -1, 1, 1, 1, -1, -1, 1, -1, 1, 0, 2, 0, 2, 1, -1, -1, 1, 2, -1, 0, -1, 1, -1, 1, -1, -1, 0, 2, 0, 0, 1, 1 ]
[ "sign" ]
A248963
[ 1, 7, 9, 11, 13, 16, 19, 23, 25, 29, 31, 32, 37, 43, 47, 53, 61, 67, 73, 79, 81, 83, 97, 103, 107, 109, 113, 121, 127, 128, 137, 139, 149, 151, 157, 163, 179, 181, 191, 193, 197, 199, 211, 223, 227, 229, 233, 239, 241, 243, 251, 257, 263, 269, 271, 277, 281, 283, 307, 311, 313, 317, 331 ]
[ "nonn" ]
A034935
[ 0, 2, 7, 57, 182, 2057, 14557, 45807, 280182, 6139557, 25670807, 123327057, 5006139557, 11109655182, 102662389557, 407838170807, 3459595983307, 79753541295807, 365855836217682, 2273204469030182, 49956920289342680 ]
[ "nonn", "easy", "nice" ]
A059475
[ 1, 2, 10, 140, 5544, 622908, 198846076, 180473355920, 465904151957920, 3422048076740462600, 7.15257632212879e+22, 4.254840960508487e+27, 7.204287919205586e+32, 3.472305355420924e+38 ]
[ "nonn" ]
A070288
[ 0, 0, 0, 1, 0, 2, 0, 2, 1, 2, 0, 6, 0, 2, 2, 3, 0, 6, 0, 6, 2, 2, 0, 10, 1, 2, 2, 6, 0, 12, 0, 4, 2, 2, 2, 14, 0, 2, 2, 10, 0, 12, 0, 6, 6, 2, 0, 14, 1, 6, 2, 6, 0, 10, 2, 10, 2, 2, 0, 26, 0, 2, 6, 5, 2, 12, 0, 6, 2, 12, 0, 22, 0, 2, 6, 6, 2, 12, 0, 14, 3, 2, 0, 26, 2, 2, 2, 10, 0, 26, 2, 6, 2, 2, 2 ]
[ "easy", "nonn" ]
A364446
[ 1, 2, 17, 205, 3876, 99585, 3313117, 138046940, 6974868139, 419104459913, 29405917751526, 2376498296500063, 218615700758838240, 22667167720595000000, 2.626657814273218e+21, 3.3769241965332936e+23, 4.78594963372877e+25 ]
[ "nonn" ]
A096950
[ 1, 27, 405, 25515, 2066715, 7577955, 2659862205, 71816279535, 3662630256285, 626309773824735, 2415766270466835, 166687872662211620, 7500954269799522000, 1.822731887561284e+21, 5.285922473927724e+22 ]
[ "nonn", "easy", "frac" ]
A350338
[ 0, 1, 1, 2, 1, 3, 1, 3, 2, 3, 1, 5, 1, 3, 3, 3, 1, 5, 1, 5, 3, 3, 1, 6, 2, 3, 3, 5, 1, 7, 1, 3, 3, 3, 3, 7, 1, 3, 3, 6, 1, 7, 1, 5, 5, 3, 1, 6, 2, 5, 3, 5, 1, 6, 3, 6, 3, 3, 1, 10, 1, 3, 5, 3, 3, 7, 1, 5, 3, 7, 1, 8, 1, 3, 5, 5, 3, 7, 1, 6, 3, 3, 1, 10, 3, 3, 3, 6, 1, 10, 3 ]
[ "nonn" ]
A217474
[ -1, 2, -14, 278, -15016, 2172632, -835765304, 851104689248, -2288258540319136, 16212819419809778000, -3.023321351381334e+23, 1.482425980104938e+28, -1.9099229877057726e+33, 6.462106494096327e+38 ]
[ "sign", "easy" ]
A107510
[ 1, 420, 33210, 1045940, 18236130, 208282068, 1727719290, 11158908420, 58971933570, 264526505540, 1035559318266, 3615105424020, 11446772554210, 33324462972660, 90187696858170, 228961922378596, 549375765196290, 1253706017102820, 2735578083949370 ]
[ "nonn", "easy" ]
A137124
[ 88, 588, 888, 7378, 7588, 8588, 74388, 88588, 738538, 743878, 745478, 747378, 758588, 5878388, 7338588, 7448878, 7573538, 8878878, 57843538, 73385888, 73877438, 73883588, 75745478, 75784878, 88534388, 578573538, 733878388, 757544438, 7384753588, 7575344438, 7587775588, 8575883388, 57773588588, 73738374388, 74534384538 ]
[ "base", "nonn" ]
A167981
[ 24, 128, 696, 2112, 5024, 5736, 1344 ]
[ "fini", "full", "nonn" ]
A104036
[ 4, 7, 10, 12, 14, 17, 19, 21, 23, 26, 29, 31, 33, 36, 37, 40, 43, 46, 48, 50, 52, 55, 57, 59, 62, 64, 66, 69, 71, 74, 76, 79, 80, 84, 85, 89, 90, 92, 96, 98, 101, 102, 105, 107, 109, 112, 115, 117, 119, 122, 125, 127, 128, 132, 134, 136, 138, 141, 143, 145, 148 ]
[ "nonn", "base" ]
A022499
[ 3, 31, 3111, 3113, 311231, 3112213111, 311222113113, 31122312311231, 3.1122231112131124e+21, 3.1122331132111313e+25, 3.112223212312113e+29 ]
[ "nonn", "base", "easy", "nice" ]
A011564
[ 1, 16383, 2375101, 42355950, 210766920, 420693273, 408741333, 216627840, 67128490, 12662650, 1479478, 106470, 4550, 105, 1 ]
[ "nonn", "fini", "full" ]
A331686
[ 1, 2, 4, 8, 17, 41, 103, 280, 793, 2330, 6979, 21291 ]
[ "nonn", "more" ]
A065850
[ 1, 2, 5, 11, 39, 161, 865, 4604, 22636, 161107, 840691, 4813328, 29664164 ]
[ "base", "more", "nonn" ]
A135246
[ 1, 3, 5, 7, 11, 17, 27, 41, 65, 99, 157, 239, 379, 577, 915, 1393, 2209, 3363, 5333, 8119, 12875, 19601, 31083, 47321, 75041, 114243, 181165, 275807, 437371, 665857, 1055907, 1607521, 2549185, 3880899, 6154277, 9369319, 14857739, 22619537, 35869755, 54608393, 86597249, 131836323, 209064253, 318281039, 504725755, 768398401, 1218515763, 1855077841, 2941757281, 4478554083 ]
[ "nonn", "easy" ]
A364692
[ 68, 130, 42, 59, 76, 0, 0, 161, 192, 233, 227, 276, 0, 425, 480, 0, 0, 0, 752 ]
[ "nonn", "more" ]
A326032
[ 0, 0, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 4, 4, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 6, 6, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 6, 6, 6, 6, 7, 7, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 6, 6, 3, 3, 4, 4, 4, 4, 5 ]
[ "nonn" ]
A118366
[ 1, 5, 26, 680, 462402, 213815609606, 4.57171149111854e+22, 2.0900545958025303e+45 ]
[ "nonn" ]
A227538
[ 0, 1, 2, 3, 4, 5, 4, 7, 8, 6, 5, 9, 8, 9, 7, 6, 11, 12, 9, 10, 8, 7, 11, 12, 13, 10, 11, 9, 8, 15, 12, 13, 14, 11, 12, 10, 9, 16, 17, 13, 14, 15, 12, 13, 11, 10, 16, 17, 18, 14, 15, 16, 13, 14, 12, 11, 16, 17, 18, 19, 15, 16, 17, 14, 15, 13, 12, 22, 17, 18, 19 ]
[ "nonn", "look", "hear" ]
A034430
[ 1, 2, 7, 36, 249, 2190, 23535, 299880, 4426065, 74294010, 1397669175, 29123671500, 665718201225, 16560190196550, 445300709428575, 12869793995058000, 397815487883438660, 13095523164781308000, 457362512442763300000, 1.6890682269050394e+22 ]
[ "nonn" ]
A269756
[ 4, 7, 4, 20, -12, 36, -16, 72, -72, 84, -8, 80, -56, 116, -16, 52, -28, 100, 24, -4, -4, 108, 100, -28, -60, 252, 36, -36, -44, 180, 168, -224, 40, 276, 148, -76, -132, 220, 376, -292, -84, 472, 192, -300, -32, 340, 344, -240, -236, 524, 440, -472, -268, 756 ]
[ "sign", "easy" ]
A214278
[ 0, 2, 1, 8, 12, 23, 56, 100, 196, 380, 734, 1360, 2583, 4831, 8933, 16629, 30627, 56359, 103401, 189241, 345386, 629284, 1144379, 2076985, 3764633, 6812624, 12312124, 22223544, 40067505, 72159773, 129826552, 233358096, 419077220, 751979608, 1348268372 ]
[ "nonn" ]
A326996
[ 1, 1, 4, 365, 3086331, 5612271711927, 3.8297971882127314e+21, 1.478967550753026e+33, 4.525014758820338e+47, 1.4663084922009718e+65 ]
[ "nonn" ]
A085194
[ 1, 3, 1, 2, 9, 1, 3, 1, 2, 5, 1, 2, 4, 29, 1, 3, 1, 2, 9, 1, 3, 1, 2, 5, 1, 2, 4, 13, 1, 3, 1, 2, 5, 1, 2, 4, 9, 1, 2, 4, 8, 101, 1, 3, 1, 2, 9, 1, 3, 1, 2, 5, 1, 2, 4, 29, 1, 3, 1, 2, 9, 1, 3, 1, 2, 5, 1, 2, 4, 13, 1, 3, 1, 2, 5, 1, 2, 4, 9, 1, 2, 4, 8, 37, 1, 3, 1, 2, 9, 1, 3, 1, 2, 5, 1, 2, 4, 13, 1, 3, 1, 2 ]
[ "nonn" ]
A308920
[ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2, 2, 4, 4, 6, 9, 6, 9, 10, 14, 12, 18, 14, 24, 20, 29, 22, 41, 24, 48, 34, 57, 36, 69, 40, 85, 48, 90, 54, 120, 58, 132, 70, 150, 76, 176, 82, 202, 94, 221, 106, 266, 108, 293, 128, 328, 140, 366, 146, 426, 162, 450 ]
[ "nonn" ]
A232222
[ 1, 3, 13, 65, 354, 2035, 12151, 74618, 468233, 2989093, 19350384, 126730636, 838161358, 5589998777, 37552863737, 253877488505, 1725951649616, 11791929640102, 80921655496164, 557538161292336, 3855215134210479, 26745074320086284, 186095529221819230, 1298423607303400000 ]
[ "nonn" ]
A184098
[ 3, 9, 87, 361, 1383, 7569, 20247, 126025, 299463, 1912689 ]
[ "nonn" ]
A164786
[ 1, 57, 505, 4089, 32761, 262137, 2097145, 16777209, 134217721, 1073741817, 8589934585, 68719476729, 549755813881, 4398046511097, 35184372088825, 281474976710649, 2251799813685241, 18014398509481976, 144115188075855870 ]
[ "nonn", "easy" ]
A371532
[ 1, 19, 93, 263, 569, 1051, 1749, 2703, 3953, 5539, 7501, 9879, 12713, 16043, 19909, 24351, 29409, 35123, 41533, 48679, 56601, 65339, 74933, 85423, 96849, 109251, 122669, 137143, 152713, 169419, 187301, 206399, 226753, 248403, 271389, 295751, 321529, 348763 ]
[ "nonn", "easy" ]
A227392
[ 1, 2, 2, 3, 5, 6, 10, 6, 9, 10, 24, 9, 13, 14, 44, 12, 17, 18, 70, 15, 21, 22, 102, 18, 25, 26, 140, 21, 29, 30, 184, 24, 33, 34, 234, 27, 37, 38, 290, 30, 41, 42, 352, 33, 45, 46, 420, 36, 49, 50 ]
[ "nonn" ]
A184953
[ 0, 0, 0, 1, 3, 59, 7847, 3459376, 2585136287, 2807104844073 ]
[ "nonn", "more", "hard" ]
A097900
[ 1, 2, 7, 32, 180, 1200, 9240, 80640, 786240, 8467200, 99792000, 1277337600, 17643225600, 261534873600, 4140968832000, 69742632960000, 1244905998336000, 23475370254336000, 466306218233856000, 9731608032706560000 ]
[ "nonn", "easy" ]
A351905
[ 1, 1, 1, 1, -23, -119, -359, -839, 18481, 178417, 902161, 3318481, -69866279, -1011908039, -7204341143, -36194591159, 726745175521, 14326789219681, 131901636673441, 840736509931297, -16060449291985080, -408041402342457200, -4618341644958694000, -35691963052019430000 ]
[ "sign" ]
A072575
[ 1, 0, 1, 0, 2, 1, 0, 0, 2, 1, 0, 0, 2, 2, 1, 0, 0, 6, 2, 2, 1, 0, 0, 0, 8, 2, 2, 1, 0, 0, 0, 6, 8, 2, 2, 1, 0, 0, 0, 6, 8, 8, 2, 2, 1, 0, 0, 0, 24, 12, 8, 8, 2, 2, 1, 0, 0, 0, 0, 30, 14, 8, 8, 2, 2, 1, 0, 0, 0, 0, 30, 36, 14, 8, 8, 2, 2, 1, 0, 0, 0, 0, 24, 36, 38, 14, 8, 8, 2, 2, 1, 0, 0, 0, 0, 24, 54, 42, 38, 14, 8, 8, 2, 2, 1 ]
[ "nonn", "tabl" ]
A327354
[ 1, 1, 2, 8, 53, 747, 45156, 54804920, 19317457655317 ]
[ "nonn", "more" ]
A052085
[ 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97, 103, 107, 109, 113, 127, 137, 139, 149, 157, 163, 167, 173, 179, 193, 197, 199, 211, 223, 227, 229, 233, 239, 241, 251, 257, 263, 269, 271, 277, 281, 283, 293, 307 ]
[ "nonn", "base" ]
A213844
[ 3, 16, 7, 47, 32, 11, 104, 83, 48, 15, 195, 168, 119, 64, 19, 328, 295, 232, 155, 80, 23, 511, 472, 395, 296, 191, 96, 27, 752, 707, 616, 495, 360, 227, 112, 31, 1059, 1008, 903, 760, 595, 424, 263, 128, 35, 1440, 1383, 1264 ]
[ "nonn", "tabl", "easy" ]
A115435
[ 2137, 2892, 6369, 12217, 21964, 28233, 42312, 4978977, 9571608, 18642249, 32288908, 96039609, 200037461217, 305526508312, 570666416233, 638912248204, 996003996009, 1846991026584, 3251664327537, 4859838227992 ]
[ "base", "nonn" ]
A118730
[ 1, 2, 3, 6, 9, 11, 13, 14, 15, 17, 21, 26, 32, 33, 36, 37, 41, 42, 43, 44, 45, 46, 47, 50, 51, 54, 55, 57, 58, 60, 61, 64, 65, 67, 70, 71, 73, 74, 76, 77, 78, 79, 80, 82, 83, 84, 85, 86, 90, 91, 95, 98, 102, 103, 106, 107, 112, 113, 115, 116, 117, 120, 122, 123, 124, 126 ]
[ "nonn", "base" ]
A365695
[ 1, 0, 0, 1, 1, 1, 6, 12, 19, 62, 156, 318, 852, 2254, 5262, 13441, 35543, 88772, 226880, 596937, 1539188, 3980364, 10468270, 27410289, 71702956, 189169352, 499529048, 1318355542, 3493861461, 9278408639, 24647900618, 65620808508, 175037591303, 467277998136 ]
[ "nonn" ]