id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A073802
[ 1, 1, 1, 1, 1, 4, 1, 1, 1, 2, 1, 3, 1, 2, 2, 1, 1, 2, 1, 2, 1, 2, 1, 6, 1, 2, 1, 6, 1, 4, 1, 1, 2, 2, 1, 1, 1, 2, 1, 4, 1, 4, 1, 3, 2, 2, 1, 3, 1, 1, 2, 2, 1, 4, 1, 4, 1, 2, 1, 6, 1, 2, 1, 1...
[ "nonn" ]
A078085
[ 0, 1, 18, 7, 1, 1, 5, 1, 3, 6, 1, 2, 1, 1, 1, 38, 1, 3, 1, 1, 1, 1, 7, 2, 2, 2, 1, 24, 8, 8, 1, 3, 1, 1, 2, 35, 2, 1, 4, 1, 15, 2, 3, 6, 64, 3, 2, 2, 1, 2, 1, 30, 2, 1, 1, 8, 1, 2, 2, 1, 4, 24, ...
[ "nonn", "cofr" ]
A388425
[ 1, 3, 10, 9, 28, 30, 140, 27, 82, 84, 280, 90, 1148, 420, 5986, 81, 244, 246, 410, 252, 1342, 840, 2044, 270, 10004, 656, 97966, 757, 3028, 7570, 15140, 243, 730, 732, 3796, 738, 12962, 1230, 5740, 756, 13468, 4026, 32986, 2520, ...
[ "nonn" ]
A059171
[ 1, 1, 3, 8, 30, 144, 840, 5760, 45360, 403200, 3991680, 43545600, 518918400, 6706022400, 93405312000, 1394852659200, 22230464256000, 376610217984000, 6758061133824000, 128047474114560000, 2554547108585472000, 53523844179886080000, 1.1750916699493171e+21 ]
[ "nonn", "easy", "nice", "changed" ]
A033221
[ 31, 47, 67, 131, 149, 173, 227, 283, 293, 349, 379, 431, 521, 577, 607, 617, 653, 811, 839, 853, 857, 919, 937, 971, 1031, 1063, 1117, 1187, 1213, 1237, 1259, 1303, 1327, 1451, 1493, 1523, 1559, 1583, 1619, 1663, 1721, 1723, 1741, ...
[ "nonn", "easy" ]
A327583
[ 1, 1, 3, 4, 13, 6, 48, 75, 150, 536, 541, 300, 2820, 6320, 4683, 666, 11144, 50150, 81012, 47293, 936, 41346, 308080, 903210, 1134952, 545835, 1824, 131304, 1689040, 7805080, 16914786, 17346352, 7087261, 2520, 420084, 8279640, 58728660, 19405...
[ "nonn", "tabf" ]
A019839
[ 1, 21, 301, 3681, 41461, 445641, 4658221, 47871201, 486836581, 4919066361, 49504632541, 496978967121, 4981629662101, 49888557269481, 499325240101261, 4995920923029441, 49975372950286024, 499851474762263000, 4999105033876312000, 49994611129771550000 ]
[ "nonn", "easy" ]
A117805
[ 3, 6, 30, 870, 756030, 571580604870, 3.267043878629835e+23, 1.0673575704892676e+47, 1.1392521832807516e+94 ]
[ "easy", "nonn" ]
A089937
[ 21, 239, 2999, 36787, 454385, 5598861, 69050253, 851302029, 10496827403, 129422885699, 1595777230271, 19675706193157, 242599324206721, 2991220223776445, 36881397137844410, 454743263319217800, 5606930966068061000, 69132797971283000000 ]
[ "nonn" ]
A134425
[ 1, 5, 27, 151, 861, 4969, 28911, 169187, 994329, 5862925, 34658691, 205305423, 1218183669, 7238062641, 43055682327, 256365292443, 1527728176305, 9110460044821, 54362600841963, 324557242893191, 1938584147698701 ]
[ "nonn" ]
A118809
[ 1, 2, 3, 5, 6, 9, 4, 10, 11, 13, 8, 16, 12, 14, 17, 20, 15, 22, 7, 25, 21, 24, 18, 31, 26, 28, 27, 33, 19, 36, 29, 35, 34, 37, 38, 44, 30, 40, 39, 47, 23, 48, 32, 49, 46, 45, 42, 57, 50, 54, 51, 55, 41, 61, 5...
[ "nonn" ]
A373315
[ 1, 2, 28, 592, 15360, 452864, 14607168, 504327808, 18383015936, 700853891584, 27763279234048, 1137180367163392, 47984104148398080, 2079829668276404200, 92391710881374030000, 4.198734066925715e+21, 1.949105029076124e+23, 9.230979805443696e+24, 4.4556240152492075e+26 ]
[ "nonn" ]
A225735
[ 2, 3, 4, 5, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 22, 24, 26, 27, 28, 30, 32, 33, 34, 35, 36, 38, 39, 40, 42, 44, 45, 48, 50, 52, 54, 56, 60, 63, 64, 66, 68, 70, 72, 75, 76, 78, 80, 84, 88, 90, 92, 96, 98, ...
[ "nonn", "fini", "full" ]
A299089
[ 1, 2, 2, 4, 8, 4, 8, 26, 26, 8, 16, 88, 92, 88, 16, 32, 298, 354, 354, 298, 32, 64, 1012, 1387, 1617, 1387, 1012, 64, 128, 3440, 5470, 7722, 7722, 5470, 3440, 128, 256, 11700, 21484, 36667, 46456, 36667, 21484, 11700, 256, 512...
[ "nonn", "tabl" ]
A227720
[ 5, 16, 34, 57, 86, 121, 163, 210, 263, 322, 388, 459, 536, 619, 709, 804, 905, 1012, 1126, 1245, 1370, 1501, 1639, 1782, 1931, 2086, 2248, 2415, 2588, 2767, 2953, 3144, 3341, 3544, 3754, 3969, 4190, 4417, 4651, 4890, 5135, 5386, 564...
[ "nonn", "easy" ]
A165757
[ 1, 5, 20, 80, 320, 1280, 5120, 20480, 81920, 327680, 1310710, 5242800, 20971050, 83883600, 335532000, 1342118400, 5368435200, 21473587200, 85893734400, 343572480000, 1374280089690, 5497081037820, 21988166868630, 87952038348420 ]
[ "nonn" ]
A008705
[ 1, -1, -1, 5, -5, -6, 11, 41, -125, -85, 1054, -2069, -209, 8605, -15625, 3990, 14035, 36685, -130525, -254525, 1899830, -3603805, -134905, 13479425, -25499225, 23579969, -64447293, 237487433, -133867445, -1795846200, 6309965146, -6788705842, -11762712...
[ "sign" ]
A151645
[ 0, 0, 112, 15018688, 69830127680, 99825129369600, 79985306860607380, 46314409921814760000, 2.2045769335091543e+22, 9.274231983519733e+24, 3.6009792965785124e+27, 1.3260298243706612e+30, 4.712906548220912e+32 ]
[ "nonn" ]
A005432
[ 1, 1, 2, 6, 30, 156, 1455, 11300, 151221, 1694723, 29594446, 404126228, 10594925360, 175238308453, 5651774693595, 117053117995400, 5320744503742316, 125889331236297280, 7598016157515303000 ]
[ "nonn", "hard", "more", "nice" ]
A026124
[ 1, 2, 7, 20, 59, 170, 489, 1400, 4002, 11428, 32626, 93160, 266136, 760800, 2176644, 6232896, 17864841, 51253794, 147188535, 423098404, 1217371023, 3505992050, 10106384621, 29158627592, 84200265555, 243345531806, 703858089717 ]
[ "nonn" ]
A018280
[ 1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 96 ]
[ "nonn", "fini", "full", "easy" ]
A229981
[ 1, 2, 8, 5, 0, 7, 2, 9, 5, 6, 6, 6, 2, 4, 3, 1, 9, 8, 3, 2, 0, 3, 9, 2, 2, 7, 0, 6, 5, 1, 7, 9, 7, 1, 4, 3, 8, 8, 1, 4, 4, 0, 1, 5, 4, 6, 4, 7, 7, 9, 0, 6, 6, 6, 1, 2, 5, 9, 6, 2, 0, 5, 2, 7...
[ "nonn", "cons" ]
A197020
[ 4, 6, 1, 9, 2, 3, 1, 8, 7, 7, 0, 5, 2, 2, 8, 2, 3, 8, 2, 1, 7, 1, 5, 3, 0, 3, 3, 3, 6, 9, 3, 8, 9, 9, 9, 9, 6, 2, 0, 4, 3, 4, 7, 2, 6, 7, 0, 5, 6, 8, 8, 6, 5, 7, 9, 7, 6, 7, 0, 6, 4, 3, 0, 3...
[ "nonn", "cons" ]
A135342
[ 1, 3, 5, 9, 15, 25, 37, 55, 77, 105, 137, 179, 225, 283, 347, 419, 499, 595, 697, 817, 945, 1085, 1235, 1407, 1587, 1787, 1999, 2229, 2471, 2741, 3019, 3327, 3651, 3995, 4355, 4739, 5135, 5567, 6017, 6491, 6981, 7511, 8053, 8637, ...
[ "easy", "nonn" ]
A390330
[ 1, 4, 5, 8, 9, 10, 15, 18, 19, 23, 29, 32, 38, 40, 41, 45, 46, 47, 53, 55, 56, 57, 60, 61, 62, 63, 66, 68, 69, 70, 71, 75, 76, 80, 81, 82, 83, 84, 85, 91, 93, 94, 95, 98, 100, 101, 104, 105, 106, 107, 108, 111, 1...
[ "nonn", "new" ]
A310808
[ 1, 4, 7, 13, 16, 23, 23, 30, 32, 38, 39, 47, 48, 57, 55, 66, 64, 72, 71, 81, 80, 89, 89, 98, 98, 104, 107, 113, 114, 121, 123, 130, 130, 138, 139, 147, 146, 157, 155, 164, 162, 172, 171, 179, 180, 189, 189, 196, 198, 2...
[ "nonn" ]
A334916
[ 0, 0, 0, 6, 12, 160, 324, 405, 12, 8385, 36, 189, 784, 32, 1656, 20, 721, 25215, 80, 45, 559, 2585, 5525, 323844, 30, 160, 60, 90, 150, 1071, 11650, 1038448, 6275, 2669, 77, 42, 2224, 324224, 1817, 2016, 252, 7425, 1593074855, 96,...
[ "nonn", "base", "hard" ]
A145269
[ 0, 0, 0, 0, 0, 1, 14, 222, 5380, 194815, 10864252, 1000316856, 164757860141 ]
[ "nonn", "more" ]
A315721
[ 1, 6, 12, 18, 18, 30, 36, 42, 42, 54, 48, 66, 72, 78, 72, 90, 78, 102, 108, 114, 102, 126, 108, 138, 144, 150, 132, 162, 138, 174, 180, 186, 162, 198, 168, 210, 216, 222, 192, 234, 198, 246, 252, 258, 222, 270, 228, 282, ...
[ "nonn" ]
A387580
[ 2, 3, 6, 7, 8, 9, 18, 19, 20, 21, 22, 23, 51, 52, 53, 54, 55, 56, 57, 58, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 398, 399, 400, 401, 402, 403, 404, 405, 406, 407, 408, 409, 1090, 1091, 1092, 1093, 1094, 1095, ...
[ "nonn", "easy", "tabf" ]
A351591
[ 0, 0, 1, 9, 64, 2197, 608923, 216000000 ]
[ "nonn", "more" ]
A034219
[ 1, 1, 7, 87, 3990, 545544, 131828470, 35754455353, 9300033719253, 2216652346764139, 480242932559153660, 94874768179629900000, 1.7193541252761002e+22, 2.876019980110265e+24 ]
[ "nonn", "fini", "full" ]
A185073
[ 13, 1493, 5851, 6379, 125101 ]
[ "hard", "more", "nonn" ]
A106210
[ 1, 1, 1, 3, 3, 1, 16, 16, 5, 1, 127, 127, 39, 7, 1, 1363, 1363, 416, 72, 9, 1, 18628, 18628, 5671, 967, 115, 11, 1, 311250, 311250, 94643, 16027, 1864, 168, 13, 1, 6173791, 6173791, 1876160, 316600, 36415, 3191, 231, 15, 1, 14...
[ "nonn", "tabl" ]
A146232
[ 1, 1, 9, 33, 113, 1393, 59521, 1585365, 62771429, 6390256297, 1169289395909, 252401149719293, 93670173728309340 ]
[ "nonn" ]
A312942
[ 1, 4, 9, 13, 18, 23, 27, 31, 38, 41, 47, 48, 55, 63, 62, 69, 73, 79, 84, 83, 95, 96, 101, 104, 111, 116, 119, 122, 129, 138, 133, 144, 145, 156, 155, 157, 170, 169, 174, 176, 187, 190, 192, 193, 206, 210, 208, 215, 221, ...
[ "nonn" ]
A234185
[ 412, 3710, 33720, 307598, 2802904, 25588052, 233283984, 2130704612, 19434069328, 177586235768, 1620462346080, 14814614085176, 135240525352288, 1236977850187472, 11296995731446848, 103375851177954700 ]
[ "nonn" ]
A104570
[ 1, 2, 3, 3, 6, 1, 4, 9, 2, 3, 5, 12, 3, 6, 1, 6, 15, 4, 9, 2, 3, 7, 18, 5, 12, 3, 6, 1, 8, 21, 6, 15, 4, 9, 2, 3, 9, 24, 7, 18, 5, 12, 3, 6, 1, 10, 27, 8, 21, 6, 15, 4, 9, 2, 3, 11, 30, 9, 24, 7, ...
[ "nonn", "tabl" ]
A342915
[ 1, 3, 4, 1, 6, 1, 8, 3, 2, 1, 12, 1, 14, 3, 8, 1, 18, 1, 20, 3, 2, 1, 24, 1, 2, 3, 4, 1, 30, 1, 32, 3, 2, 1, 12, 1, 38, 3, 8, 1, 42, 1, 44, 9, 2, 1, 48, 1, 2, 3, 4, 1, 54, 1, 8, 3, 2, 1, 60, 1, 62...
[ "nonn" ]
A307930
[ 0, 0, 1, 16, 3216, 9748992, 554701578240, 690468767270830100 ]
[ "nonn", "more", "hard" ]
A328470
[ 1, 2, 3, 4, 3, 5, 3, 6, 7, 8, 3, 9, 3, 8, 10, 11, 3, 9, 3, 12, 10, 8, 3, 13, 7, 8, 14, 12, 3, 15, 3, 16, 10, 8, 10, 17, 3, 8, 10, 18, 3, 19, 3, 12, 20, 8, 3, 21, 7, 12, 10, 12, 3, 13, 10, 18, 10, 8, 3...
[ "nonn" ]
A151299
[ 1, 2, 8, 28, 116, 465, 1980, 8393, 36495, 159224, 703466, 3122910, 13965291, 62727001, 283127006, 1282634921, 5831588809, 26593352814, 121612750646, 557511728992, 2561633569528, 11794202901847, 54405218589731, 251397920522538, 1163526932180757, 5393008739923600, 2...
[ "nonn", "walk", "changed" ]
A240869
[ 0, 1, 1, 1, 2, 2, 2, 3, 3, 5, 5, 7, 8, 11, 12, 15, 18, 22, 27, 31, 37, 43, 52, 59, 71, 82, 97, 110, 128, 148, 173, 197, 225, 260, 298, 339, 386, 442, 502, 570, 644, 733, 829, 935, 1052, 1190, 1339, 1504, 1687, 1897, ...
[ "nonn", "easy" ]
A310685
[ 1, 4, 7, 10, 13, 18, 23, 24, 27, 30, 37, 41, 41, 44, 47, 55, 60, 58, 61, 64, 74, 78, 75, 78, 81, 92, 97, 92, 95, 98, 111, 115, 109, 112, 115, 129, 134, 126, 129, 132, 148, 152, 143, 146, 149, 166, 171, 160, 163, 166 ]
[ "nonn" ]
A289532
[ 1, 11, 101, 1011, 11011, 100111, 1110111, 11001111, 111101111, 1110011111, 10101011111, 100000111111, 1001110111111, 10011001111111, 111100101111111, 1111000011111111, 11000011011111112, 111100100111111100, 1000000110111111200, 10000010001111112000 ]
[ "nonn", "easy" ]
A374852
[ 1, 4, 24, 192, 2304, 32256, 580608, 11612160, 278691840, 8360755200, 267544166400, 10166678323200, 427000489574400, 18788021541273600, 901825033981132800, 48698551834981170000, 2.9219131100988703e+21, 1.8115861282612996e+23, 1.2318785672176837e+25 ]
[ "nonn" ]
A286901
[ 5, 7, 12, 11, 18, 15, 24, 34, 45, 23, 36, 27, 42, 58, 75, 35, 54, 39, 60, 82, 105, 47, 72, 98, 125, 153, 182, 59, 90, 63, 96, 130, 165, 201, 238, 75, 114, 154, 195, 83, 126, 87, 132, 178, 225, 95, 144, 194, 245, 297, ...
[ "nonn", "easy", "look" ]
A099414
[ 0, 3, 5, 6, 48, 108, 245, 1044, 20208, 52740, 89189, 130080, 183657, 197061, 348453 ]
[ "nonn", "more" ]
A205457
[ 1, 1, 1, 1, 1, 1, 1, 6, 6, 1, 1, 15, 1, 15, 1, 1, 28, 15, 15, 28, 1, 1, 45, 70, 1, 70, 45, 1, 1, 66, 210, 28, 28, 210, 66, 1, 1, 91, 495, 210, 1, 210, 495, 91, 1, 1, 120, 1001, 924, 45, 45, 924, 1001, 120, 1,...
[ "nonn", "tabl" ]
A046431
[ 10, 11, 12, 14, 20, 21, 23, 27, 32, 34, 40, 41, 43, 47, 72, 74, 100, 101, 103, 110, 111, 113, 130, 131, 157, 175, 236, 263, 289, 298, 300, 301, 310, 311, 326, 348, 355, 362, 384, 438, 445, 454, 458, 483, 485, 507, 517, 535...
[ "nonn", "base" ]
A286970
[ 1, 0, 1, 1, 1, 3, 2, 6, 6, 10, 16, 20, 35, 45, 72, 103, 150, 228, 324, 491, 710, 1053, 1552, 2272, 3369, 4930, 7288, 10711, 15771, 23244, 34175, 50382, 74113, 109168, 160722, 236596, 348446, 512894, 755303, 1111946, 1637205, 2410592, ...
[ "nonn", "base" ]
A296180
[ 1, 1, 1, 1, 4, 1, 1, 7, 7, 1, 1, 10, 13, 10, 1, 1, 13, 19, 19, 13, 1, 1, 16, 25, 28, 25, 16, 1, 1, 19, 31, 37, 37, 31, 19, 1, 1, 22, 37, 46, 49, 46, 37, 22, 1, 1, 25, 43, 55, 61, 61, 55, 43, 25, 1, 1, 28,...
[ "nonn", "easy", "tabl" ]
A254673
[ 3, 5, 7, 11, 13, 23, 47, 59, 71, 73, 79, 97, 103, 113, 127, 137, 181, 199, 251, 263, 271, 281, 293, 331, 359, 367, 397, 419, 433, 443, 449, 457, 463, 487, 503, 523, 541, 571, 607, 613, 617, 631, 653, 709, 719, 751, 761, 77...
[ "nonn" ]
A221449
[ 1, 105, 1473, 18393, 260557, 3669101, 51186449, 715191073, 9997750841, 139736151537, 1953034926537, 27297122633073, 381525299372673, 5332483219348113, 74530789226270780, 1041698296419651800 ]
[ "nonn" ]
A315904
[ 1, 6, 8, 14, 18, 26, 28, 32, 38, 44, 46, 56, 52, 66, 66, 74, 70, 86, 84, 92, 90, 108, 98, 116, 108, 126, 118, 134, 126, 146, 136, 156, 142, 168, 154, 176, 160, 186, 174, 194, 178, 210, 188, 216, 198, 228, 206, 236, 216, ...
[ "nonn" ]
A207062
[ 2, 16, 102, 720, 6398, 54684, 468348, 4356936, 41716708, 403445900, 4037337213, 41571957024, 435311467198, 4653843868560, 50835606848268, 564791240516000, 6378296516533122, 73247208566761540, 853936849893078000 ]
[ "nonn" ]
A385523
[ 2, 4, 5, 8, 9, 16 ]
[ "nonn", "fini", "full" ]
A081981
[ 11, 23, 101, 113, 131, 167, 211, 233, 263, 269, 311, 359, 383, 431, 443, 727, 863, 1013, 1021, 1031, 1061, 1103, 1163, 1201, 1217, 1223, 1259, 1301, 1361, 1427, 1439, 1601, 1613, 1619, 1637, 1721, 1777, 1823, 1847, 2003, 2011, 2063, ...
[ "base", "nonn" ]
A178494
[ 12, 29, 60, 93, 129, 181, 238, 314, 443, 577, 725, 875, 1049, 1226, 1422, 1668, 1962, 2259, 2575, 2922, 3274, 3642, 4011, 4399, 4791, 5205, 5669, 6155, 6667, 7204, 7760, 8392, 9046, 9750, 10599, 11467, 12339, 13305, 14274, 15262, 16348,...
[ "nonn" ]
A167093
[ 1, 40, 1560, 60840, 2372760, 92537640, 3608967960, 140749750440, 5489240267160, 214080370419240, 8349134446350360, 325616243407664060, 12699033492898898000, 495262306223057000000, 1.9315229942699222e+22 ]
[ "nonn" ]
A120460
[ 3, 5, 7, 13, 19, 23, 29, 47, 61, 83, 97, 127, 149, 163, 173, 181, 191, 211, 239, 251, 257, 281, 307, 313, 317, 331, 359, 373, 383, 419, 433, 439, 449, 467, 491, 503, 593, 607, 617, 631, 643, 701, 709, 719, 751, 797, 811, 8...
[ "base", "nonn" ]
A212718
[ 1, 3, 12, 84, 28, 42, 168, 280, 3640, 32760, 32760, 32760, 4680, 1170, 4680, 145080, 145080, 145080, 145080, 1015560, 4062240, 4062240, 4062240, 4062240, 4062240, 4062240, 4062240, 4062240, 4062240, 4062240, 2031120, 2031120, 1015560, 3046680, 6093...
[ "nonn", "frac" ]
A036965
[ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 15, 16, 18, 20, 21, 24, 25, 28, 30, 32, 35, 36, 40, 42, 45, 48, 50, 54, 56, 60, 63, 64, 72, 75, 84, 90, 96, 105, 108, 112, 120, 126, 128, 135, 140, 144, 150, 160, 162, 168, 180, ...
[ "easy", "nonn" ]
A133202
[ 1, 8, 18, 14, 32, 48, 32, 80, 20, 120, 48, 108, 16, 112, 192, 26, 48, 96, 144, 192, 216, 144, 32, 384, 12, 80, 224, 120, 32, 420, 72, 192, 320, 160, 360, 210, 8, 576, 144, 792, 32, 432, 12, 216, 288, 84, 40, 180, 12, 9...
[ "nonn" ]
A255015
[ 1, 2, 6, 44, 2209, 674384, 954623404, 5744406453840, 144115192471496830, 1.492501012065382e+22, 6.338253001142966e+27, 1.0985355337065423e+34, 7.743314305045355e+40 ]
[ "nonn" ]
A195916
[ 1, 1, 2, 1, 3, 3, 1, 2, 0, 4, 1, 3, 2, 4, 5, 1, 2, 1, 6, 1, 6, 1, 3, 3, 7, 7, 7, 7, 1, 2, 0, 4, 0, 0, 0, 8, 1, 3, 2, 4, 4, 0, 0, 8, 9, 1, 2, 1, 6, 0, 4, 0, 8, 1, 10, 1, 3, 3, 7, 6, 4, 4, 8, ...
[ "nonn", "easy", "tabl" ]
A229970
[ 4, 9, 25, 49, 121, 212, 1001, 2636, 10201, 17161, 22801, 32761, 36481, 97969, 110011, 124609, 139129, 146689, 528529, 573049, 619369, 635209, 844561, 863041, 1100011, 10100101, 11000011, 101000101, 106110601, 110000011, 110271001, 112381201, 127938721,...
[ "nonn", "base" ]
A035651
[ 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 4, 4, 4, 4, 4, 4, 4, 10, 11, 11, 11, 11, 11, 11, 22, 25, 26, 26, 26, 26, 26, 44, 51, 54, 55, 55, 55, 55, 84, 98, 105, 108, 109, 109, 109, 153, 178, 193, 200, 203, 204...
[ "nonn" ]
A263028
[ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 26, 27, 28, 29, 30, 31, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 51, 52, 53, 54, 56, 57, 58, 5...
[ "nonn", "easy" ]
A039221
[ 0, 2, 4, 5, 6, 7, 8, 9, 10, 11, 15, 24, 26, 28, 29, 30, 31, 32, 33, 34, 35, 37, 48, 50, 52, 53, 54, 55, 56, 57, 58, 59, 60, 62, 64, 65, 66, 67, 68, 69, 70, 71, 72, 74, 76, 77, 78, 79, 80, 81, 82, 83, 84, 86, ...
[ "nonn", "base", "easy" ]
A099434
[ 1, 2, 5, 9, 12, 13, 14, 30, 37, 291, 292 ]
[ "nonn", "more" ]
A071485
[ 1, 2, 1, 2, 0, 3, 0, 1, 2, 4, 5, 3, 1, 2, 1, 2, 4, 3, 0, 3, 0, 2, 1, 4, 3, 5, 8, 2, 1, 3, 6, 3, 0, 4, 1, 2, 1, 2, 0, 5, 4, 1, 2, 3, 5, 4, 7, 2, 7, 2, 3, 5, 0, 7, 1, 3, 8, 3, 5, 2, 7, 8, 1, 3...
[ "nonn" ]
A013707
[ 6, 9, 3, 1, 3, 7, 1, 8, 0, 6, 5, 9, 9, 4, 5, 3, 0, 9, 3, 9, 7, 2, 3, 2, 1, 2, 1, 4, 7, 4, 1, 7, 6, 5, 6, 8, 0, 4, 8, 3, 0, 0, 1, 3, 4, 4, 3, 9, 6, 1, 5, 2, 5, 3, 7, 6, 6, 8, 8, 8, 0, 1, 1, 7...
[ "cons", "nonn", "easy", "nice" ]
A208735
[ 1, 4, 20, 130, 1070, 10738, 127316, 1741705, 27003335, 467906045, 8961068424, 187959552998, 4285257122545, 105513858706830, 2790444044794960 ]
[ "nonn", "easy" ]
A027199
[ 1, 1, 1, 2, 1, 1, 2, 1, 1, 1, 4, 1, 1, 1, 1, 5, 2, 1, 1, 1, 1, 8, 2, 1, 1, 1, 1, 1, 10, 3, 1, 1, 1, 1, 1, 1, 16, 4, 2, 1, 1, 1, 1, 1, 1, 20, 6, 2, 1, 1, 1, 1, 1, 1, 1, 29, 7, 3, 1, 1, 1, 1, 1,...
[ "nonn", "tabl" ]
A339734
[ 1, -8, -8, 28, -8, 56, -8, -64, 28, 56, -8, -168, -8, 56, 56, 134, -8, -168, -8, -168, 56, 56, -8, 344, 28, 56, -64, -168, -8, -328, -8, -288, 56, 56, 56, 428, -8, 56, 56, 344, -8, -328, -8, -168, -168, 56, -8, -728, 28,...
[ "sign" ]
A388227
[ 2, 8, 7, 8, 0, 2, 0, 3, 1, 1, 5, 1, 7, 5, 8, 1, 8, 5, 6, 5, 9, 4, 6, 4, 0, 4, 4, 2, 9, 0, 7, 1, 2, 3, 1, 9, 9, 7, 5, 7, 0, 6, 2, 6, 2, 2, 0, 9, 0, 8, 8, 3, 3, 9, 5, 4, 4, 5, 0, 7, 5, 5, 2, 4...
[ "nonn", "cons" ]
A360675
[ 1, 1, 0, 1, 1, 0, 1, 2, 0, 0, 1, 2, 2, 0, 0, 1, 3, 3, 0, 0, 0, 1, 3, 5, 2, 0, 0, 0, 1, 4, 6, 4, 0, 0, 0, 0, 1, 4, 9, 5, 3, 0, 0, 0, 0, 1, 5, 10, 10, 4, 0, 0, 0, 0, 0, 1, 5, 13, 12, 9, 2, 0, 0,...
[ "nonn", "tabl" ]
A372884
[ 1, 5, 19, 67, 230, 778, 2602, 8618, 28303, 92275, 298949, 963253, 3089020, 9864896, 31388260, 99545572, 314779181, 992765041, 3123577735, 9806581175, 30727287586, 96104495110, 300081382574, 935547839662, 2912554595035, 9055397013503, 28119390725977, 872177712346...
[ "nonn", "easy" ]
A296334
[ 34, 705, 10277, 180404, 3051494, 51335713, 869077778, 14686634221, 248214082895, 4195672165071, 70917160317395, 1198689440814874, 20261102869525596, 342467454375040900, 5788629587868911000, 97843565288256130000 ]
[ "nonn" ]
A283097
[ 2, 142, 4607, 107007, 2231690, 42681282, 774403237, 13508097744, 228643318057, 3779831485411, 61301958031506, 978593190144974, 15415280790236212, 240088085281666400, 3702829542983428600, 56621929465854140000 ]
[ "nonn" ]
A018850
[ 1729, 4104, 20683, 39312, 40033, 64232, 65728, 134379, 149389, 171288, 195841, 216027, 327763, 402597, 439101, 443889, 515375, 684019, 704977, 805688, 842751, 920673, 955016, 984067, 994688, 1009736, 1016496, 1073375, 1092728, 1331064 ]
[ "nonn" ]
A316177
[ 1, 8, 134, 3653, 168051, 14569771, 2280994876, 658322110177, 351724619629025, 348538706870343100, 641870813261257800000 ]
[ "nonn" ]
A148936
[ 1, 1, 3, 9, 28, 102, 372, 1392, 5490, 21848, 88322, 364457, 1519209, 6394726, 27196992, 116596476, 503240096, 2185814374, 9549807525, 41930059192, 184918480762, 819029864816, 3641316550806, 16243317238849, 72693657655711, 326286683303623, 1468439616798464, 66253...
[ "nonn", "walk" ]
A389631
[ 1, 0, 2, 2, 9, 22, 65, 210, 612, 2052, 6384, 21252, 69460, 231660, 776997, 2617888, 8900100, 30329904, 104041003, 357956352, 1236881399, 4287549006, 14908649067, 51990305840, 181761080410, 637010036880, 2237351234720, 7874515669020, 27767539187955 ]
[ "nonn", "changed" ]
A201435
[ 1, 5, 21, 75, 111, 527, 1275, 3643, 10245, 30215, 82859, 239133, 688547, 1986411, 5743067, 16751055, 48750751, 142319063, 416145857, 1218638091, 3571823395, 10485601869, 30812312143, 90634015523, 266849118935, 786358091871 ]
[ "nonn" ]
A067120
[ 1, 4, 22, 135, 905, 64662, 4849682, 377197536, 30175802922, 2468929330031, 205744110835938, 17409117070733232, 1492210034634277000, 129324869668304010000, 1.13159260959766e+22, 9.98464067292053e+23, 8.875236153707138e+25, 7.941000769106387e+27 ]
[ "easy", "nonn", "base", "less" ]
A279312
[ 1, 2, 4, 8, 12, 24, 40, 80, 128, 256, 416, 832, 1344, 2688, 4352, 8704, 14080, 28160, 45568, 91136, 147456, 294912, 477184, 954368, 1544192, 3088384, 4997120, 9994240, 16171008, 32342016, 52330496 ]
[ "nonn", "easy" ]
A204177
[ 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 1, 0, 1, 1, 0, 0, 0, 0, 1, 1, 0, 0, 1, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 1, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 1, 0, 0, 0...
[ "nonn", "tabl" ]
A244128
[ 0, 1, 0, 1, -2, 0, 1, -4, 9, 0, 1, -8, 27, -64, 0, 1, -16, 81, -256, 625, 0, 1, -32, 243, -1024, 3125, -7776, 0, 1, -64, 729, -4096, 15625, -46656, 117649, 0, 1, -128, 2187, -16384, 78125, -279936, 823543, -2097152, 0, 1, -2...
[ "sign", "tabf" ]
A333640
[ 421, 757, 1021, 1097, 1117, 1241, 1301, 1553, 1625, 1649, 1973, 2069, 2125, 2237, 2249, 2273, 2665, 2789, 2861, 3085, 3349, 3373, 3461, 3517, 3545, 3877, 3917, 4133, 4397, 4481, 4573, 4589, 4885, 5389, 5521, 5573, 5713, 5717, 6185, 6221, ...
[ "nonn" ]
A119369
[ 1, 1, 0, 0, 1, 1, 1, 0, 0, 1, 2, 3, 2, 1, 0, 0, 1, 3, 6, 9, 7, 3, 1, 0, 0, 1, 4, 10, 20, 30, 23, 11, 4, 1, 0, 0, 1, 5, 15, 36, 70, 104, 81, 40, 16, 5, 1, 0, 0, 1, 6, 21, 58, 133, 253, 374, 293, 149, 6...
[ "nonn", "tabf" ]
A278563
[ 1, 2, 24, 8, 192, 288, 362880, 17280, 215040, 89600, 38320128, 17418240, 7664025600, 402361344000, 62768369664000, 295206912, 2008587829248000, 342372925440000, 919636959090769900000, 5377993912811520000, 38926432130826240000, 89903156428800000 ]
[ "nonn", "frac" ]
A047925
[ 8, 16, 29, 37, 50, 63, 71, 84, 92, 105, 118, 126, 139, 152, 160, 173, 181, 194, 207, 215, 228, 236, 249, 262, 270, 283, 296, 304, 317, 325, 338, 351, 359, 372, 385, 393, 406, 414, 427, 440, 448, 461, 469, 482, 495, 503, 516,...
[ "nonn", "nice", "easy" ]
A365437
[ 1, 1, 0, 0, 2, 0, 0, 0, 8, 32, 40, 96, 410, 1392, 4416, 18752, 71486, 235056, 1001972, 4285920, 21887710, 94619480, 422557444, 2101021824, 11943690634, 61113195600 ]
[ "nonn", "more" ]
A260499
[ 1600, 2115, 5219, 9616, 13651, 31078, 67993, 103520, 205769, 478636, 814781, 1474039, 3329758, 6280086, 11053808, 23440140, 46913222, 84184848, 168447589, 344315004, 638782384, 1233316423, 2511417269, 4802082633, 9139233197 ]
[ "nonn" ]
A376039
[ 0, 1, 5, 65, 1376, 40454, 1523464, 69979734, 3794288280, 237186275520, 16794542216088, 1328558461234080, 116126748206895220, 11114654375545182000, 1.1561033941503869e+21, 1.2985582603762195e+23, 1.566434414503257e+25, 2.0197014920299612e+27 ]
[ "nonn" ]
A129739
[ 2, 3, 7, 23, 59, 8209, 620297, 1687054711, 2.590797980541223e+76, 1.6768886407699817e+113 ]
[ "nonn" ]
A322330
[ 4, 84, 2470, 108390, 7192444, 726782784, 112795368970, 27132558531330, 10196751602156944, 6022337098348167000, 5.612248139616666e+21, 8.27434926462902e+24, 1.9333678744046195e+28, 7.167553705040509e+31, 4.219155182519991e+35 ]
[ "nonn" ]
A109689
[ 1, 1, 21952, 5735339, 4410944, 3553559576, 66676466375, 7707245470777, 148388768680888, 999970000299999, 3.108102438102431e+38, 1.1153411111175112e+30 ]
[ "base", "more", "nonn" ]