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A001318 Generalized pentagonal numbers: n(3n-1)/2, n=0, +- 1, +- 2,....
(Formerly M1336 N0511)
+0
61
0, 1, 2, 5, 7, 12, 15, 22, 26, 35, 40, 51, 57, 70, 77, 92, 100, 117, 126, 145, 155, 176, 187, 210, 222, 247, 260, 287, 301, 330, 345, 376, 392, 425, 442, 477, 495, 532, 551, 590, 610, 651, 672, 715, 737, 782, 805, 852, 876, 925, 950, 1001, 1027, 1080, 1107, 1162, 1190, 1247, 1276, 1335 (list; graph; listen)
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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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