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A005900 Octahedral numbers: (2n^3 + n)/3.
(Formerly M4128)
+0
65
0, 1, 6, 19, 44, 85, 146, 231, 344, 489, 670, 891, 1156, 1469, 1834, 2255, 2736, 3281, 3894, 4579, 5340, 6181, 7106, 8119, 9224, 10425, 11726, 13131, 14644, 16269, 18010, 19871, 21856, 23969, 26214, 28595, 31116, 33781, 36594, 39559, 42680 (list; graph; listen)
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Last modified December 2 11:54 EST 2009. Contains 167921 sequences.


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