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A033580
Four times second pentagonal numbers: 2*n*(3*n+1).
+0
4
0, 8, 28, 60, 104, 160, 228, 308, 400, 504, 620, 748, 888, 1040, 1204, 1380, 1568, 1768, 1980, 2204, 2440, 2688, 2948, 3220, 3504, 3800, 4108, 4428, 4760, 5104, 5460, 5828, 6208, 6600, 7004, 7420, 7848
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
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Last modified December 1 13:27 EST 2009. Contains 167806 sequences.
AT&T Labs Research
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