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A005581 (n-1)*n*(n+4)/6.
(Formerly M1744)
+0
16
0, 0, 2, 7, 16, 30, 50, 77, 112, 156, 210, 275, 352, 442, 546, 665, 800, 952, 1122, 1311, 1520, 1750, 2002, 2277, 2576, 2900, 3250, 3627, 4032, 4466, 4930, 5425, 5952, 6512, 7106, 7735, 8400, 9102, 9842, 10621, 11440, 12300, 13202, 14147, 15136, 16170 (list; graph; listen)
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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.


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