(20n^3 + 3n^2 - 17n)/6.
0, 1, 23, 86, 210, 415, 721, 1148, 1716, 2445, 3355, 4466, 5798, 7371, 9205, 11320
2 seqfan posts
Wed Mar 3 04:46:13 CET 2010 [seqfan] Re: A172043 and many more
Wed Mar 3 01:35:41 CET 2010 [seqfan] A172043 and many more
Index of A-numbers in seqfan: by ascending order
by month
by frequency
by keyword
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