n*(n+1)*(5*n^2-n-3)/2.
0, 1, 45, 234, 730, 1755, 3591, 6580, 11124, 17685, 26785, 39006, 54990, 75439
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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