a(n) = GCD(n^2, n!).
1, 2, 3, 8, 5, 36, 7, 64, 81, 100, 11, 144, 13, 196, 225, 256, 17, 324, 19, 400, 441, 484
2 seqfan posts
Mon Dec 28 15:23:55 CET 2009 [seqfan] Re: %C A170826
Mon Dec 28 14:56:56 CET 2009 [seqfan] %C A170826
Index of A-numbers in seqfan: by ascending order
by month
by frequency
by keyword
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