a(n) = Product_{3 <= q <= 2n+1, q prime} q^floor((2n/(q-1)).
1, 3, 45, 945, 14175, 467775, 638512875, 1915538625, 488462349375
2 seqfan posts
Wed Sep 21 01:09:07 CEST 2011 [seqfan] Re: denominators of A187870
Wed Sep 21 00:37:06 CEST 2011 [seqfan] denominators of A187870
Index of A-numbers in seqfan: by ascending order
by month
by frequency
by keyword
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