Numbers n = abc...k such that a^2*b^2*c^2*...k^2 - 1 = n.
143, 323, 1166
2 seqfan posts
Fri Jan 9 20:41:13 CET 2009 [seqfan] Re: %S A1 33,52,1716,...
Thu Jan 8 04:00:25 CET 2009 [seqfan] %S A1 33,52,1716,...
Index of A-numbers in seqfan: by ascending order
by month
by frequency
by keyword
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