a(n) = least k such that the remainder when 16^k is divided by k is n.
3, 7, 13, 6, 11, 10, 87, 62, 209, 18, 35, 122, 4083, 22, 16584420001, 17, 1343851, 34
1 seqfan posts
Tue Aug 11 01:35:14 CEST 2009 [seqfan] Re: Dead b-files for A127816 and others