This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A115858 #5 Mar 31 2012 13:21:10 %S A115858 1,7,13,11,25,31,21,19,49,23,29,47,41,31,37,35,97,39,61,63,105,59,53, %T A115858 55,81,55,93,59,73,63,69,67,193,71,77,75,89,91,93,91,113,87,109,99, %U A115858 105,107,101,167,161,103,117,107,121,155,157,115,145,119,157,143,137,139 %N A115858 Odd terms in A115857. %H A115858 <a href="/index/Con#CongruCrossDomain">Index entries for sequences defined by congruent products between domains N and GF(2)[X]</a> %Y A115858 Bisection of A115857. %K A115858 nonn %O A115858 1,2 %A A115858 _Antti Karttunen_, Feb 07 2006