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 A176349 #2 Mar 30 2012 18:40:08 %S A176349 1,31,28861,24988748491,18733126534418632060921, %T A176349 10527900892636182836790613691868303334293108151, %U A176349 3325100916155092061227521396285672007717003791068669733032713344074584207918598201019772272181 %N A176349 Integers equal to sqrt(A169652(n)/900). %C A176349 a(n) is divisible by 31. %Y A176349 Cf. A169652. %K A176349 nonn %O A176349 1,2 %A A176349 _Giovanni Teofilatto_, Apr 15 2010