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 A163896 #2 Mar 31 2012 13:21:18 %S A163896 0,2,4,24,33,76,390,536,1092,6242,17953,137286,143633 %N A163896 Record values of A163894. %Y A163896 a(n) = A163894(A163895(n)). See A163891, A163893, A163894, A163911, A163912. %K A163896 nonn %O A163896 0,2 %A A163896 _Antti Karttunen_, Sep 19 2009