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 A068529 #2 Mar 31 2012 13:50:43 %S A068529 9,25,32,32,23,26,33 %N A068529 k values for self-contained numbers. %D A068529 R. K. Guy, Unsolved Problems in Number Theory, E16. %Y A068529 Cf. A005184, A068530. %K A068529 more,nonn %O A068529 1,1 %A A068529 _Naohiro Nomoto_, Mar 22 2002