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 A030242 #5 Mar 30 2012 17:37:00 %S A030242 1,2,6,70,2464,268266 %N A030242 Number of n-point nonisomorphic relations with no symmetry. %K A030242 nonn,more %O A030242 0,2 %A A030242 _Christian G. Bower_