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 A030262 #8 Mar 30 2012 17:37:00 %S A030262 0,0,0,3,96,54248 %N A030262 Number of nonisomorphic commutative groupoids with no idempotents and a nontrivial symmetry. %H A030262 <a href="/index/Gre#groupoids">Index entries for sequences related to groupoids</a> %Y A030262 A030260 - A030261. %K A030262 nonn,more %O A030262 0,4 %A A030262 _Christian G. Bower_