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 A030265 #8 Mar 30 2012 17:37:00 %S A030265 0,0,6,214,83925 %N A030265 Number of nonisomorphic commutative groupoids with 1 idempotent and a nontrivial symmetry. %H A030265 <a href="/index/Gre#groupoids">Index entries for sequences related to groupoids</a> %Y A030265 A030263 - A030264. %K A030265 nonn,more %O A030265 1,3 %A A030265 _Christian G. Bower_