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 A030246 #8 Mar 30 2012 17:37:00 %S A030246 0,0,4,93,49627 %N A030246 Number of nonisomorphic groupoids with a nontrivial symmetry. %H A030246 <a href="/index/Gre#groupoids">Index entries for sequences related to groupoids</a> %Y A030246 A001329 - A030245. %K A030246 nonn,more %O A030246 0,3 %A A030246 _Christian G. Bower_