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 A030255 #9 Mar 30 2012 17:37:00 %S A030255 1,1,4,116,43428,254197133 %N A030255 Number of nonisomorphic commutative groupoids with no symmetry. %H A030255 <a href="/index/Gre#groupoids">Index entries for sequences related to groupoids</a> %Y A030255 a(n) = A079185(n, A027423(n)). Cf. A001425. %K A030255 nonn,more %O A030255 0,3 %A A030255 _Christian G. Bower_