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 A057993 #6 Mar 30 2012 17:37:11 %S A057993 1,1,1,3,13,81,3883 %N A057993 Number of self-converse quasigroups of order n. %H A057993 <a href="/index/Qua#quasigroups">Index entries for sequences related to quasigroups</a> %Y A057993 Cf. A057991-A057994, A057771, A057996. %K A057993 nonn,more %O A057993 0,4 %A A057993 _Christian G. Bower_, Nov 01 2000