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 A166488 #10 Mar 31 2012 20:25:00 %S A166488 31,749,0,1210622,1248307242,640121719688,0 %N A166488 Number of transpose-isomorphism classes of SOLSSOMs of order n. %C A166488 A SOLSSOM is a self-orthogonal Latin square with a symmetric orthogonal mate. Two SOLSSOMs (L,S) and (L',S') are transpose-isomorphic if a permutation applied to the rows, columns and symbols of L and S maps (L,S) to (L',S') or (L'',S') (where L'' is the transpose of L'). %D A166488 A.P. Burger, M.P. Kidd and J.H. van Vuuren, Enumeration of self-orthogonal Latin squares with symmetric orthogonal mates, Submitted to LitNet Akademies (Natuurwetenskappe) %Y A166488 Cf. A166487, A166489, A144690 %K A166488 hard,more,nonn %O A166488 4,1 %A A166488 _Martin P Kidd_, Oct 21 2009 %E A166488 Class name and definition corrected by _Martin P Kidd_, Nov 01 2010