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 A266168 #22 Dec 10 2021 11:08:51 %S A266168 1,0,1,1,3,0,34,45927,2203310919 %N A266168 Number of isotopism classes of ordered pairs of orthogonal Latin squares. %C A266168 The following operations produce things that are counted as equivalent: simultaneous permutation of the rows or columns of both squares; permutation of the symbols within either square. %H A266168 J. Egan and I. M. Wanless, <a href="http://dx.doi.org/10.1090/mcom/3010">Enumeration of MOLS of small order</a>, Mathematics of Computation 85, 2016, 799-824. %H A266168 Ian Wanless, <a href="http://users.monash.edu.au/~iwanless/data/MOLS/">Data on MOLS</a> %Y A266168 Cf. A129732, A266166, A266167. %K A266168 nonn,more %O A266168 1,5 %A A266168 _Ian Wanless_, Dec 22 2015