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 A264603 #32 Mar 16 2023 10:28:24 %S A264603 1,1,1,12,192,145164,1524901344 %N A264603 Number of structurally distinct Latin squares of order n. %C A264603 "Structurally distinct" means that the squares cannot be made identical by means of rotation, reflection, and/or permutation of the symbols. For other notions of distinctness, see A000479 and A040082. %D A264603 Hendrik Willem Barink, Email to N. J. A. Sloane, Nov 22 2015 %H A264603 Hendrik Willem Barink, <a href="http://www.latinsquares5x5.wordpress.com">How many structurally different latin squares do exist?</a> %H A264603 Gabriel Crudele, Peter Dukes, and Jonathan A. Noel, <a href="https://arxiv.org/abs/2303.04776">Six Permutation Patterns Force Quasirandomness</a>, arXiv:2303.04776 [math.CO], 2023. %H A264603 Mathematics Stack Exchange, <a href="https://math.stackexchange.com/q/1381193">How many structurally different latin squares of order 5 exist?</a> %H A264603 Mathematics Stack Exchange, <a href="https://math.stackexchange.com/q/2143780">How many structurally distinct Latin squares are there of order 7?</a> %H A264603 <a href="/index/La#Latin">Index entries for sequences related to Latin squares and rectangles</a> %Y A264603 Cf. A000479, A040082. %K A264603 nonn,more %O A264603 1,4 %A A264603 _N. J. A. Sloane_, Nov 23 2015 %E A264603 a(7) from MSE link, added by _Max Alekseyev_, Sep 01 2017