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 A387360 #4 Sep 01 2025 23:05:57 %S A387360 1,0,0,4,5,0,27,96,333,152 %N A387360 Maximum number of diagonal transversals in an extended self-orthogonal diagonal Latin square of order n. %C A387360 A self-orthogonal diagonal Latin square (SODLS) is a diagonal Latin square orthogonal to its transpose. An extended self-orthogonal diagonal Latin square (ESODLS) is a diagonal Latin square that has an orthogonal diagonal Latin square from the same main class. SODLS is a special case of ESODLS. %H A387360 Eduard I. Vatutin, <a href="https://vk.com/wall162891802_2937">About the properties of ESODLS of orders 1-10</a> (in Russian). %H A387360 <a href="/index/La#Latin">Index entries for sequences related to Latin squares and rectangles</a>. %Y A387360 Cf. A287647, A287648, A309210, A309598, A309599, A354068, A360220, A387236. %K A387360 nonn,more,hard,new %O A387360 1,4 %A A387360 _Eduard I. Vatutin_, Aug 27 2025