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 A387236 #8 Sep 01 2025 23:05:43 %S A387236 1,0,0,4,5,0,8,16,15,75 %N A387236 Minimum number of diagonal transversals in an extended self-orthogonal diagonal Latin square of order n. %C A387236 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 A387236 Eduard I. Vatutin, <a href="https://vk.com/wall162891802_2937">About the properties of ESODLS of orders 1-10</a> (in Russian). %H A387236 Eduard I. Vatutin, <a href="/A387236/a387236.txt">Proving list (best known examples)</a>. %H A387236 <a href="/index/La#Latin">Index entries for sequences related to Latin squares and rectangles</a>. %Y A387236 Cf. A287647, A287648, A309210, A309598, A309599, A354068, A360220. %K A387236 nonn,more,hard,new %O A387236 1,4 %A A387236 _Eduard I. Vatutin_, Aug 23 2025