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 A387124 #9 Aug 23 2025 00:03:07 %S A387124 1,0,0,8,15,0,133,384,2241,988 %N A387124 Maximum number of transversals in an extended self-orthogonal diagonal Latin square of order n. %C A387124 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 A387124 Eduard I. Vatutin, <a href="https://vk.com/wall162891802_2937">About the properties of ESODLS of orders 1-10 (in Russian)</a>. %H A387124 Eduard I. Vatutin, <a href="/A387124/a387124.txt">Proving list (best known examples)</a>. %H A387124 <a href="/La#Latin">Index entries for sequences related to Latin squares and rectangles</a>. %Y A387124 Cf. A090741, A091323, A287644, A287645, A309210, A309598, A309599, A357514, A383684, A387187. %K A387124 nonn,new %O A387124 1,4 %A A387124 _Eduard I. Vatutin_, Aug 17 2025