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 A372923 #14 Sep 20 2024 06:34:55 %S A372923 1,0,4,32,6144,1152000,45984153600000 %N A372923 Number of diagonalized cyclic diagonal Latin squares of order 2n+1 with the first row in order. %C A372923 See Comments in A372922. %H A372923 Eduard I. Vatutin, <a href="http://evatutin.narod.ru/evatutin_dls_spec_types_list.pdf">Special types of diagonal Latin squares</a>, Cloud and distributed computing systems in electronic control conference, within the National supercomputing forum (NSCF - 2022). Pereslavl-Zalessky, 2023. pp. 9-18. (in Russian) %H A372923 Eduard I. Vatutin, <a href="https://vk.com/wall162891802_2443">About the different types of cyclic diagonal Latin squares</a> (in Russian). %H A372923 E. Vatutin, A. Belyshev, N. Nikitina, M. Manzuk, A. Albertian, I. Kurochkin, A. Kripachev, and A. Pykhtin, <a href="https://doi.org/10.1007/978-3-031-49435-2_4">Diagonalization and Canonization of Latin Squares</a>, Lecture Notes in Computer Science, Vol. 14389, Springer, Cham., 2023. pp. 48-61. %H A372923 <a href="/index/La#Latin">Index entries for sequences related to Latin squares and rectangles</a>. %F A372923 a(n) = A372922(n) / (2n+1)!. - _Eduard I. Vatutin_, Sep 08 2024 %Y A372923 Cf. A071607, A123565, A338522, A372922, A375475. %K A372923 nonn,more,hard %O A372923 0,3 %A A372923 _Eduard I. Vatutin_, May 16 2024