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 A358779 #11 Dec 06 2022 09:57:36 %S A358779 1,0,4,110,5911,652189,86577891 %N A358779 a(n) is the maximal absolute value of the determinant of an n X n symmetric matrix using all the integers from 0 to n*(n + 1)/2 - 1. %F A358779 a(n) = max(abs(A358806(n)), A358807(n)). %Y A358779 Cf. A000217, A351153, A351609. %Y A358779 Cf. A358806 (minimal determinant), A358807 (maximal determinant), A358808 (minimal permanent), A358809 (maximal permanent). %K A358779 nonn,hard,more %O A358779 0,3 %A A358779 _Stefano Spezia_, Dec 05 2022