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 A086641 #4 Jul 14 2020 23:49:24 %S A086641 8,-576,-13824,-14665728,13177872384 %N A086641 Permanents of the character tables that appear in A085805. %Y A086641 Cf. A085805. %K A086641 sign,more %O A086641 0,1 %A A086641 Yuval Dekel (dekelyuval(AT)hotmail.com), Jul 26 2003