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 A119008 #8 Jun 17 2025 21:56:34 %S A119008 1,1,4,268,9456,301306,24846368,8946957244,4175660906560, %T A119008 2421067614753916 %N A119008 Number of n X n real symmetric (0,1)-matrices with determinant = 1. %Y A119008 Cf. A086264, A086899, A086900, A086906, A118998, A119002, A119009. %K A119008 nonn,more %O A119008 1,3 %A A119008 _Giovanni Resta_, May 08 2006 %E A119008 a(8)-a(10) from _Max Alekseyev_, Jun 17 2025