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 A085806 #14 Dec 17 2016 03:52:21 %S A085806 0,8,384,50692096,6829323892021002240 %N A085806 Permanent of the character table of the elementary abelian group (C_2)^n. %C A085806 a(n) is also the permanent of the Sylvester Hadamard matrix. %D A085806 I. M. Wanless, Permanents, Chapter 43 in Handbook of Linear Algebra (2nd ed.), CRC, (2014). %F A085806 Ryser's formula or Glynn's formula for computing the permanent. %Y A085806 Cf. A061301, A096204, A096205. %K A085806 nonn,hard %O A085806 1,2 %A A085806 Yuval Dekel (dekelyuval(AT)hotmail.com), Jul 24 2003 %E A085806 a(5) from _Ferenc Szollosi_ and _Ian Wanless_, Jul 22 2014