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 A036297 #20 Mar 05 2020 03:18:56 %S A036297 1,1,1,0,1,0,0,0,1,0,0,0,1,0,0,0,5,0,0,0,3,0,0,0,60,0,0,0,487,0,0,0, %T A036297 13710027,0,0,0 %N A036297 Number of Hadamard matrices of order n. %D A036297 See A007299 for references. %H A036297 See A007299 for links. %H A036297 <a href="/index/Ha#Hadamard">Index entries for sequences related to Hadamard matrices</a> %H A036297 <a href="/index/De#determinants">Index entries for sequences related to maximal determinants</a> %Y A036297 A007299 is the main entry for this sequence. Cf. A003432. %K A036297 nonn,nice,hard,more %O A036297 0,17 %A A036297 _N. J. A. Sloane_ %E A036297 a(32) from the H. Kharaghani and B. Tayfeh-Rezaie paper. - _N. J. A. Sloane_, Feb 11 2012