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 A172944 #10 Apr 27 2015 11:27:19 %S A172944 1,1,9,1035,981541,4855258305,94459713879600,5945968652327831925, %T A172944 1046591482728407939338275,459761347800901006933211075259, %U A172944 460129061613105910803354676484897475 %N A172944 Number of n X n 0..8 arrays with row sums 8 and column sums 8. %H A172944 R. H. Hardin, <a href="/A172944/b172944.txt">Table of n, a(n) for n = 0..17</a> %Y A172944 Column k=8 of A257493. %K A172944 nonn %O A172944 0,3 %A A172944 _R. H. Hardin_, Feb 06 2010