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 A172537 #6 Apr 11 2017 16:18:58 %S A172537 0,0,0,0,0,0,0,0,0,0,0,0,0,1,1307674368000,36574751938491748341360000, %T A172537 665825560532772251175492202972938240000, %U A172537 10431401634793817906193873163767479249710797568200000 %N A172537 Number of n X n 0..1 arrays with row sums 14 and column sums 14. %H A172537 R. H. Hardin, <a href="/A172537/b172537.txt">Table of n, a(n) for n=1..19</a> %Y A172537 Column k=14 of A008300. %K A172537 nonn %O A172537 1,15 %A A172537 _R. H. Hardin_, Feb 06 2010