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 A172637 #7 May 09 2020 21:19:50 %S A172637 1,8953,8710537,30189264889,101471705778601,431222728237019041, %T A172637 1998635481349606292593,10132345044562368521279737, %U A172637 54649595712626140857519780409,310419652143758898175543447421953 %N A172637 Number of n X 10 0..2 arrays with row sums 10 and column sums n. %H A172637 R. H. Hardin, <a href="/A172637/b172637.txt">Table of n, a(n) for n=1..25</a> %Y A172637 Column k=10 of A334549. %K A172637 nonn %O A172637 1,2 %A A172637 _R. H. Hardin_, Feb 06 2010