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 A008552 #10 Apr 26 2015 17:08:40 %S A008552 1,5040,9135630,4662857360,936670590450,94161778046406, %T A008552 5562418293759978,215717608046511873,5945968652327831925, %U A008552 123538613356253145400,2023270039486328373811,27046306550096288483238,303378141987182515342992,2920054336492521720572276 %N A008552 Number of 7 X 7 stochastic matrices of integers. %H A008552 Alois P. Heinz, <a href="/A008552/b008552.txt">Table of n, a(n) for n = 0..1000</a> %Y A008552 Row n=7 of A257493. %K A008552 nonn %O A008552 0,2 %A A008552 John Mount (jmount(AT)msri.org) %E A008552 Offset changed to 0 by _Alois P. Heinz_, Apr 26 2015