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 A020125 #6 Mar 30 2012 18:36:22 %S A020125 1,1,2,5,17,81,468,3197,25043,221209,2175217,23564851,278850731, %T A020125 3578584369,49503750433,734305631413,11626505830702,195712848150141, %U A020125 3490212458677515,65732334638426517,1303691303662125906 %N A020125 Ceiling of GAMMA(n+5/6)/GAMMA(5/6). %p A020125 Digits := 64:f := proc(n,x) ceil(GAMMA(n+x)/GAMMA(x)); end; %K A020125 nonn %O A020125 0,3 %A A020125 _Simon Plouffe_