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 A020129 #6 Mar 30 2012 18:36:22 %S A020129 1,1,1,2,5,21,109,695,5143,43194,406017,4222570,48137292,596902409, %T A020129 7998492274,115178288737,1773745646540,29089428603256,506156057696642, %U A020129 9313271461618196,180677466355392996,3685820313650017112 %N A020129 Ceiling of GAMMA(n+2/5)/GAMMA(2/5). %p A020129 Digits := 64:f := proc(n,x) ceil(GAMMA(n+x)/GAMMA(x)); end; %K A020129 nonn %O A020129 0,4 %A A020129 _Simon Plouffe_