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 A020111 #6 Mar 30 2012 18:36:22 %S A020111 1,1,1,3,8,36,199,1303,9844,84217,804739,8494461,98158214,1232430909, %T A020111 16706285647,243169268857,3782633071104,62623591954943, %U A020111 1099391947653438,20399828362013788,398929976857158504 %N A020111 Ceiling of GAMMA(n+5/9)/GAMMA(5/9). %p A020111 Digits := 64:f := proc(n,x) ceil(GAMMA(n+x)/GAMMA(x)); end; %K A020111 nonn %O A020111 0,4 %A A020111 _Simon Plouffe_