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 A020127 #6 Mar 30 2012 18:36:22 %S A020127 1,1,2,5,16,74,427,2901,22625,199095,1951128,21072176,248651669, %T A020127 3182741352,43921830648,650043093589,10270680878694,172547438762056, %U A020127 3071344409964595,57741274907334371,1143277243165220534 %N A020127 Ceiling of GAMMA(n+4/5)/GAMMA(4/5). %p A020127 Digits := 64:f := proc(n,x) ceil(GAMMA(n+x)/GAMMA(x)); end; %K A020127 nonn %O A020127 0,3 %A A020127 _Simon Plouffe_