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 A020131 #12 Aug 28 2025 20:40:09 %S A020131 1,1,2,4,14,65,370,2496,19339,169215,1649844,17735823,208395916, %T A020131 2657047924,36534408954,538882532061,8487399879955,142163947989233, %U A020131 2523410076808877,47313938940166439,934450294068287158,19389843601916958526,421729098341693847928,9594336987273535040342 %N A020131 Ceiling of Gamma(n+3/4)/Gamma(3/4). %p A020131 Digits := 64:f := proc(n,x) ceil(GAMMA(n+x)/GAMMA(x)); end; %K A020131 nonn,changed %O A020131 0,3 %A A020131 _Simon Plouffe_