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 A020031 #16 Dec 24 2023 17:52:13 %S A020031 1,1,1,2,8,38,210,1380,10450,89574,857352,9063435,104876887, %T A020031 1318452295,17893281148,260730668151,4059948975491,67279154450986, %U A020031 1182190856781603,21954973054515490,429690186924088871 %N A020031 Nearest integer to Gamma(n + 4/7)/Gamma(4/7). %C A020031 a(n) equals A020121(n) or A020076(n). - _R. J. Mathar_, May 18 2007 %p A020031 Digits := 64:f := proc(n,x) round(GAMMA(n+x)/GAMMA(x)); end; %t A020031 Round[Gamma[Range[0,20]+4/7]/Gamma[4/7]] (* _Harvey P. Dale_, Dec 24 2023 *) %Y A020031 Cf. A020121, A020076, A220609. %K A020031 nonn %O A020031 0,4 %A A020031 _Simon Plouffe_