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 A020019 #21 Sep 23 2022 17:10:03 %S A020019 1,1,2,5,19,92,543,3741,29513,262341,2594262,28248627,335844793, %T A020019 4328666215,60120364101,895125421053,14222548356739,240203038913808, %U A020019 4296965473902563,81164903395937306,1614279745319197539,33720510235556570814 %N A020019 Nearest integer to Gamma(n + 8/9)/Gamma(8/9). %C A020019 Gamma(n + 8/9)/Gamma(8/9) = 1, 8/9, 136/81, 3536/729, 123760/6561, 5445440/59049, 288608320/531441, 17893715840/4782969, ... %H A020019 G. C. Greubel, <a href="/A020019/b020019.txt">Table of n, a(n) for n = 0..445</a> %p A020019 Digits := 64:f := proc(n,x) round(GAMMA(n+x)/GAMMA(x)); end; %t A020019 f[n_] := Round[Gamma[n + 8/9]/Gamma[8/9]]; Array[f, 22, 0] (* _Robert G. Wilson v_, Sep 13 2013 *) %o A020019 (PARI) for(n=0,30, print1(round(gamma(n+8/9)/gamma(8/9)), ", ")) \\ _G. C. Greubel_, Feb 03 2018 %o A020019 (Magma) [Round(Gamma(n +8/9)/Gamma(8/9)): n in [0..30]]; // _G. C. Greubel_, Feb 03 2018 %Y A020019 Cf. A049211, A020064, A020109. %K A020019 nonn %O A020019 0,3 %A A020019 _Simon Plouffe_