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 A020069 #20 Sep 08 2022 08:44:44 %S A020069 1,0,0,0,0,3,17,104,740,6005,54717,553253,6147263,74450193,976124760, %T A020069 13774204958,208143541601,3353423725801,57380805974819, %U A020069 1039230152655057,19860842917407765,399423618672311729 %N A020069 Integer part of Gamma(n+1/9)/Gamma(1/9). %H A020069 G. C. Greubel, <a href="/A020069/b020069.txt">Table of n, a(n) for n = 0..445</a> %p A020069 Digits := 64:f := proc(n,x) trunc(GAMMA(n+x)/GAMMA(x)); end; %p A020069 seq(trunc(pochhammer(1/9,n)), n = 0..25); # _G. C. Greubel_, Nov 13 2019 %t A020069 IntegerPart[Pochhammer[1/9, Range[0, 25]]] (* _G. C. Greubel_, Nov 13 2019 *) %o A020069 (PARI) P(n,x) = gamma(x+n)/gamma(x); %o A020069 vector(26, n, truncate(P(n-1, 1/9)) ) \\ _G. C. Greubel_, Nov 13 2019 %o A020069 (Magma) [Truncate(Gamma(n+1/9)/Gamma(1/9)): n in [0..25]]; // _G. C. Greubel_, Nov 13 2019 %o A020069 (Sage) [int(rising_factorial(1/9, n)) for n in (0..25)] # _G. C. Greubel_, Nov 13 2019 %Y A020069 Cf. A020064, A020065, A020066, A020067, A020068. %Y A020069 Cf. A020024, A020114. %K A020069 nonn %O A020069 0,6 %A A020069 _Simon Plouffe_