A020021 Nearest integer to Gamma(n + 5/9)/Gamma(5/9).

1, 1, 1, 2, 8, 36, 199, 1303, 9844, 84217, 804738, 8494461, 98158214, 1232430908, 16706285647, 243169268857, 3782633071104, 62623591954943, 1099391947653438, 20399828362013787, 398929976857158503

Offset

0,4

Comments

a(n) equals A020066(n) or A020111(n). - R. J. Mathar, May 18 2007

Links

G. C. Greubel, Table of n, a(n) for n = 0..445

Maple

Digits := 64:f := proc(n, x) round(GAMMA(n+x)/GAMMA(x)); end;

Mathematica

Table[Round[Gamma[n + 5/9]/Gamma[5/9]], {n, 0, 50}] (* G. C. Greubel, Feb 03 2018 *)

Prog

(PARI) for(n=0, 30, print1(round(gamma(n+5/9)/gamma(5/9)), ", ")) \\ G. C. Greubel, Feb 03 2018
(Magma) [Round(Gamma(n +5/9)/Gamma(5/9)): n in [0..30]]; // G. C. Greubel, Feb 03 2018

Crossrefs

Cf. A020066, A020111.

Sequence in context: A052582 A367920 A222468 * A213076 A233744 A222469

Adjacent sequences: A020018 A020019 A020020 * A020022 A020023 A020024

Keyword

nonn

Author

Simon Plouffe

Status

approved