A020050 a(n) = floor(Gamma(n+10/11)/Gamma(10/11)).

1, 0, 1, 5, 19, 96, 572, 3955, 31285, 278720, 2761871, 30129503, 358814994, 4631975383, 64426566694, 960541539816, 15281342678896, 258393612570434, 4627594697852333, 87503608832116847, 1742117303112144502

Offset

0,4

Links

G. C. Greubel, Table of n, a(n) for n = 0..449

Maple

Digits := 64:f := proc(n, x) trunc(GAMMA(n+x)/GAMMA(x)); end;
seq(floor(pochhammer(10/11, n)), n = 0..25); # G. C. Greubel, Dec 01 2019

Mathematica

Floor[Pochhammer[10/11, Range[0, 25]]] (* G. C. Greubel, Dec 01 2019 *)

Prog

(PARI) x=10/11; vector(26, n, gamma(n-1+x)\gamma(x) ) \\ G. C. Greubel, Dec 01 2019
(Magma) [Floor(Gamma(n+10/11)/Gamma(10/11)): n in [0..25]]; // G. C. Greubel, Dec 01 2019
(Sage) [floor(rising_factorial(10/11, n)) for n in (0..25)] # G. C. Greubel, Dec 01 2019

Crossrefs

Cf. A020005, A020095.

Sequence in context: A149809 A263245 A346199 * A106958 A331336 A361278

Adjacent sequences: A020047 A020048 A020049 * A020051 A020052 A020053

Keyword

nonn

Author

Simon Plouffe

Status

approved