A020051 a(n) = floor(Gamma(n+9/11)/Gamma(9/11)).

1, 0, 1, 4, 16, 77, 448, 3059, 23919, 210929, 2070940, 22403814, 264772349, 3393900115, 46897528866, 694936109571, 10992625733214, 184875978240420, 3294153794102034, 61989985034465559, 1228528794319408360

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(9/11, n)), n = 0..25); # G. C. Greubel, Nov 30 2019

Mathematica

Floor[Pochhammer[9/11, Range[0, 25]]] (* G. C. Greubel, Nov 30 2019 *)

Prog

(PARI) x=9/11; vector(26, n, gamma(n-1+x)\gamma(x) ) \\ G. C. Greubel, Nov 30 2019
(Magma) [Floor(Gamma(n+9/11)/Gamma(9/11)): n in [0..25]]; // G. C. Greubel, Nov 30 2019
(Sage) [floor(rising_factorial(9/11, n)) for n in (0..25)] # G. C. Greubel, Nov 30 2019

Crossrefs

Cf. A020006, A020096.

Sequence in context: A367261 A364474 A159926 * A020006 A207653 A204208

Adjacent sequences: A020048 A020049 A020050 * A020052 A020053 A020054

Keyword

nonn

Author

Simon Plouffe

Status

approved