A020063 - OEIS

A020063

Integer part of Gamma(n+1/10)/Gamma(1/10).

1, 0, 0, 0, 0, 2, 14, 91, 648, 5252, 47801, 482796, 5359035, 64844332, 849460756, 11977396665, 180858689641, 2911824903229, 49792205845228, 901238925798638, 17213663482753993, 345994636003355264, 7300486819670796087

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OFFSET

0,6

LINKS

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

MAPLE

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

seq(trunc(pochhammer(1/10, n)), n = 0..25); # G. C. Greubel, Nov 13 2019

MATHEMATICA

IntegerPart[Pochhammer[1/10, Range[0, 25]]] (* G. C. Greubel, Nov 13 2019 *)

PROG

(PARI) P(n, x) = gamma(x+n)/gamma(x);

vector(26, n, truncate(P(n-1, 1/10)) ) \\ G. C. Greubel, Nov 13 2019

(Magma) [Truncate(Gamma(n+1/10)/Gamma(1/10)): n in [0..25]]; // G. C. Greubel, Nov 13 2019

(Sage) [int(rising_factorial(1/10, n)) for n in (0..25)] # G. C. Greubel, Nov 13 2019

CROSSREFS

Cf. A020018, A020108.

Sequence in context: A081959 A002464 A282051 * A323561 A288470 A351857

Adjacent sequences: A020060 A020061 A020062 * A020064 A020065 A020066

KEYWORD

nonn

AUTHOR

Simon Plouffe

STATUS

approved