A160626 Denominator of Laguerre(n, 3).

1, 1, 2, 1, 8, 20, 80, 280, 4480, 2240, 44800, 246400, 1971200, 12812800, 358758400, 81536000, 28700672000, 243955712000, 88711168000, 9270317056000, 370812682240000, 117985853440000, 3359126650880000, 656709260247040000

Offset

0,3

Links

G. C. Greubel, Table of n, a(n) for n = 0..490

Mathematica

Denominator[Table[LaguerreL[n, 3], {n, 0, 50}]] (* G. C. Greubel, May 06 2018 *)

Prog

(PARI) for(n=0, 30, print1(denominator(sum(k=0, n, binomial(n, k)*((-3)^k/k!))), ", ")) \\ G. C. Greubel, May 06 2018
(Magma) [Denominator((&+[Binomial(n, k)*((-3)^k/Factorial(k)): k in [0..n]])): n in [0..30]]; // G. C. Greubel, May 06 2018

Crossrefs

For numerators see A160625.

Sequence in context: A009828 A084222 A160602 * A052312 A110742 A252355

Adjacent sequences: A160623 A160624 A160625 * A160627 A160628 A160629

Keyword

nonn,frac

Author

N. J. A. Sloane, Nov 14 2009

Status

approved