A160608 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

Other ways to Give

A160608

Denominator of Laguerre(n, -6).

1, 1, 1, 1, 1, 5, 5, 35, 5, 35, 175, 1925, 275, 25025, 175175, 125125, 875875, 14889875, 14889875, 282625, 1414538125, 9901766875, 2222845625, 2505147019375, 2505147019375, 62628675484375, 116310397328125, 814172781296875

(list; graph; refs; listen; history; text; internal format)

OFFSET

0,6

LINKS

G. C. Greubel, Table of n, a(n) for n = 0..500

MATHEMATICA

Denominator[Table[LaguerreL[n, -6], {n, 0, 50}]] (* G. C. Greubel, May 12 2018 *)

PROG

(PARI) for(n=0, 30, print1(denominator(sum(k=0, n, binomial(n, k)*(6^k/k!))), ", ")) \\ G. C. Greubel, May 12 2018

(PARI) a(n) = denominator(pollaguerre(n, 0, -6)); \\ Michel Marcus, Feb 05 2021

(Magma) [Denominator((&+[Binomial(n, k)*(6^k/Factorial(k)): k in [0..n]])): n in [0..30]]; // G. C. Greubel, May 12 2018

CROSSREFS