OFFSET
0,2
LINKS
Delbert L. Johnson, Table of n, a(n) for n = 0..250
FORMULA
From Amiram Eldar, Sep 27 2022: (Start)
Sum_{n>=0} 1/a(n) = 720*BesselI(6,2).
Sum_{n>=0} (-1)^n/a(n) = 720*BesselJ(6,2). (End)
a(n) = 1/([x^n] hypergeom([], [7], x)).- Peter Luschny, Sep 13 2024
MAPLE
f := n->n!*(n+6)!/6!;
MATHEMATICA
Table[n! * (n + 6)!/6!, {n, 0, 15}] (* Amiram Eldar, Sep 27 2022 *)
PROG
(PARI) a(n)=n!^2*binomial(n+6, 6) \\ Charles R Greathouse IV, Oct 23 2023
CROSSREFS
KEYWORD
nonn
AUTHOR
STATUS
approved