OFFSET
1,2
LINKS
Vaclav Kotesovec, Table of n, a(n) for n = 1..364
FORMULA
a(n) = [x^n] (1/n)*Log( Sum_{m=0..n} (n-1+m)!/(n-1)!*x^m ) for n>=1.
a(n) ~ n! * 4^(n-1) / (sqrt(Pi) * n^(3/2)). - Vaclav Kotesovec, Jul 27 2015
PROG
(PARI) {a(n)=if(n<1, 0, (1/n)*polcoeff(log(sum(m=0, n, (n-1+m)!/(n-1)!*x^m) + x*O(x^n)), n))}
CROSSREFS
KEYWORD
nonn
AUTHOR
Paul D. Hanna, Aug 06 2005
EXTENSIONS
PARI program fixed by Vaclav Kotesovec, Jul 27 2015
STATUS
approved