OFFSET
0,3
LINKS
Vaclav Kotesovec, Table of n, a(n) for n = 0..300
FORMULA
EXAMPLE
E.g.f.: A(x) = 1 + x + 3*x^2/2! + 10*x^3/3! + 50*x^4/4! + 261*x^5/5! +...
such that
A(x) = 1/((1-x) * (1-x^2)^(1/2) * (1-x^3)^(1/3!) * (1-x^4)^(1/4!) *...).
PROG
(PARI) {a(n)=n!*polcoeff(prod(m=1, n, 1/(1-x^m+x*O(x^n))^(1/m!)), n)}
for(n=0, 21, print1(a(n), ", "))
CROSSREFS
KEYWORD
nonn
AUTHOR
Paul D. Hanna, Mar 14 2012
STATUS
approved