OFFSET
1,2
LINKS
Seiichi Manyama, Table of n, a(n) for n = 1..449
N. J. A. Sloane, Transforms
FORMULA
Product_{k>=1} 1/(1-x^k)^{a(k)} = Sum_{n>=0} (-1)^n * n! * x^n.
a(n) ~ (-1)^n * n!. - Vaclav Kotesovec, Oct 09 2019
EXAMPLE
(1-x) * (1-x^2)^(-2) * (1-x^3)^4 * (1-x^4)^(-17) * ... = 1 - x + 2*x^2 - 6*x^3 + 24*x^4 - ... .
CROSSREFS
KEYWORD
sign
AUTHOR
Seiichi Manyama, Jun 10 2018
STATUS
approved