OFFSET
1,2
LINKS
Seiichi Manyama, Table of n, a(n) for n = 1..386
N. J. A. Sloane, Transforms
FORMULA
Product_{k>=1} 1/(1-x^k)^{a(k)} = Sum_{n>=0} (-n * x)^n.
a(n) ~ (-1)^n * n^n. - Vaclav Kotesovec, Oct 09 2019
EXAMPLE
(1-x) * (1-x^2)^(-4) * (1-x^3)^23 * (1-x^4)^(-223) * ... = 1 - x + 4*x^2 - 27*x^3 + 256*x^4 - ... .
CROSSREFS
KEYWORD
sign
AUTHOR
Seiichi Manyama, Jun 10 2018
STATUS
approved