OFFSET
1,2
LINKS
Seiichi Manyama, Table of n, a(n) for n = 1..386
FORMULA
a(n) ~ n^n. - Vaclav Kotesovec, Jun 18 2019
EXAMPLE
1/((1-x)*(1-3*x^2)*(1-23*x^3)*(1-220*x^4)* ... ) = 1 + x + 4*x^2 + 27*x^3 + 256*x^4 + ... .
CROSSREFS
KEYWORD
nonn
AUTHOR
Seiichi Manyama, Jun 23 2018
STATUS
approved