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A316083
Product_{k>=1} (1 + a(k)*x^k) = Sum_{k>=0} (k*x)^k.
3
1, 4, 23, 233, 2800, 42832, 763220, 15761709, 366711200, 9537738596, 273549419552, 8587897407548, 292755986184548, 10773140836162944, 425587704331945152, 17966341563465800813, 807152054953801845760, 38451432814472749509872, 1936082850634342992601636
OFFSET
1,2
LINKS
FORMULA
a(n) ~ n^n. - Vaclav Kotesovec, Jun 18 2019
EXAMPLE
(1+x)*(1+4*x^2)*(1+23*x^3)*(1+233*x^4)* ... = 1 + x + 4*x^2 + 27*x^3 + 256*x^4 + ... .
CROSSREFS
KEYWORD
nonn
AUTHOR
Seiichi Manyama, Jun 23 2018
STATUS
approved