OFFSET
1,2
LINKS
Seiichi Manyama, Table of n, a(n) for n = 1..232
FORMULA
a(n) ~ n! * n^n. - Vaclav Kotesovec, Mar 02 2019
MATHEMATICA
nmax = 20; Rest[CoefficientList[Series[Log[1 + Sum[(k*x)^k, {k, 1, nmax}]], {x, 0, nmax}], x] * Range[0, nmax]!] (* Vaclav Kotesovec, Mar 02 2019 *)
PROG
(PARI) N=20; x='x+O('x^N); Vec(serlaplace(log(sum(k=0, N, (k*x)^k))))
CROSSREFS
KEYWORD
nonn
AUTHOR
Seiichi Manyama, Mar 01 2019
STATUS
approved