login
A294464
E.g.f.: Product_{k>0} (1+k*x^k)^(1/k).
1
1, 1, 2, 12, 36, 300, 2520, 20160, 75600, 2192400, 30996000, 276091200, 2165486400, 19070251200, 968042275200, 41954552640000, 190974944160000, 230641066656000, 95607669148992000, -2052972258809472000, 22839078791168640000, 5074390517301705600000
OFFSET
0,3
FORMULA
E.g.f.: exp(Sum_{k>=1} Sum_{j>=1} (-1)^(k+1)*j^(k-1)*x^(j*k)/k). - Ilya Gutkovskiy, May 28 2018
PROG
(PARI) N=66; x='x+O('x^N); Vec(serlaplace(prod(k=1, N, (1+k*x^k)^(1/k))))
CROSSREFS
KEYWORD
sign
AUTHOR
Seiichi Manyama, Oct 31 2017
STATUS
approved