OFFSET
0,4
FORMULA
E.g.f.: Product_{k>0} exp(x^(4*k-1)).
a(n) ~ exp(sqrt(n) - n - 1/4) * n^(n - 1/4) / 2. - Vaclav Kotesovec, Oct 15 2017
PROG
(PARI) N=66; x='x+O('x^N); Vec(serlaplace(exp(x^3/(1-x^4))))
(PARI) N=66; x='x+O('x^N); Vec(serlaplace(prod(k=1, N, exp(x^(4*k-1)))))
CROSSREFS
KEYWORD
nonn
AUTHOR
Seiichi Manyama, Oct 11 2017
STATUS
approved