OFFSET
0,4
LINKS
Seiichi Manyama, Table of n, a(n) for n = 0..440
PROG
(PARI) N=66; x='x+O('x^N); Vec(serlaplace(exp(1/((1+x)*(1+x^2)*(1+x^3))-1)))
CROSSREFS
KEYWORD
sign
AUTHOR
Seiichi Manyama, Oct 27 2017
STATUS
approved