OFFSET
0,6
FORMULA
G.f.: 1 / Sum_{k>=0} (-x)^A000326(k).
MATHEMATICA
nmax = 53; CoefficientList[Series[1/Sum[(-x)^(k (3 k - 1)/2), {k, 0, nmax}], {x, 0, nmax}], x]
CROSSREFS
KEYWORD
nonn
AUTHOR
Ilya Gutkovskiy, Jun 25 2019
STATUS
approved