OFFSET
0,3
FORMULA
G.f.: g(g(x) - 1), where g(x) = g.f. of A022629.
MATHEMATICA
nmax = 27; CoefficientList[Series[Product[(1 + j (-1 + Product[(1 + k x^k), {k, 1, nmax}])^j), {j, 1, nmax}], {x, 0, nmax}], x]
CROSSREFS
KEYWORD
nonn
AUTHOR
Ilya Gutkovskiy, Apr 15 2019
STATUS
approved