352066domain: NAppears in sequencesDirichlet g.f.: Product_{k>=2} 1 / (1 - k^(-s))^binomial(k+5,6).at n=21A344206Expansion of 1/(g^2 * (2 - g^2)), where g = 1+x*g^3 is the g.f. of A001764.at n=8A391514