-1015145068domain: ZAppears in sequencesExpansion of g.f. A(x) = G( x*(1 + 2*x)*G(x) )^(1/2) = G( x*(1 + 3*x)*G(x)^2 )^(1/3), where G(x) is the g.f. of A370537.at n=21A370538