-21702domain: ZAppears in sequencesLet F(x) = 1 + x + 4x^2 + 9x^3 + ... = g.f. for A002835 (solid partitions restricted to two planes) and write F(x) = 1/Product_{n>=1} (1-x^n)^a(n).at n=28A080207G.f. A(x) satisfies A(x^2)^3/A(x^4)^3 = 1 + (A(x)/A(x^4) - 1)^2.at n=37A376229