-124124domain: ZAppears in sequencesG.f.: Product_{n>=1} (1 - Lucas(n)*x^n + (-1)^n*x^(2*n))^3 where Lucas(n) = A000204(n).at n=27A203861G.f. A(x) satisfies: A(x)^16 = A(x^2)^8 + 16*x.at n=6A228927