129086domain: NAppears in sequencesG.f. C(x) satisfies: C(x) = 1 + 2*x*A(x)*B(x) where A(x) = B(x)*C(x) and B(x) = 1 + x*A(x)*C(x).at n=7A258315Trajectory of 34 under the "multiply with zero" rules explained in the Comments section.at n=3A365993