679510980507domain: NAppears in sequencesG.f. B(x) satisfies: B(x) = 1/((1-x*A(x))*(1-x*C(x)^3)) such that A(x) = 1/((1-x*B(x)^2)*(1-x*C(x)^3)) and C(x) = 1/((1-x*A(x))*(1-x*B(x)^2)) are the g.f.s of A341954 and A341956, respectively.at n=13A341955