G.f. A(x) satisfies: A(x) = 1/((1-x*B(x)^2)*(1-x*C(x)^3)) such that B(x) = 1/((1-x*A(x))*(1-x*C(x)^3)) and C(x) = 1/((1-x*A(x))*(1-x*B(x)^2)) are the g.f.s of A341955 and A341956, respectively.

A341954

G.f. A(x) satisfies: A(x) = 1/((1-x*B(x)^2)*(1-x*C(x)^3)) such that B(x) = 1/((1-x*A(x))*(1-x*C(x)^3)) and C(x) = 1/((1-x*A(x))*(1-x*B(x)^2)) are the g.f.s of A341955 and A341956, respectively.

Terms

    a(0) =1a(1) =2a(2) =13a(3) =99a(4) =839a(5) =7606a(6) =72190a(7) =708294a(8) =7126305a(9) =73125017a(10) =762337935a(11) =8051642336a(12) =85971106450a(13) =926481778388

External references