G.f. B(x) satisfies: B(x) = x + A(B(x))^3 such that A(x) = x + B(A(x))^2, where A(x) is the g.f. of A263532.

A263533

G.f. B(x) satisfies: B(x) = x + A(B(x))^3 such that A(x) = x + B(A(x))^2, where A(x) is the g.f. of A263532.

Terms

    a(0) =1a(1) =0a(2) =1a(3) =3a(4) =12a(5) =55a(6) =276a(7) =1488a(8) =8499a(9) =50925a(10) =317841a(11) =2055474a(12) =13718079a(13) =94189197a(14) =663693860a(15) =4790024805a(16) =35352118896a(17) =266457599124

External references