G.f. satisfies A(x) = 1 + x*A(2*x)^2.

A135867

G.f. satisfies A(x) = 1 + x*A(2*x)^2.

Terms

    a(0) =1a(1) =1a(2) =4a(3) =36a(4) =640a(5) =21888a(6) =1451008a(7) =188941312a(8) =48768745472

External references