G.f.: A(x) = x + x*ITERATE^2(x + x*ITERATE^4(x + x*ITERATE^8(x + x*ITERATE^16(x + ...)))), where ITERATE^n(F(x)) denotes the n-th iteration of F(x), and the nesting of iterations continue indefinitely.

A212491

G.f.: A(x) = x + x*ITERATE^2(x + x*ITERATE^4(x + x*ITERATE^8(x + x*ITERATE^16(x + ...)))), where ITERATE^n(F(x)) denotes the n-th iteration of F(x), and the nesting of iterations continue indefinitely.

Terms

    a(0) =1a(1) =1a(2) =2a(3) =10a(4) =109a(5) =2344a(6) =95526a(7) =7321508a(8) =1062894966a(9) =295821381776

External references