G.f.: A(x) = x + x*ITERATE^2(x + 2*x*ITERATE^2(x + 3*x*ITERATE^2(x + 4*x*ITERATE^2(x + ...)))), where ITERATE^2(F(x)) = F(F(x)), and the nested iterations continue indefinitely.

A195193

G.f.: A(x) = x + x*ITERATE^2(x + 2*x*ITERATE^2(x + 3*x*ITERATE^2(x + 4*x*ITERATE^2(x + ...)))), where ITERATE^2(F(x)) = F(F(x)), and the nested iterations continue indefinitely.

Terms

    a(0) =1a(1) =1a(2) =4a(3) =32a(4) =392a(5) =6492a(6) =135876a(7) =3450048a(8) =103437240a(9) =3592136052a(10) =142420085352

External references