G.f. A(x) satisfies A(x) = Sum_{k>=0} x^k * A(k^2*x).

A385543

G.f. A(x) satisfies A(x) = Sum_{k>=0} x^k * A(k^2*x).

Terms

    a(0) =1a(1) =1a(2) =2a(3) =7a(4) =49a(5) =676a(6) =18861a(7) =1062533a(8) =121557594a(9) =28281916427

External references