G.f. satisfies: A(x - 5*A(x)^2) = x + A(x)^2.

A277305

G.f. satisfies: A(x - 5*A(x)^2) = x + A(x)^2.

Terms

    a(0) =1a(1) =6a(2) =132a(3) =4350a(4) =176964a(5) =8235252a(6) =421814232a(7) =23252672574

External references