E.g.f. A(x) = F(x)^2, where F(F(x)) = sin(x).

A280795

E.g.f. A(x) = F(x)^2, where F(F(x)) = sin(x).

Terms

    a(0) =2a(1) =-4a(2) =-4a(3) =-64a(4) =-1392a(5) =-36048a(6) =-68288a(7) =217764736a(8) =45152039424

External references