E.g.f. A(x) satisfies: A'(x) = 1 + A(A(A(x))).

A193098

E.g.f. A(x) satisfies: A'(x) = 1 + A(A(A(x))).

Terms

    a(0) =1a(1) =1a(2) =3a(3) =18a(4) =171a(5) =2283a(6) =39942a(7) =874944a(8) =23243829a(9) =731486637a(10) =26782956144

External references