E.g.f. A(x) satisfies A(x) = 1 + (1/x^2) * (exp(x^3*A(x)) - 1).

A392959

E.g.f. A(x) satisfies A(x) = 1 + (1/x^2) * (exp(x^3*A(x)) - 1).

Terms

    a(0) =1a(1) =1a(2) =2a(3) =6a(4) =36a(5) =300a(6) =2880a(7) =31080a(8) =389760a(9) =5685120a(10) =93895200a(11) =1714759200a(12) =34288531200a(13) =747813306240

External references