E.g.f. A(x) satisfies A(x) = exp(x) * B(x), where B(x) = 1 + x*B(x)^3 is the g.f. of A001764.

A381984

E.g.f. A(x) satisfies A(x) = exp(x) * B(x), where B(x) = 1 + x*B(x)^3 is the g.f. of A001764.

Terms

    a(0) =1a(1) =2a(2) =9a(3) =94a(4) =1649a(5) =40146a(6) =1246057a(7) =47004014a(8) =2087644449a(9) =106709890114

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