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

A201470

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

Terms

    a(0) =1a(1) =2a(2) =12a(3) =126a(4) =1928a(5) =39050a(6) =987852a(7) =30028670a(8) =1067161104a(9) =43439950098

External references