E.g.f.: Log( Sum_{n>=0} n^(2*n) * x^n/n! ).

A266519

E.g.f.: Log( Sum_{n>=0} n^(2*n) * x^n/n! ).

Terms

    a(0) =1a(1) =15a(2) =683a(3) =62038a(4) =9342629a(5) =2100483216a(6) =658746323647

External references