E.g.f.: Limit_{N->oo} [ Sum_{n>=0} (N + n)^(2*n) * (x/N)^n/n! ]^(1/N).

A266481

E.g.f.: Limit_{N->oo} [ Sum_{n>=0} (N + n)^(2*n) * (x/N)^n/n! ]^(1/N).

Terms

    a(0) =1a(1) =1a(2) =5a(3) =55a(4) =993a(5) =25501a(6) =857773a(7) =35850795a(8) =1795564865a(9) =104972371417

External references