E.g.f. exp(sum_{d|M} (exp(d*x)-1)/d), M=14.

A141010

E.g.f. exp(sum_{d|M} (exp(d*x)-1)/d), M=14.

Terms

    a(0) =1a(1) =4a(2) =40a(3) =602a(4) =11384a(5) =253698a(6) =6495616a(7) =187940402a(8) =6055160152a(9) =214444348674

External references