E.g.f. equals the limit of the average of all permutations of the compositions of the functions x*exp(x^k), for k=1..n, as n increases.

A278332

E.g.f. equals the limit of the average of all permutations of the compositions of the functions x*exp(x^k), for k=1..n, as n increases.

Terms

    a(0) =1a(1) =2a(2) =9a(3) =88a(4) =905a(5) =12666a(6) =220297a(7) =4506440a(8) =104707521a(9) =2758506850

External references