a(n) = n! * [x^n] 1/(1 + n - exp(x)*(exp(n*x) - 1)/(exp(x) - 1)).

A319508

a(n) = n! * [x^n] 1/(1 + n - exp(x)*(exp(n*x) - 1)/(exp(x) - 1)).

Terms

    a(0) =1a(1) =1a(2) =23a(3) =1836a(4) =361754a(5) =143195025a(6) =99986786773

External references