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

A300489

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

Terms

    a(0) =0a(1) =1a(2) =5a(3) =65a(4) =1766a(5) =83674a(6) =6124584a(7) =639826452a(8) =90328291248

External references