a(n) = n^n-n^(n-1)-n^(n-2)-n^(n-3)-...-n^3-n^2-n.

A117667

a(n) = n^n-n^(n-1)-n^(n-2)-n^(n-3)-...-n^3-n^2-n.

Terms

    a(0) =1a(1) =2a(2) =15a(3) =172a(4) =2345a(5) =37326a(6) =686287a(7) =14380472a(8) =338992929a(9) =8888888890a(10) =256780503551

External references