387057609

Appears in sequences

• a(n) = n^n - n!.at n=9A036679
• Triangle read by rows: T(n,k) = number of functions from an n-element set into but not onto a k-element set.at n=44A101030
• Triangle read by columns: T(n,k) is the number of functions from an n-element set to a k-element set that are not one-to-one, k>=n>=1.at n=44A347034