16736896

Appears in sequences

• a(n) = n^n - n!.at n=8A036679
• Number of non-invertible functions from {0,1}^n to {0,1}^n.at n=3A057157
• 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=35A101030
• 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=35A347034