Number of non-invertible functions from {0,1}^n to {0,1}^n.
A057157
Number of non-invertible functions from {0,1}^n to {0,1}^n.
Terms
- a(0) =0a(1) =2a(2) =232a(3) =16736896
External references
- oeis: A057157
A057157
Number of non-invertible functions from {0,1}^n to {0,1}^n.