Number of monotone functions f: 2^X -> 2^X where 2^X is the power set of an n-set X. Here f is monotone means that if A is a subset of B then f(A) is a subset of f(B).
A088322
Number of monotone functions f: 2^X -> 2^X where 2^X is the power set of an n-set X. Here f is monotone means that if A is a subset of B then f(A) is a subset of f(B).
Terms
- a(0) =1a(1) =3a(2) =36a(3) =8000a(4) =796594176
External references
- oeis: A088322