Dedekind numbers or Dedekind's problem: number of monotone Boolean functions of n variables, number of antichains of subsets of an n-set, number of elements in a free distributive lattice on n generators, number of Sperner families.
A000372
Dedekind numbers or Dedekind's problem: number of monotone Boolean functions of n variables, number of antichains of subsets of an n-set, number of elements in a free distributive lattice on n generators, number of Sperner families.
Terms
- a(0) =2a(1) =3a(2) =6a(3) =20a(4) =168a(5) =7581a(6) =7828354
External references
- oeis: A000372