Dedekind numbers: number of monotone Boolean functions or antichains of subsets of an n-set containing at least one nonempty set.

A007153

Dedekind numbers: number of monotone Boolean functions or antichains of subsets of an n-set containing at least one nonempty set.

Terms

    a(0) =0a(1) =1a(2) =4a(3) =18a(4) =166a(5) =7579a(6) =7828352

External references