Number of matrices with n columns whose rows do not cover each other; ordered antichains of subsets of an n-set.
A037843
Number of matrices with n columns whose rows do not cover each other; ordered antichains of subsets of an n-set.
Terms
- a(0) =2a(1) =3a(2) =7a(3) =39a(4) =2551a(5) =22928343
External references
- oeis: A037843