Number of 5-element ordered antichain covers of an unlabeled n-element set.

A056093

Number of 5-element ordered antichain covers of an unlabeled n-element set.

Terms

    a(0) =30a(1) =2176a(2) =54036a(3) =709956a(4) =6290051a(5) =42606671a(6) =237197942a(7) =1135834242a(8) =4823607212a(9) =18563958502a(10) =65783057592a(11) =217240417628a(12) =674884181813

External references