Number of connected ordered 5-element antichains on an unlabeled n-set.

A092617

Number of connected ordered 5-element antichains on an unlabeled n-set.

Terms

    a(0) =0a(1) =0a(2) =0a(3) =0a(4) =30a(5) =2065a(6) =51926a(7) =691686a(8) =6185741a(9) =42149926a(10) =235537736a(11) =1130582442a(12) =4808698802a(13) =18525169347a(14) =65689136552a(15) =217026359262a(16) =674420929513

External references