Number of connected ordered 3-element multiantichains on a labeled n-set.

A094730

Number of connected ordered 3-element multiantichains on a labeled n-set.

Terms

    a(0) =0a(1) =1a(2) =1a(3) =25a(4) =337a(5) =4321a(6) =46681a(7) =437305a(8) =3721537a(9) =29740561a(10) =228000361a(11) =1699890985a(12) =12435686737a(13) =89792976001a(14) =642488104441

External references