Number of preferential arrangements of n labeled elements when at least k=6 elements per rank are required.

A245791

Number of preferential arrangements of n labeled elements when at least k=6 elements per rank are required.

Terms

    a(0) =1a(1) =0a(2) =0a(3) =0a(4) =0a(5) =0a(6) =1a(7) =1a(8) =1a(9) =1a(10) =1a(11) =1a(12) =925a(13) =3433a(14) =9439a(15) =22881a(16) =51767a(17) =112269a(18) =17390049a(19) =140166497a(20) =749266977a(21) =3311021321a(22) =13091222301a(23) =48138992687

External references