Number of permutations of length n avoiding the permutations 13452, 13542, 14253, 14352, 14532, 15243, 15342, 15432, 24153, and 25143.

A366706

Number of permutations of length n avoiding the permutations 13452, 13542, 14253, 14352, 14532, 15243, 15342, 15432, 24153, and 25143.

Terms

    a(0) =1a(1) =1a(2) =2a(3) =6a(4) =24a(5) =110a(6) =540a(7) =2772a(8) =14704a(9) =79974a(10) =443592a(11) =2499596a(12) =14268740a(13) =82339972a(14) =479549860a(15) =2815097792a(16) =16639456452a(17) =98947148126a(18) =591537712636

External references