Number of length n arrays of permutations of 0..n-1 with each element moved by -6 to 6 places and exactly two more elements moved upwards than downwards.
A263785
Number of length n arrays of permutations of 0..n-1 with each element moved by -6 to 6 places and exactly two more elements moved upwards than downwards.
Terms
- a(0) =0a(1) =0a(2) =0a(3) =1a(4) =5a(5) =66a(6) =392a(7) =3522a(8) =15699a(9) =104014a(10) =463811a(11) =2735525a(12) =12858073a(13) =74523350a(14) =369725340a(15) =2110660483a(16) =10653316753a(17) =59256398945a(18) =300481718854
External references
- oeis: A263785