Number of arrays of length n that are sums of 5 consecutive elements of length n+4 permutations of 0..n+3, and no two consecutive rises or falls in the latter permutation.
A229715
Number of arrays of length n that are sums of 5 consecutive elements of length n+4 permutations of 0..n+3, and no two consecutive rises or falls in the latter permutation.
Terms
- a(0) =1a(1) =26a(2) =256a(3) =1906a(4) =9136a(5) =35724a(6) =496576a(7) =4639260a(8) =42139184
External references
- oeis: A229715