Number of arrays of length 5 that are sums of n consecutive elements of length 5+n-1 permutations of 0..5+n-2, and no two consecutive rises or falls in the latter permutation.
A229721
Number of arrays of length 5 that are sums of n consecutive elements of length 5+n-1 permutations of 0..5+n-2, and no two consecutive rises or falls in the latter permutation.
Terms
- a(0) =32a(1) =86a(2) =500a(3) =1152a(4) =9136a(5) =44372a(6) =157194a(7) =326476a(8) =788998
External references
- oeis: A229721