A229719 Number of arrays of length 3 that are sums of n consecutive elements of length 3+n-1 permutations of 0..3+n-2, and no two consecutive rises or falls in the latter permutation.

4, 6, 28, 76, 256, 374, 948, 1024, 2264, 2166, 4396, 3912

Offset

1,1

Comments

Row 3 of A229717.

Links

Table of n, a(n) for n=1..12.

Example

Some solutions for n=4:
  10 12 10  8  9  8 10  8  8  8  9 10 10 10 13  7
   8  9 11 11 11  7  7 12 11 10 11 11 13 12 10 10
   9  7  9 14 10 10  8 14 13 11 12 10 12 11  8 12

Crossrefs

Cf. A229717.

Sequence in context: A204385 A341045 A050881 * A122113 A093815 A142859

Adjacent sequences: A229716 A229717 A229718 * A229720 A229721 A229722

Keyword

nonn,more

Author

R. H. Hardin, Sep 27 2013

Status

approved