A229720 Number of arrays of length 4 that are sums of n consecutive elements of length 4+n-1 permutations of 0..4+n-2, and no two consecutive rises or falls in the latter permutation.

10, 32, 82, 436, 1906, 4564, 13232, 18336, 43654, 50284

Offset

1,1

Comments

Row 4 of A229717.

Links

Table of n, a(n) for n=1..10.

Example

Some solutions for n=4:
   9 11 12  7 15 12  9 13  6 14 15 17 12 11 11  8
  13 12 10 11 12 15 10 14  9 11 12 12 11 14 15  9
  16 10  8 14 11 17 11 15 13  9  9  9 12 13 17 11
  14 11 10 15 12 15 14 11 16  7 11  8 15 12 16 14

Crossrefs

Sequence in context: A337148 A202804 A155192 * A350108 A024933 A198646

Adjacent sequences: A229717 A229718 A229719 * A229721 A229722 A229723

Keyword

nonn,more

Author

R. H. Hardin, Sep 27 2013

Status

approved