A229712 - OEIS

A229712

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

1, 4, 6, 32, 86, 544, 2194, 15872, 86642, 707584, 4887130, 44736512, 373320362, 3807514624, 37157321890

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,2

COMMENTS

Column 2 of A229717.

LINKS

Table of n, a(n) for n=1..15.

EXAMPLE

Some solutions for n=4:

3 7 2 2 4 4 6 3 5 3 5 5 4 7 4 6

2 4 4 3 3 2 4 5 6 2 3 6 5 5 5 5

3 2 5 5 4 3 3 4 5 4 4 4 6 3 4 4

5 3 4 7 3 4 4 3 3 7 5 1 4 2 5 3

CROSSREFS

Sequence in context: A078250 A239224 A087299 * A377646 A331513 A164127

Adjacent sequences: A229709 A229710 A229711 * A229713 A229714 A229715

KEYWORD

nonn,more

AUTHOR

R. H. Hardin, Sep 27 2013

STATUS

approved