login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A229713 Number of arrays of length n that are sums of 3 consecutive elements of length n+2 permutations of 0..n+1, and no two consecutive rises or falls in the latter permutation. 0
1, 8, 28, 82, 500, 2740, 15040, 100630, 704000, 5310960, 44616536 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Column 3 of A229717.

LINKS

Table of n, a(n) for n=1..11.

EXAMPLE

Some solutions for n=4:

   8  9  3 12  6  6 10  8  8  9 10  8  8  9  7  6

  12  8  8  9 11  9  9  6  9 12 12  9  3 11  6  7

   8 11  9  8  8  6  4 10  4  8  7 12  6  7 10  4

   7  6 12  3  9  9  5  7  7  6  5  7  7  6  8  9

CROSSREFS

Sequence in context: A331757 A130129 A317032 * A212516 A005343 A200941

Adjacent sequences:  A229710 A229711 A229712 * A229714 A229715 A229716

KEYWORD

nonn,more

AUTHOR

R. H. Hardin, Sep 27 2013

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified June 23 10:57 EDT 2021. Contains 345397 sequences. (Running on oeis4.)