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!)
A250077 Number of length n+5 0..4 arrays with every six consecutive terms having the maximum of some two terms equal to the minimum of the remaining four terms 1
6835, 21405, 68863, 222329, 706561, 2170435, 6341373, 19472847, 60813057, 190846823, 598632737, 1870508961, 5811715605, 18151965223, 57033084799, 179657486585, 566458808209, 1786121575521, 5633740122641, 17793740523897 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A250081

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

EXAMPLE

Some solutions for n=3

..1....0....1....3....2....4....4....2....0....2....4....0....2....4....3....2

..4....0....3....2....1....3....4....3....3....0....4....3....4....4....4....2

..4....0....1....1....4....0....2....2....0....0....3....2....4....0....4....2

..1....1....1....4....1....0....2....2....0....4....1....2....1....1....2....3

..0....0....1....2....3....2....0....2....4....3....1....2....1....3....1....2

..4....4....1....4....1....0....2....3....0....0....0....2....1....1....2....2

..1....0....4....2....1....3....3....2....4....0....2....3....4....1....4....4

..1....2....4....3....3....4....2....0....3....0....1....0....3....4....3....0

CROSSREFS

Sequence in context: A075669 A215992 A206313 * A178277 A235899 A212076

Adjacent sequences:  A250074 A250075 A250076 * A250078 A250079 A250080

KEYWORD

nonn

AUTHOR

R. H. Hardin, Nov 11 2014

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 February 29 08:26 EST 2020. Contains 332355 sequences. (Running on oeis4.)