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!)
A250506 Number of (n+2)X(2+2) 0..2 arrays with nondecreasing medians of every three consecutive values in every row and column 1
300763, 9777655, 289735900, 8566581775, 211068335312, 4788105206370, 106126605135236, 2219165591607345, 44296932467093518, 863344277050145773, 16398452113636312341, 304011141191511318716, 5541141767706039301570 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 2 of A250507

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..39

EXAMPLE

Some solutions for n=1

..0..2..1..0....0..0..0..1....0..2..1..0....0..2..0..2....0..1..2..1

..0..0..0..2....0..1..2..0....1..0..1..2....2..0..1..1....0..1..2..0

..1..1..0..2....1..2..0..1....2..0..2..2....1..1..0..2....0..2..1..1

CROSSREFS

Sequence in context: A283209 A113939 A023686 * A156998 A156999 A111031

Adjacent sequences:  A250503 A250504 A250505 * A250507 A250508 A250509

KEYWORD

nonn

AUTHOR

R. H. Hardin, Nov 24 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 October 23 12:42 EDT 2021. Contains 348214 sequences. (Running on oeis4.)