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A183552 Number of nX7 0..2 arrays with each element equal to either the maximum or the minimum of its horizontal and vertical neighbors 1
63, 25785, 3721925, 569461759, 87176303417, 13344696858771, 2043774880960645, 313000943874975793, 47935484320796681363, 7341240634658342843595, 1124298676282804824274345, 172184481387904369618417369 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A183554

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..18

EXAMPLE

Some solutions for 3X7

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

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

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

CROSSREFS

Sequence in context: A183482 A001238 A230183 * A210824 A110852 A212859

Adjacent sequences:  A183549 A183550 A183551 * A183553 A183554 A183555

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 05 2011

STATUS

approved

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Last modified August 28 15:11 EDT 2015. Contains 261125 sequences.