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A197107 Half the number of nX6 0..3 arrays with no element equal to the average of its horizontal and vertical neighbors 0
753, 2421376, 6385146382, 16851142959473, 44545247280268585, 117783697209668555853 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A197109

LINKS

Table of n, a(n) for n=1..6.

EXAMPLE

Some solutions for 4X4

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

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

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

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

CROSSREFS

Sequence in context: A177423 A251330 A092449 * A274235 A304608 A252913

Adjacent sequences:  A197104 A197105 A197106 * A197108 A197109 A197110

KEYWORD

nonn

AUTHOR

R. H. Hardin Oct 10 2011

STATUS

approved

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Last modified November 21 14:18 EST 2019. Contains 329371 sequences. (Running on oeis4.)