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A222917 Number of nX6 0..2 arrays with exactly floor(nX6/2) elements equal to at least one horizontal, vertical or antidiagonal neighbor, with new values introduced in row major 0..2 order 0
16, 3972, 356398, 27663713, 2133576918, 165904381397, 13105585711754, 1050919351971302, 85401044148714188 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A222918

LINKS

Table of n, a(n) for n=1..9.

EXAMPLE

Some solutions for n=3

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

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

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

CROSSREFS

Sequence in context: A003773 A217021 A087519 * A060616 A297387 A016936

Adjacent sequences:  A222914 A222915 A222916 * A222918 A222919 A222920

KEYWORD

nonn

AUTHOR

R. H. Hardin Mar 09 2013

STATUS

approved

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Last modified March 20 05:45 EDT 2019. Contains 321344 sequences. (Running on oeis4.)