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A222665 Number of nX7 0..3 arrays with exactly floor(nX7/2) elements unequal to at least one horizontal, vertical or antidiagonal neighbor, with new values introduced in row major 0..3 order 0
10, 446, 7624, 1058776, 33001473, 4437593254, 187359500736, 37621605140240, 2121341905081820, 520524918371948432, 32752399194222492694, 8549895451715446127450 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A222666

LINKS

Table of n, a(n) for n=1..12.

EXAMPLE

Some solutions for n=3

..0..0..1..1..1..1..1....0..1..1..1..1..1..1....0..0..0..0..0..0..0

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

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

CROSSREFS

Sequence in context: A199835 A001327 A288325 * A177391 A304289 A217523

Adjacent sequences:  A222662 A222663 A222664 * A222666 A222667 A222668

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 28 2013

STATUS

approved

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Last modified December 3 08:07 EST 2021. Contains 349445 sequences. (Running on oeis4.)