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A207477 Number of nX6 0..3 arrays avoiding the patterns z z+1 z or z z-1 z in any row, column or nw-se diagonal 0
2902, 8421604, 9918542118, 14048417801822, 19555176286561332, 27133109124370438420, 37628798991659309387420 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A207479

LINKS

Table of n, a(n) for n=1..7.

EXAMPLE

Some solutions for n=4

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

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

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

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

CROSSREFS

Sequence in context: A235102 A252267 A207281 * A207533 A054828 A153412

Adjacent sequences:  A207474 A207475 A207476 * A207478 A207479 A207480

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 18 2012

STATUS

approved

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Last modified January 27 12:01 EST 2020. Contains 331295 sequences. (Running on oeis4.)