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A232301
Number of 7Xn 0..2 arrays with every 0 next to a 1 and every 1 next to a 2 horizontally or antidiagonally
1
1, 40867, 43963319, 30690409685, 24797475083765, 20843967523877175, 17291702408190208843, 14309005468246109828087, 11852395942038473338742213, 9819088600464792990304624339, 8134045894315455725212916395019
OFFSET
1,2
COMMENTS
Row 7 of A232295
LINKS
EXAMPLE
Some solutions for n=2
..2..1....0..1....1..2....2..0....1..2....1..2....1..2....1..2....2..2....2..0
..2..2....2..2....2..1....1..2....1..1....0..1....1..2....2..1....2..0....1..2
..2..1....1..1....0..0....1..2....2..1....2..1....2..2....2..2....1..2....1..2
..2..2....2..1....1..2....1..1....2..2....2..2....2..2....2..1....2..1....1..1
..1..2....2..2....2..2....2..1....2..2....2..1....0..1....0..1....2..2....2..1
..2..1....2..1....1..2....2..2....2..2....1..2....2..1....2..2....1..1....0..2
..2..2....0..2....1..0....2..2....2..2....2..1....1..2....2..2....2..2....1..2
CROSSREFS
Sequence in context: A046180 A031668 A164648 * A212080 A097479 A337889
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 22 2013
STATUS
approved