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A277770
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Number of 5Xn 0..2 arrays with every element equal to some element at offset (-1,-1) (-1,0) (-1,1) (0,-1) (0,1) or (1,0) both plus 1 mod 3 and minus 1 mod 3, with new values introduced in order 0..2.
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1
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0, 56, 3666, 270291, 20049229, 1487830718, 110036582827, 8144355400488, 602835463794197, 44616311792079721, 3302197502743906336, 244405001824291326112, 18089091210686721809130, 1338824653239265489456655
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OFFSET
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1,2
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COMMENTS
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LINKS
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EXAMPLE
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Some solutions for n=3
..0..1..2. .0..1..2. .0..1..2. .0..1..2. .0..1..2. .0..1..2. .0..1..0
..2..2..0. .2..1..0. .2..2..0. .2..1..0. .2..0..0. .2..0..0. .2..2..2
..1..0..1. .2..1..1. .0..1..2. .0..2..0. .2..1..2. .1..1..0. .1..0..1
..1..2..1. .0..1..2. .0..2..1. .2..2..1. .0..1..0. .0..0..2. .2..0..2
..0..0..1. .1..2..0. .2..1..0. .1..0..2. .0..2..2. .2..1..0. .1..1..2
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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