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A265872
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Number of 4Xn arrays containing n copies of 0..4-1 with no element plus any antidiagonal neighbor equal to 4-1.
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1
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24, 984, 56496, 3965392, 307543008, 25346247472, 2177808505472, 192906735661528, 17489278188423296, 1614969746814390896, 151358790056680049792, 14360889227707270019712, 1376684210617781240317184
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OFFSET
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1,1
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COMMENTS
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LINKS
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EXAMPLE
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Some solutions for n=3
..1..0..3....2..3..0....1..2..2....1..0..2....3..2..2....2..0..3....3..1..2
..2..3..2....2..1..0....0..0..2....1..2..3....2..0..3....0..2..1....1..0..2
..2..0..3....3..0..1....0..3..1....0..2..3....0..1..1....3..0..1....0..0..3
..1..1..0....2..3..1....1..3..3....0..3..1....1..0..3....1..3..2....2..3..1
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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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