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A267204
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Number of 6Xn arrays containing n copies of 0..6-1 with every element equal to or 1 greater than any north, southwest or northwest neighbors modulo 6 and the upper left element equal to 0.
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0
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1, 0, 0, 0, 0, 1, 7, 92, 1152, 9087, 44525, 149501, 382787, 893920, 2164458, 6927881, 49712828, 546657345, 5768069656, 51400505702
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OFFSET
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1,7
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COMMENTS
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LINKS
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EXAMPLE
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Some solutions for n=10
..0..0..1..1..2..3..3..4..4..5....0..1..2..2..3..3..4..5..0..0
..0..0..1..1..2..3..4..4..5..5....1..1..2..3..3..4..4..5..0..1
..0..1..1..2..2..3..4..4..5..5....1..2..2..3..4..4..5..5..0..1
..0..1..2..2..2..3..4..4..5..0....2..2..3..3..4..5..5..5..0..1
..0..1..2..2..3..3..4..5..5..0....2..2..3..4..4..5..5..0..0..1
..1..1..2..3..3..3..4..5..5..0....2..3..3..4..4..5..0..0..1..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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