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A267429
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Number of 7Xn arrays containing n copies of 0..7-1 with every element equal to or 1 greater than any west, northeast or northwest neighbors modulo 7 and the upper left element equal to 0.
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0
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720, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 34, 701, 19074, 522450, 11762912, 217691742, 3402077276
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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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A solution for n=15
..0..0..1..1..2..2..2..3..3..4..4..5..5..6..6
..0..1..1..2..2..2..3..3..4..4..5..5..6..6..0
..1..1..2..2..3..3..3..4..4..5..5..6..6..0..0
..2..2..2..3..3..4..4..4..5..5..6..6..0..0..1
..2..2..3..3..4..4..5..5..5..6..6..0..0..1..1
..2..3..3..4..4..5..5..6..6..6..0..0..1..1..1
..3..3..4..4..5..5..6..6..0..0..0..1..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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