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A267838
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Number of 5 X n arrays containing n copies of 0..5-1 with every element equal to or 1 greater than any northeast neighbor modulo 5 and the upper left element equal to 0.
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1
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24, 330, 10924, 499523, 26266875, 1478892354, 87594047188, 5391653805495, 341970056934015, 22214975138366828, 1471550694169349032, 99068734086514880811, 6761223958100714013859, 466848896441111995110240
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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
..0..2..3....0..2..0....0..3..1....0..2..0....0..2..0....0..2..1....0..2..4
..3..4..0....3..0..1....3..1..2....2..1..4....3..0..1....3..2..4....3..0..4
..4..1..1....1..2..4....2..3..4....1..4..1....1..1..3....3..4..0....1..0..2
..2..2..0....3..4..2....4..0..1....0..2..3....2..4..2....4..0..1....1..3..1
..3..1..4....4..3..1....0..2..4....3..3..4....4..3..4....1..2..3....4..2..3
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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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