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A233112
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Number of nX7 0..5 arrays with no element x(i,j) adjacent to value 5-x(i,j) horizontally or vertically, top left element zero, and 1 appearing before 2 3 and 4, and 2 appearing before 3 in row major order
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1
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2136, 53692063, 1471365099497, 40385221182281560, 1108502928092713640626, 30426461543542804692390703, 835153023014356911992288011287, 22923486223269810222694953768125080
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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=2
..0..0..0..1..0..1..5....0..0..0..1..2..4..0....0..0..0..1..2..5..3
..0..0..0..0..2..5..3....1..0..0..0..0..4..4....4..0..0..2..5..5..4
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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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