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A251798
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Number of (n+1)X(5+1) 0..3 arrays with no 2X2 subblock having x11-x00 less than x10-x01
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1
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187000, 27291608, 3934266515, 594938582014, 90717637876583, 13902663302194715, 2134102396738819286, 327882361916540095426, 50392001598117407333828, 7746165276288696623011479
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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=1
..0..2..0..1..3..2....0..0..3..1..1..1....2..2..2..2..2..3....0..2..2..2..2..3
..2..0..2..2..0..3....2..3..0..2..2..3....0..0..1..2..2..3....0..0..0..0..3..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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