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A251797
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Number of (n+1)X(4+1) 0..3 arrays with no 2X2 subblock having x11-x00 less than x10-x01
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1
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36552, 3352272, 294088336, 26787273856, 2446811684440, 224175608341756, 20552060379396424, 1884978485974990408, 172902962249484086342, 15861042034905778115252, 1455015754461632248883532
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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
..1..0..2..3..1....2..0..1..0..2....1..2..1..3..2....2..1..2..2..2
..0..2..0..0..2....0..2..1..3..1....0..2..3..1..2....0..1..1..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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