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A185803
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Number of (n+1)X6 0..3 arrays with every 2X2 subblock trace equal to some horizontal or vertical neighbor 2X2 subblock trace
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1
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166272, 104024384, 29410603520, 9977246681216, 3230776071054976, 1064219916625097376, 348593375731473172480, 114404199665472905793216, 37521552327662806687621312, 12308810295209257671658800832
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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 3X6
..0..3..2..2..3..2....0..3..0..3..3..0....0..1..0..2..1..3....0..0..2..1..1..1
..0..0..2..3..3..3....0..0..0..3..3..1....0..0..0..1..2..2....0..0..2..0..2..2
..0..0..0..1..0..3....0..0..0..3..3..1....0..0..0..1..3..1....0..0..0..0..2..1
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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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