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A233634
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Number of (n+1)X(7+1) 0..3 arrays with every 2X2 subblock having the sum of the absolute values of the edge differences equal to 6
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1
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12073496, 6552999568, 3530630987208, 2127910272105792, 1299207938978711788, 807381482186804765728, 503834532970292342872224, 315668050076034647825083096, 198001373547025265433700559818
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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..0..0..3..3..3..0..1....0..0..0..1..0..1..0..0....0..0..0..3..3..1..3..2
..0..3..1..1..0..3..3..3....0..3..3..3..1..3..3..3....0..3..2..3..0..1..0..2
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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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