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A234113
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Number of (n+1)X(7+1) 0..4 arrays with every 2X2 subblock having the sum of the absolute values of all six edge and diagonal differences equal to 12
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1
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83012, 446590, 2579864, 20547980, 150134376, 1293718300, 10603143992, 97572997380, 892457433308, 8881590361884, 90024944561008, 965652228376156, 10592740576262476, 120178412755723492, 1386668576796168084
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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..1..4..4..1..1..1..4....4..4..4..4..1..0..4..4....3..0..3..4..4..4..1..0
..4..0..1..1..4..0..4..1....4..0..4..0..1..4..4..0....3..0..3..0..4..0..1..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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