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A252472
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Number of (n+2)X(7+2) 0..3 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 0 3 5 6 or 8
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1
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17061, 24331, 213791, 1741406, 14105131, 115183323, 937980722, 7634089567, 62282795777, 507708323820, 4135550418695, 33696297343259, 274629581667470, 2238121992115275, 18238035152919778, 148617809035821934
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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=2
..3..3..3..3..3..3..3..1..3....3..3..3..3..1..3..3..3..1
..3..3..3..3..1..3..3..3..3....3..3..1..3..3..3..1..3..3
..1..3..3..3..3..3..3..3..1....3..3..3..3..3..3..3..3..3
..3..3..3..1..3..3..3..3..3....3..3..3..1..3..3..3..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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