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A252030
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Number of (n+2)X(6+2) 0..2 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 0 2 or 4
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1
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4259, 14831, 85199, 541544, 3560831, 23454804, 153768348, 1007751301, 6615116021, 43445771467, 285305534351, 1873609561507, 12305294821533, 80822493213337, 530855803548973, 3486726107215819, 22901307615446511
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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=3
..2..2..2..2..2..2..1..2....2..1..2..2..2..2..2..2....1..2..2..1..2..2..1..2
..2..2..2..1..2..2..2..2....2..2..2..2..2..2..2..1....2..2..2..2..2..2..2..2
..2..2..2..2..2..2..2..2....2..2..2..2..2..2..2..2....2..2..2..2..2..2..2..2
..1..2..2..2..2..2..1..2....1..2..2..2..2..2..2..2....2..2..2..2..2..2..2..1
..2..2..2..1..2..2..2..2....2..1..2..2..1..2..2..2....2..2..1..2..2..1..2..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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