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A252572
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Number of (n+2)X(6+2) 0..3 arrays with every 3X3 subblock row and diagonal sum equal to 1 2 5 6 or 7 and every 3X3 column and antidiagonal sum not equal to 1 2 5 6 or 7
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1
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5401, 23007, 92725, 395500, 2538669, 11285381, 53055996, 337833222, 1537313257, 7468646942, 48266349656, 221948510836, 1091522283798, 7130961567961, 32949908161991, 162858861392766, 1070100774007537, 4955450639355900
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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..3..2..2..3..2..1....0..2..0..0..2..0..0..2....3..2..1..3..1..1..0..1
..2..0..0..2..0..0..2..0....1..2..3..1..1..3..2..2....0..2..0..0..2..0..0..2
..0..2..0..0..1..0..0..2....2..0..0..2..0..0..2..0....0..0..2..0..0..2..0..0
..1..2..3..2..2..3..2..2....0..2..0..0..2..0..0..2....3..2..2..3..1..2..3..2
..2..0..0..1..0..0..2..0....1..2..3..2..1..3..1..1....0..2..0..0..2..0..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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