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A186894
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Number of (n+1)X(n+1) binary arrays with every 2X2 subblock determinant equal to exactly one or two horizontal and vertical neighbor 2X2 subblock determinants
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0
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0, 148, 444, 5401, 39372, 703983, 14050512, 523902288, 17552393136, 1009883277293, 82740925046288, 10723440611064915
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OFFSET
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1,2
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COMMENTS
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LINKS
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EXAMPLE
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Some solutions for 3X3
..0..0..0....1..0..1....0..1..1....0..0..1....0..0..1....0..1..0....0..0..0
..1..0..0....1..0..0....0..0..0....0..0..1....1..0..0....1..1..0....1..0..0
..0..0..0....1..0..1....1..1..1....0..0..1....1..0..0....1..0..0....1..0..1
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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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