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A260765
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Number of (n+2)X(6+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00000011 or 00010011
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1
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1315, 1671, 3891, 7645, 11107, 24103, 48788, 83655, 166775, 348791, 629945, 1217638, 2540532, 4817437, 9105591, 18684019, 36572654, 69169356, 138483223, 275621776, 526881193, 1035959905, 2067454175, 4004020484, 7799746263
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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=4
..0..0..0..1..0..0..0..1....0..0..1..1..0..0..1..1....1..0..0..0..1..0..0..0
..1..0..0..1..0..0..1..1....0..0..0..0..0..0..0..0....0..1..0..0..0..0..0..0
..1..0..0..0..0..0..0..0....0..0..0..0..0..0..0..0....0..0..0..0..0..0..0..1
..0..0..0..0..0..0..0..0....0..0..1..0..0..1..0..0....0..0..0..0..1..0..0..0
..0..0..0..1..0..0..1..0....0..0..1..0..0..1..0..0....1..1..0..0..1..0..0..0
..1..0..0..1..0..0..1..1....0..0..0..0..0..0..0..1....0..0..0..0..0..0..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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