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A186046
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Number of (n+2)X5 binary arrays with each 3X3 subblock singular
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1
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12278, 224698, 4071834, 69579654, 1231779874, 21790214094, 384595851458, 6808982811886, 120583672850434, 2135856648045198, 37846168273108354, 670699974248523022, 11887026695049436738, 210692726936282537230
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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 4X5
..0..1..0..1..1....0..0..1..1..0....0..0..1..0..1....0..0..1..1..1
..1..1..0..1..1....0..0..1..1..0....0..0..0..0..1....0..0..1..0..0
..0..1..0..0..0....0..0..0..0..0....0..0..0..0..0....0..0..1..0..0
..0..0..0..1..1....1..1..1..0..1....0..1..1..0..0....1..0..0..1..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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