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A186061
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Number of (n+2)X9 binary arrays with each 3X3 subblock having a positive determinant
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1
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60588, 1206478, 19416799, 275207345, 4584860256, 72905263923, 1130708781343, 18130539910403, 287526402899408, 4535336921964336, 72099241003949754, 1142655253137546939, 18084010448517161871, 286883699606121628553
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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 4X9
..0..1..0..0..1..0..1..0..1....0..1..0..0..1..1..0..1..0
..0..1..1..0..1..1..0..1..0....0..1..1..0..0..1..1..0..1
..1..0..1..1..0..1..0..0..1....1..1..1..1..0..0..1..1..0
..0..1..0..1..1..0..1..1..0....0..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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