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A187434
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Number of (n+1)X3 0..2 arrays with no 2X2 subblock commuting with any of its horizontal and vertical 2X2 subblock neighbors
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1
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646, 14178, 311730, 6858445, 150878368, 3319295436, 73023484028, 1606497082565, 35342494847192, 777525229664355, 17105342463962277, 376312857890356814, 8278779993593986684, 182130896536461047078, 4006829931293712863310
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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 5X3
..0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0
..0..2..1....0..1..1....2..1..0....0..2..0....1..0..1....2..2..0....2..0..1
..0..2..0....0..1..2....1..1..2....0..0..0....1..2..2....0..1..1....1..0..1
..2..1..0....2..0..2....1..1..2....0..1..0....2..2..0....1..2..2....1..2..0
..0..2..0....0..1..1....2..2..0....2..2..2....1..0..1....1..1..1....0..2..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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