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A206891
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Number of 5Xn 0..1 arrays avoiding 0 1 0 horizontally and 1 0 0 vertically
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1
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20, 400, 4792, 51800, 607043, 7354488, 88342972, 1052865902, 12550021410, 149829237791, 1789228772267, 21361035307546, 254996432939040, 3044109171852296, 36341089959264948, 433845306322806048
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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..1..1..0....1..0..1..1....0..0..1..1....1..1..1..1....1..0..1..1
..1..1..0..1....1..1..1..1....0..0..1..1....1..1..0..0....1..0..1..1
..0..0..1..1....0..1..1..1....1..0..0..0....0..0..1..1....0..0..0..0
..1..1..1..0....1..1..0..0....0..1..1..1....1..1..0..0....1..0..1..1
..0..1..1..1....0..1..1..1....1..0..1..1....1..0..1..1....1..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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