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A223150
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Number of nX2 0..1 arrays with no adjacent rows or columns having the same least squares slope fit to a straight line, with a single point array taken as having zero slope
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1
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0, 10, 12, 66, 108, 402, 876, 2754, 6348, 18122, 43660, 119970, 293196, 786930, 1963628, 5195330, 13008844, 34140458, 85957676, 224448290, 567203884, 1475618386, 3735881132, 9694028482, 24581846668, 63682969994, 161696209356
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OFFSET
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1,2
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COMMENTS
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LINKS
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EXAMPLE
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Some solutions for n=3
..0..0....0..0....0..1....1..0....0..1....1..1....1..0....0..1....0..1....1..1
..0..1....1..0....1..1....0..0....1..0....1..0....0..1....1..0....0..0....0..1
..1..0....0..1....1..0....0..1....0..0....0..1....0..0....1..1....1..0....1..0
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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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