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A222953
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T(n,k)=Number of nXk 0..3 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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4
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4, 0, 0, 0, 212, 0, 0, 2256, 2256, 0, 0, 36302, 125664, 36302, 0, 0, 455904, 8579208, 8579208, 455904, 0, 0, 6471572, 436075392, 3084748094, 436075392, 6471572, 0, 0, 84040156, 25670781880, 690124074740, 690124074740, 25670781880, 84040156, 0, 0
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OFFSET
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1,1
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COMMENTS
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Table starts
.4..........0.............0...............0...............0...............0
.0........212..........2256...........36302..........455904.........6471572
.0.......2256........125664.........8579208.......436075392.....25670781880
.0......36302.......8579208......3084748094....690124074740.194406198823968
.0.....455904.....436075392....690124074740.593420786763904
.0....6471572...25670781880.194406198823968
.0...84040156.1318401732192
.0.1156716696
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LINKS
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EXAMPLE
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Some solutions for n=3 k=4
..2..0..0..0....0..2..0..1....2..0..0..0....1..0..2..1....0..2..2..1
..1..2..0..2....0..0..0..3....2..0..0..2....1..0..2..2....3..2..2..2
..1..0..2..0....2..2..2..1....2..2..0..2....2..2..2..2....0..0..2..0
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CROSSREFS
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KEYWORD
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AUTHOR
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STATUS
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approved
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