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A223309
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T(n,k)=Number of nX(k+1) 0..2 arrays with every row least squares fitting to a positive slope straight line and every column least squares fitting to a zero or positive slope straight line, with a single point array taken as having zero slope
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6
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3, 9, 6, 36, 36, 18, 102, 340, 324, 41, 343, 1914, 12240, 1845, 123, 996, 13850, 195228, 221346, 17343, 310, 3159, 79266, 4750550, 8514450, 8909352, 119660, 957, 9237, 523133, 78948936, 576481773, 1004831988, 221358126, 1139787, 2530, 28755
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OFFSET
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1,1
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COMMENTS
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Table starts
....3.......9.........36.........102..........343............996..........3159
....6......36........340........1914........13850..........79266........523133
...18.....324......12240......195228......4750550.......78948936....1652577147
...41....1845.....221346.....8514450....576481773....23314034430.1290079956663
..123...17343....8909352..1004831988.241636868781.29530598586528
..310..119660..221358126.65367672572
..957.1139787.8788947912
.2530.8607060
.7848
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LINKS
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EXAMPLE
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Some solutions for n=3 k=4
..2..0..0..1..2....0..0..1..0..1....0..0..0..0..1....0..0..0..0..1
..1..2..2..2..2....0..1..1..1..2....1..0..1..2..1....0..0..0..1..1
..2..0..1..1..2....1..0..2..0..2....0..1..1..2..1....0..1..0..1..2
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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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