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A273967
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Number of nX4 0..3 arrays with no three equal values forming an isosceles triangle, and new values introduced in 0..3 order.
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1
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15, 1264, 24587, 49534, 36817, 40569, 36570, 90627, 89429, 182457, 100921, 179282, 121279, 301658, 206783, 445549, 325633, 652935, 526099, 1011751, 897383, 1627068, 1524277, 2600188, 2533039, 4097718, 4108747, 6343186, 6487741, 9626296, 9987409
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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..2. .0..0..1..2. .0..1..1..2. .0..0..1..2. .0..0..1..1
..3..3..2..3. .1..1..0..0. .0..3..3..2. .3..2..1..2. .2..3..3..3
..0..1..2..0. .3..3..3..2. .3..1..1..2. .2..3..1..3. .1..1..0..0
..3..1..2..0. .0..2..2..1. .2..0..0..0. .0..0..1..3. .3..0..1..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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