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A206700
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T(n,k)=Number of nXk 0..2 arrays avoiding the pattern z-2 z-1 z in any row or column
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8
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3, 9, 9, 26, 81, 26, 75, 676, 676, 75, 216, 5625, 15712, 5625, 216, 622, 46656, 363465, 363465, 46656, 622, 1791, 386884, 8366690, 23335217, 8366690, 386884, 1791, 5157, 3207681, 192513201, 1488199144, 1488199144, 192513201, 3207681, 5157, 14849
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OFFSET
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1,1
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COMMENTS
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Table starts
....3........9...........26..............75.................216
....9.......81..........676............5625...............46656
...26......676........15712..........363465.............8366690
...75.....5625.......363465........23335217..........1488199144
..216....46656......8366690......1488199144........262482902920
..622...386884....192513201.....94853765621......46260684361347
.1791..3207681...4428597297...6043775871265....8149739471342829
.5157.26594649.101873060353.385074186960645.1435662206447144342
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LINKS
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EXAMPLE
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Some solutions for n=4 k=3
..2..0..1....2..0..1....0..0..2....2..0..1....2..1..0....2..2..2....2..1..0
..0..0..2....2..0..2....0..0..2....2..0..2....0..1..1....1..2..1....2..1..2
..1..1..2....1..0..2....0..0..0....2..0..2....1..0..0....0..2..2....2..1..1
..0..0..1....1..2..1....1..2..0....2..0..1....1..2..2....0..0..2....0..1..1
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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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