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A184386
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T(n,k)=1/12 the number of (n+2)X(k+2) 0..2 arrays with each 3X3 subblock containing three of each value
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10
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140, 545, 545, 2174, 1494, 2174, 9113, 4281, 4281, 9113, 43295, 13616, 8936, 13616, 43295, 212747, 55386, 21473, 21473, 55386, 212747, 1096781, 242370, 73139, 38642, 73139, 242370, 1096781, 6045233, 1165496, 280347, 104312, 104312, 280347
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OFFSET
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1,1
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COMMENTS
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Table starts
.......140.......545......2174......9113....43295..212747.1096781.6045233
.......545......1494......4281.....13616....55386..242370.1165496.6248040
......2174......4281......8936.....21473....73139..280347.1245641.6472317
......9113.....13616.....21473.....38642...104312..336236.1348574.6736118
.....43295.....55386.....73139....104312...207470..503298.1633604.7390644
....212747....242370....280347....336236...503298..890982.2168744.8382192
...1096781...1165496...1245641...1348574..1633604.2168744.3651098
...6045233...6248040...6472317...6736118..7390644.8382192
..33958643..34487190..35048783..35668172.37119266
.194694395.195981866.197315495.198726728
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LINKS
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EXAMPLE
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Some solutions with a(1,1)=0 for 5X4
..0..0..1..0....0..0..2..2....0..1..2..0....0..0..2..1....0..2..2..0
..1..2..2..0....2..1..1..2....2..1..2..2....2..0..1..2....2..1..1..0
..0..2..1..1....2..0..1..0....0..0..1..0....1..2..1..0....0..0..1..2
..0..0..1..0....0..2..0..2....1..2..0..1....0..2..0..1....2..2..0..2
..1..2..2..0....2..1..1..2....2..2..1..2....2..1..0..2....2..1..1..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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