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A209681
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Number of n X n 0..6 arrays with every element equal to a diagonal or antidiagonal reflection, and new values 0 upwards introduced in row major order
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1
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OFFSET
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1,2
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COMMENTS
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LINKS
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EXAMPLE
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Some.solutions.for.n=3
..0..0..1....0..1..0....0..1..2....0..0..1....0..1..1....0..1..2....0..1..2
..1..1..0....0..1..1....1..1..1....0..0..1....1..2..0....1..2..0....1..1..0
..0..1..1....0..0..0....3..1..0....2..1..1....3..0..1....2..0..1....0..0..0
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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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