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A215902
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Number of diagonal and antidiagonal neighbor colorings of the even squares of an nX6 array with new integer colors introduced in row major order
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2
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5, 52, 2906, 373780, 87852626, 33093356640, 18383354944364, 14216420563705724, 14670987605491079080, 19558496206477343793824, 32828323775130245290328888, 67939294184937980415465539016, 170381709311721603692658697682568
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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=3
..0..x..1..x..1..x....0..x..1..x..2..x....0..x..1..x..2..x....0..x..1..x..2..x
..x..2..x..3..x..2....x..3..x..3..x..1....x..3..x..3..x..4....x..3..x..0..x..4
..4..x..5..x..4..x....2..x..2..x..4..x....1..x..1..x..2..x....2..x..5..x..2..x
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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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