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A230973
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Number of (n+2) X (4+2) 0..3 arrays x(i,j) with each element diagonally or antidiagonally next to at least one element with value (x(i,j)+1) mod 4, no adjacent elements equal, and upper left element zero.
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1
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256, 9216, 215296, 6170256, 190219264, 5771137024, 173342326336, 5217149355664, 157210070262336, 4736078434765584, 142657909428672400, 4297207390388366224, 129444764469058322064, 3899248609061089917504, 117456328654788972226816
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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=1
..0..1..0..3..0..1....0..1..0..1..2..3....0..1..0..3..0..3....0..1..2..3..0..1
..2..1..0..3..2..1....0..1..2..3..0..1....0..1..2..3..0..1....2..1..0..3..2..1
..0..3..2..3..2..1....0..3..2..3..2..3....0..1..2..1..2..3....0..3..2..1..2..1
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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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