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A229453
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Number of defective 3-colorings of an n X n 0..2 array connected horizontally and vertically with exactly one mistake and colors introduced in row-major 0..2 order
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1
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0, 4, 140, 7940, 903332, 221410052, 120864516084, 149656305350148, 425051698921207676, 2789532529161418879776, 42518582519087835706922360, 1510724712014268724836823960708, 125472358126936901810932026644960976
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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..1..2....0..1..1....0..1..2....0..1..0....0..1..2....0..1..1....0..1..2
..2..0..2....1..0..2....2..2..1....1..2..1....0..2..0....1..0..2....2..0..1
..0..1..0....0..1..0....0..1..0....2..0..0....2..1..2....0..2..1....1..2..2
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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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