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A202633
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Number of nX3 0..3 arrays with adjacent row and column sums unequal
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1
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36, 2428, 143028, 8196796, 464590190, 26143599304, 1464347535012, 81766083532136, 4555446633690226, 253375514864780928, 14074813726276067778, 781057432128507731780, 43308319465255378496036, 2399781752411015808001612
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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
..2..0..1....0..0..3....2..1..1....0..3..1....2..3..0....3..2..2....1..2..2
..2..3..3....1..2..2....3..3..3....0..2..0....1..0..2....2..3..0....1..2..1
..2..2..3....0..0..1....2..2..1....1..3..1....1..3..3....3..0..0....2..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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