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A203027
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Number of nX3 0..3 arrays with row sums equal and column sums unequal to adjacent columns
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1
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36, 396, 4740, 50716, 578696, 6829968, 77256180, 900837948, 10744263240, 124084485456, 1463920739636, 17570679180208, 205416961911028, 2441375153064180, 29416331612748560, 346614764617651324
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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=5
..0..1..0....0..2..0....3..3..1....2..2..0....2..1..0....3..2..3....1..1..1
..0..0..1....0..1..1....2..3..2....0..1..3....2..1..0....2..3..3....0..1..2
..0..0..1....0..2..0....1..3..3....3..0..1....1..0..2....2..3..3....3..0..0
..0..1..0....1..0..1....1..3..3....1..1..2....2..0..1....2..3..3....2..0..1
..0..0..1....2..0..0....3..1..3....3..1..0....2..0..1....2..3..3....0..1..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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