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A233404
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Number of (n+1)X(3+1) 0..2 arrays with row and column sums nondecreasing, and no adjacent elements equal
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1
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22, 35, 211, 360, 1461, 2543, 8732, 15431, 46953, 84143, 236070, 431533, 1139832, 2108530, 5322489, 9995589, 24398272, 46169416, 109661296, 209717615, 488266741, 937818172, 2145733905, 4151538574, 9381737335, 18189661542, 40631596581
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OFFSET
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1,1
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COMMENTS
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Column 3 of A233408
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LINKS
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R. H. Hardin, Table of n, a(n) for n = 1..67
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EXAMPLE
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Some solutions for n=5
..0..2..0..2....0..2..0..1....0..1..0..1....0..2..0..2....1..0..1..0
..1..0..2..1....1..0..2..0....1..0..2..0....1..0..2..1....0..1..0..2
..0..2..0..2....0..1..0..2....0..2..0..2....0..2..0..2....2..0..2..0
..2..0..2..0....2..0..2..1....2..0..2..1....2..0..2..1....0..2..0..2
..0..2..0..2....1..2..0..2....0..2..1..2....1..2..1..2....1..0..2..1
..1..0..2..1....2..1..2..1....2..1..2..1....2..1..2..1....0..2..1..2
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CROSSREFS
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Sequence in context: A245365 A100039 A061561 * A167277 A084141 A259736
Adjacent sequences: A233401 A233402 A233403 * A233405 A233406 A233407
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KEYWORD
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nonn
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AUTHOR
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R. H. Hardin, Dec 09 2013
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STATUS
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approved
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