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A251115
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Number of (n+1)X(2+1) 0..3 arrays with nondecreasing maximum of every two consecutive values in every row and column
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1
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2500, 64660, 1494029, 27945953, 480842776, 7521121248, 111353209662, 1565216316524, 21222352910300, 278794962294706, 3575143198989419, 44910526954802560, 554888528859073528, 6760076062454651486
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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=2
..0..1..0....0..0..1....1..2..0....0..3..3....0..0..3....0..0..0....0..2..1
..0..0..0....3..0..3....1..2..3....3..3..2....2..2..1....0..1..1....0..0..1
..3..3..3....0..2..0....2..2..0....2..2..3....0..1..3....0..0..2....0..2..3
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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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