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A250615
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Number of (n+1)X(3+1) 0..2 arrays with nondecreasing maximum of every two consecutive values in every row and column
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1
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2704, 71610, 1690656, 32944614, 595652178, 9955305702, 159191945604, 2447786874761, 36658965039940, 537101491175460, 7742699987325454, 110146944374439952, 1550863271320446778, 21652702233916294607
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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..2..1....0..0..2..0....1..2..2..1....1..1..1..0....0..0..1..1
..2..2..2..1....0..2..1..2....1..2..2..0....2..1..2..1....1..2..2..0
..1..0..1..0....2..1..2..0....1..1..2..1....1..1..2..2....1..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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