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A237771
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Number of (n+1)X(n+1) 0..2 arrays with the maximum plus the upper median of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one
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0
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81, 1456, 44224, 2255544, 331842772, 117723591636, 102404775087552, 203849177456550610, 1004253131939214737666, 11987401934837625930474512, 346393910212793505363317222720
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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
..0..1..0..2....2..0..1..1....2..2..1..1....2..0..0..0....0..1..1..1
..1..1..2..0....1..1..0..2....2..0..0..0....0..0..1..1....2..0..1..2
..1..2..0..1....0..1..2..1....0..1..1..2....2..1..1..2....1..2..0..2
..2..0..1..0....1..2..1..0....1..1..2..2....2..0..2..0....1..0..0..1
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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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