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A238033
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Number of (n+2)X(2+2) 0..1 arrays with the (lower) medians of each row and column unequal to its neighbors
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1
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122, 1004, 6218, 57540, 305978, 3010316, 14910890, 152094052, 724320722, 7559479508, 35151249002, 372487228468, 1705834157786, 18265051952972, 82815310705706, 893143327522980, 4023089695733666, 43605467765614964
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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=4
..1..0..1..1....1..0..1..0....1..0..1..1....0..0..0..0....0..1..1..0
..0..1..0..1....0..1..1..1....0..0..1..1....0..1..1..1....1..0..1..1
..1..1..0..1....1..0..0..1....1..1..1..1....1..1..0..0....1..0..0..1
..0..1..0..0....0..1..1..1....0..1..0..0....0..1..1..1....1..0..1..1
..1..1..0..1....1..0..1..0....1..1..0..1....0..1..0..1....0..1..1..0
..0..0..1..1....1..1..1..0....0..1..0..0....1..0..1..1....1..1..1..0
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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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