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A238028
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Number of (2+2)X(n+2) 0..1 arrays with the (lower) medians of each row unequal to its neighbors and each column equal to its neighbors
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1
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146, 310, 12722, 32502, 1147442, 3283862, 104956562, 323207446, 9683790866, 31428574342, 899218599554, 3038452573750, 83934164549906, 292947099322966, 7869062871900626, 28211912828754006, 740578605678171986
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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
..0..0..0..0..0..0....0..0..0..0..0..0....0..0..1..1..1..1....0..1..0..1..1..1
..0..1..1..1..1..1....0..0..1..1..1..1....0..0..1..0..0..0....1..0..0..0..1..0
..0..0..0..0..1..1....1..0..0..1..1..0....1..1..0..0..1..1....0..1..1..1..0..1
..1..1..1..1..0..0....1..1..1..0..0..1....1..0..0..0..0..0....0..0..0..0..0..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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