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A250498
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Number of (n+2)X(2+2) 0..1 arrays with nondecreasing medians of every three consecutive values in every row and column
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1
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2744, 23096, 181058, 1410255, 9788132, 64023155, 409593826, 2524591167, 15066718470, 88100873940, 505277709506, 2845393524899, 15788358013248, 86483717929940, 468157706230284, 2507909862945678, 13310785933432322
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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..0....0..0..0..1....0..0..0..0....0..0..0..1....0..0..0..1
..1..0..1..1....1..1..0..1....1..1..1..0....0..0..0..1....0..1..0..1
..0..1..0..1....1..1..1..0....0..1..1..1....0..1..1..0....1..0..0..1
..1..1..1..0....1..1..1..1....0..0..1..0....0..1..0..1....0..0..1..0
..1..1..1..1....1..1..0..1....1..1..1..0....1..1..0..1....0..0..1..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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