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A235528
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Number of (n+1)X(2+1) 0..2 arrays with the sum of each 2X2 subblock two median terms lexicographically nondecreasing rowwise and columnwise
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1
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498, 6954, 102687, 1241251, 14564613, 152335168, 1529460228, 14358083795, 129965217502, 1127705340858, 9506797859825, 77906362834327, 624709679403369, 4911838758540025, 38010396000602450, 290107442005193524
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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
..1..1..0....0..0..2....1..1..0....2..0..2....0..0..0....0..0..1....0..1..2
..2..1..2....1..2..0....0..1..2....0..0..2....0..1..1....0..1..0....0..2..1
..1..1..2....1..1..0....1..1..0....1..1..0....0..2..1....1..2..1....2..1..2
..1..1..2....2..0..2....2..1..1....2..0..0....1..1..2....2..0..0....0..2..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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