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A235529
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Number of (n+1)X(3+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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2996, 102687, 4295649, 140614400, 4492923265, 120808065816, 3063485786072, 69645586587955, 1495519651732182, 29857757996570399, 567731079489296912, 10249467332866019470, 177776286043094726447, 2965935579570089700509
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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=2
..2..0..1..2....1..0..2..0....2..0..2..0....1..0..1..1....1..1..0..2
..1..1..1..0....2..0..2..2....0..0..1..0....0..2..2..2....1..1..1..2
..1..0..1..1....0..2..2..2....0..1..0..2....2..2..0..2....0..1..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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