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A235750
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Number of (n+1)X(2+1) 0..3 arrays with the sum of each 2X2 subblock two median terms lexicographically nondecreasing columnwise and nonincreasing rowwise
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1
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2648, 77708, 2349533, 57181902, 1348418217, 28136789021, 560792477177, 10364143382452, 183337846709513, 3080219140780805, 49849184508693938, 776698260928729874, 11733357139416831031, 172123410005801315568
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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..2..3....2..3..2....3..1..2....1..2..3....0..3..2....0..3..1....0..2..1
..0..0..3....2..1..3....2..2..3....1..2..0....1..3..2....1..2..2....3..0..3
..1..2..0....2..0..1....1..2..2....0..2..3....2..0..0....1..1..3....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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