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A236196
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Number of (n+1) X (2+1) 0..3 arrays colored with the upper median plus the lower median minus the minimum of every 2 X 2 subblock.
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1
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2936, 76340, 1971348, 51179036, 1330663048, 34586439766, 898451728732, 23340692708758, 606449327351216, 15757063282924732, 409388961057055582, 10636475509484365260, 276353315572536082076, 7180115918481602175568
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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
..1..3..1....1..1..0....1..3..2....1..1..1....2..1..0....2..1..2....3..2..2
..3..0..0....3..0..0....2..3..2....0..1..3....3..0..0....0..0..3....1..3..3
..0..3..2....2..2..3....2..1..1....0..0..1....0..2..1....2..0..1....3..3..2
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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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