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A235576
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Number of (n+1)X(3+1) 0..3 arrays with the difference of the upper and lower median value of each 2X2 subblock in lexicographically nondecreasing order rowwise and columnwise
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1
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28978, 3103656, 317142694, 28760293894, 2318212983882, 166487069932858, 10857138929700404, 650809497689548858, 36350010705252923052, 1909892977985471316274, 95227363392815469480914
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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=1
..3..3..0..3....3..1..1..2....3..3..0..2....2..3..1..3....2..3..1..2
..3..1..3..0....1..1..1..0....3..1..2..0....1..0..2..1....2..1..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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