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A235823
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Number of (n+1)X(3+1) 0..3 arrays with the difference of the upper median and minimum value of each 2X2 subblock in lexicographically nondecreasing order columnwise and nonincreasing rowwise
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1
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29902, 2623192, 207321076, 14397784435, 927626379839, 55289364866072, 3112236118041687, 166244206849724754, 8508471125500641715, 419299358482567595448, 20003897214743803270138, 927399724187482318211255
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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
..0..1..1..2....1..1..2..0....1..2..1..2....2..2..2..3....1..0..3..0
..2..0..1..0....1..1..1..0....3..1..3..0....2..3..1..1....2..2..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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