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A235835
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Number of (3+1)X(n+1) 0..2 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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3459, 110923, 3294824, 87473420, 2193348247, 52199681720, 1198855696992, 26756779774314, 584558763163487, 12561692389108238, 266585565128278250, 5604206528796221156, 116980551132195105510, 2429031400047509662778
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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..1....2..2..0....2..1..1....0..0..2....1..0..2....2..0..1....0..2..0
..0..0..2....1..2..0....0..1..0....1..2..0....1..0..2....1..2..2....1..0..2
..2..2..2....1..0..0....1..0..2....1..1..0....1..2..2....1..2..0....0..0..0
..1..1..2....2..0..0....1..1..1....1..1..2....0..0..0....0..1..1....1..0..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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