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A235829
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Number of (n+1)X(2+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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549, 8160, 110923, 1378463, 16385455, 187651928, 2100282123, 23113626964, 251566008413, 2717152701688, 29200663712707, 312765530573453, 3342753914724018, 35676421518532748, 380426763089559131
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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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FORMULA
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Empirical recurrence of order 84 (see link above)
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EXAMPLE
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Some solutions for n=3
..1..0..2....2..1..2....1..2..2....1..1..1....2..0..2....2..0..2....1..1..2
..2..1..2....1..0..2....0..2..0....2..1..0....0..1..0....1..1..2....0..0..1
..1..1..0....0..2..2....1..0..2....1..1..1....1..1..2....0..2..0....2..1..1
..1..2..1....0..1..2....0..2..0....1..1..2....0..0..0....0..0..0....0..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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