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A237084
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Number of (n+1)X(2+1) 0..3 arrays with the maximum plus the upper median plus the lower median minus the minimum of every 2X2 subblock equal
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1
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912, 3968, 17636, 84918, 412158, 2074898, 10501584, 54426654, 283246634, 1501153826, 7982904282, 43093989466, 233307639076, 1279207121514, 7031261342472, 39062684180020, 217475517840918, 1221592361623196
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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=4
..1..2..3....0..2..1....3..1..3....3..3..3....3..2..3....0..3..0....1..0..0
..2..2..2....2..1..3....2..2..0....2..3..2....2..2..2....1..1..1....0..3..1
..2..3..2....2..2..1....3..3..1....1..3..3....2..3..2....0..3..2....0..1..1
..2..2..2....2..1..3....3..3..1....3..2..3....2..2..2....0..2..2....1..2..2
..3..2..1....3..1..2....2..2..2....2..0..2....2..3..2....2..1..2....2..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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