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A237789
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Number of (n+1)X(4+1) 0..3 arrays with the maximum plus the minimum minus the lower median of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one
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1
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108626, 5195344, 256311790, 12795841200, 635807130472, 31548627779530, 1566949786889880, 77875021827170574, 3868675262695142732, 192157134168657424490, 9545741883703330772072, 474231874889121097925970
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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..0..3..1....3..0..1..2..2....0..1..0..1..1....1..0..2..2..1
..2..1..3..0..1....0..3..3..1..1....0..2..1..3..3....1..0..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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