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A237320
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Number of (n+1)X(4+1) 0..2 arrays with the maximum plus the upper median 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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6608, 79360, 949596, 12331794, 156958400, 1937821588, 23858930168, 317722513312, 4139126948816, 52268979025592, 656729527016504, 8887663666467120, 117725142109997232, 1512493223557177738
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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..2..1..1....1..1..1..1..0....2..1..2..0..1....2..0..1..1..0
..0..2..1..0..1....2..0..1..1..1....1..0..2..2..0....0..0..0..0..0
..0..1..0..2..1....2..1..0..1..1....2..0..0..1..1....2..1..1..0..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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