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A236815
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Number of (n+1)X(4+1) 0..2 arrays with the maximum plus the lower median minus the minimum of every 2X2 subblock equal
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1
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4627, 66853, 956456, 14757359, 230126265, 3697318630, 60011383119, 987175371637, 16341810901082, 272220635630305, 4550173897917093, 76282741176721868, 1281112106487025787, 21546122287223223153
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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
..0..0..1..0..1....1..1..0..1..2....1..2..1..2..0....0..2..0..0..0
..0..2..0..2..0....0..1..1..1..2....2..1..2..1..0....0..2..0..2..2
..0..0..1..0..0....1..1..2..1..1....1..1..2..1..1....0..0..0..2..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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