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A237394
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Number of (n+1)X(3+1) 0..3 arrays with the maximum plus the upper median minus the lower median of every 2X2 subblock equal
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1
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7172, 114034, 1794402, 30590608, 514064312, 8872195706, 152180119484, 2639996468928, 45688402987094, 795090776212578, 13827088054162172, 241212549191101972, 4208384052189989236, 73571217561960370602
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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..3..0..0....1..1..3..2....2..1..2..2....0..2..2..1....0..1..3..3
..2..1..1..2....2..2..2..2....3..3..3..3....2..1..1..2....1..3..3..3
..3..2..2..0....2..3..1..0....2..0..2..1....2..3..0..0....3..3..3..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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