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A236636
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Number of (n+1)X(2+1) 0..2 arrays colored with the maximum plus the upper median plus the minimum of every 2X2 subblock
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1
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474, 4176, 37018, 334180, 2988228, 26755684, 239823278, 2152052046, 19284072120, 172791130750, 1548885972816, 13886350823992, 124465875300538, 1115550628999210, 9999316448921006, 89632910699558058, 803421988230512594
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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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FORMULA
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Empirical recurrence of order 72 (see link above)
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EXAMPLE
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Some solutions for n=3
..0..0..2....1..0..1....2..2..0....1..2..0....0..2..2....2..0..0....1..2..2
..1..1..0....1..0..0....1..1..1....2..1..2....0..1..2....2..1..1....1..1..1
..1..1..1....2..1..1....1..2..2....1..1..2....1..0..0....0..1..2....0..0..2
..2..2..1....0..2..2....1..0..0....1..0..1....2..0..2....2..2..1....0..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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