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A206211
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Number of (n+1)X5 0..2 arrays with every 2X3 or 3X2 subblock having exactly two equal edges, and new values 0..2 introduced in row major order
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1
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594, 992, 2224, 8136, 21984, 74080, 274320, 747456, 2518720, 9326880, 25413504, 85636480, 317113920, 864059136, 2911640320, 10781873280, 29378010624, 98995770880, 366583691520, 998852361216, 3365856209920, 12463845511680
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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: a(n) = 34*a(n-3) for n>7
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EXAMPLE
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Some solutions for n=4
..0..0..1..0..1....0..0..1..2..2....0..0..1..0..1....0..0..1..0..2
..0..1..0..0..1....0..1..2..2..0....0..2..0..0..1....0..1..0..0..2
..2..0..0..1..2....1..2..2..0..2....1..0..0..1..0....2..0..0..1..0
..0..0..1..2..2....2..2..0..2..2....0..0..1..0..0....0..0..1..0..0
..0..1..2..2..0....2..1..2..2..0....2..2..0..0..1....1..1..0..0..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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