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A205756
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Number of 5X(n+1) 0..2 arrays with every 2X2 subblock having the same number of equal edges as its horizontal neighbors and a different number from its vertical neighbors, and new values 0..2 introduced in row major order
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1
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2268, 12384, 63838, 383290, 2244622, 14131118, 88143754, 572187838, 3709029086, 24613160072, 163670433374, 1104155427184, 7473775678826, 51060113489722, 350078262846120, 2415378206667070, 16720104940755442, 116264115349570420
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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=4
..0..0..1..0..2....0..0..1..2..0....0..0..1..0..1....0..1..0..1..0
..2..0..0..0..2....1..0..1..2..2....1..1..1..1..1....0..0..0..0..0
..2..1..2..1..2....1..2..1..0..1....1..1..1..1..1....0..0..0..0..0
..1..2..1..0..1....0..1..2..1..2....1..2..1..2..1....1..0..2..0..1
..2..2..1..1..1....2..1..0..0..2....2..1..0..1..0....2..0..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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