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A205742
Number of 7X(n+1) 0..2 arrays with every 2 X 2 subblock having the same number of clockwise edge increases as its horizontal neighbors and no 2 X 2 subblock having the same number of counterclockwise edge increases as its vertical neighbors.
1
160218, 97380, 526680, 4116576, 33070572, 276139080, 2333010360, 20252939448, 177288165936, 1586346079800, 14299637864256, 131222784826716, 1212181534620348, 11354938195735176, 106955852324919060
OFFSET
1,1
COMMENTS
Row 6 of A205736.
LINKS
EXAMPLE
Some solutions for n=4
..2..2..1..2..0....0..0..0..0..1....1..2..1..0..1....0..0..1..2..1
..0..2..1..2..0....1..0..2..0..1....2..1..2..1..0....1..0..1..2..0
..1..0..2..1..2....2..1..0..1..2....1..1..1..1..1....0..1..2..1..0
..1..0..2..1..2....1..1..1..1..1....1..1..1..1..1....0..1..2..1..2
..2..1..0..2..0....1..1..1..1..1....2..1..2..1..2....1..2..1..0..2
..2..1..0..2..0....1..2..1..0..1....0..2..0..2..1....1..1..1..1..1
..0..2..1..0..1....2..1..0..2..0....2..2..2..2..1....1..1..1..1..1
CROSSREFS
Sequence in context: A202936 A251971 A013897 * A206674 A205518 A141816
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 30 2012
STATUS
approved