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A206276
Number of (n+1) X 8 0..2 arrays with no 2 X 2 subblock having the number of clockwise edge increases equal to the number of counterclockwise edge increases in its adjacent leftward or upward neighbors.
1
309057, 408198, 1528920, 6254364, 33297948, 167821686, 964315869, 4586324364, 22656222912, 107944182948, 562553467470, 2820402520110, 14881797312963, 75177032639256, 401169616195323, 2040321270376866, 10870614344272152
OFFSET
1,1
COMMENTS
Column 7 of A206277.
LINKS
EXAMPLE
Some solutions for n=4:
..0..0..2..2..0..0..2..1....0..2..2..2..1..2..2..1....1..2..2..1..2..0..0..1
..1..1..0..0..2..2..0..0....0..2..2..0..2..2..2..1....0..2..2..2..0..0..0..1
..1..1..0..0..2..2..0..0....2..0..0..2..2..2..0..2....2..0..2..2..0..0..1..2
..0..0..1..1..0..0..1..1....0..0..0..2..2..1..2..2....2..2..0..0..1..1..2..2
..0..0..1..1..0..0..1..1....0..0..1..0..0..2..2..2....2..2..0..0..1..1..1..0
CROSSREFS
Sequence in context: A234188 A226364 A359846 * A251304 A127491 A205204
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 05 2012
STATUS
approved