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A206674 Number of (n+1) X 7 0..2 arrays with no 2 X 2 subblock having the same number of clockwise edge increases as its horizontal neighbors or the same number of counterclockwise edge increases as its vertical neighbors. 1
160218, 1242930, 11368056, 97476666, 968502540, 9838056114, 108434010612, 1216758803376, 14276840963340, 169607787123510, 2060425946665152, 25191450280358046, 311526062730648630, 3864886491109553556 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 6 of A206676.
LINKS
EXAMPLE
Some solutions for n=4:
..0..1..0..0..0..2..1....0..0..0..2..0..2..2....2..2..2..2..1..0..2
..0..0..1..2..1..1..0....0..2..1..1..2..2..2....0..1..0..0..2..2..0
..0..0..1..0..1..1..1....2..0..0..2..2..2..0....2..2..0..0..2..2..0
..0..1..2..0..2..1..1....2..2..1..2..2..0..1....2..2..1..1..0..0..1
..1..2..2..1..1..2..0....2..2..0..0..0..1..1....1..0..1..1..0..0..2
CROSSREFS
Sequence in context: A251971 A013897 A205742 * A205518 A141816 A097626
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 11 2012
STATUS
approved

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Last modified April 24 14:54 EDT 2024. Contains 371960 sequences. (Running on oeis4.)