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A205916
Number of (n+1) X 8 0..2 arrays with every 2 X 2 subblock having the same number of clockwise edge increases as its horizontal neighbors and the same number of counterclockwise edge increases as its vertical neighbors.
1
1112664, 17051166, 976932162, 63265158237, 4140502079766, 274342874332980, 18225426305218983, 1214621133289445748, 80992571869156601646, 5405796006447301221615, 360832630784933797787058
OFFSET
1,1
COMMENTS
Column 7 of A205917.
LINKS
EXAMPLE
Some solutions for n=4:
..0..2..0..2..0..0..1..2....0..0..0..1..0..0..1..1....2..1..2..1..2..1..1..2
..2..2..2..2..2..0..1..2....2..2..0..0..0..1..1..2....2..1..2..1..1..1..2..2
..0..2..1..2..0..0..1..1....2..0..0..1..0..1..2..2....1..1..1..1..0..1..1..1
..0..2..1..2..0..1..1..2....0..0..1..1..0..1..1..2....0..1..0..0..0..0..0..1
..0..2..1..2..0..0..1..1....1..1..1..0..0..1..2..2....0..0..0..1..0..1..1..1
CROSSREFS
Cf. A205917.
Sequence in context: A262498 A257937 A205735 * A205908 A258679 A324647
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 01 2012
STATUS
approved