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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 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A205917.

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..14

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

Sequence in context: A262498 A257937 A205735 * A205908 A258679 A324647

Adjacent sequences:  A205913 A205914 A205915 * A205917 A205918 A205919

KEYWORD

nonn

AUTHOR

R. H. Hardin, Feb 01 2012

STATUS

approved

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Last modified January 27 12:01 EST 2020. Contains 331295 sequences. (Running on oeis4.)