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A206187 Number of (n+1) X 8 0..3 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. 0
62623348, 5614757320, 2345626036136, 1565902419680820, 1078848431799509828, 747343697917253418576 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A206188.

LINKS

Table of n, a(n) for n=1..6.

EXAMPLE

Some solutions for n=4:

..1..1..3..1..1..3..1..0....0..1..0..1..1..0..1..0....1..3..2..1..3..0..2..2

..0..2..1..3..2..1..0..2....0..0..0..1..2..0..0..0....2..2..2..1..3..0..2..1

..0..0..1..2..2..3..0..1....3..3..0..1..2..3..3..3....3..1..1..1..3..0..2..2

..3..1..0..1..3..0..1..0....2..1..0..3..3..2..1..0....0..0..0..1..3..0..0..0

..2..2..1..0..0..2..0..1....1..1..0..3..0..2..1..0....1..3..0..1..3..3..3..0

CROSSREFS

Sequence in context: A203943 A125063 A205658 * A205369 A157855 A017539

Adjacent sequences: A206184 A206185 A206186 * A206188 A206189 A206190

KEYWORD

nonn

AUTHOR

R. H. Hardin, Feb 04 2012

STATUS

approved

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Last modified December 1 00:42 EST 2022. Contains 358453 sequences. (Running on oeis4.)