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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
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
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 04 2012
STATUS
approved

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Last modified April 25 06:35 EDT 2024. Contains 371964 sequences. (Running on oeis4.)