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A205519 Number of (n+1)X8 0..2 arrays with the number of clockwise edge increases in every 2X2 subblock differing from each horizontal or vertical neighbor 1
750426, 43434216, 3703472454, 291860355624, 23817299324910, 1873315597879056, 153727495029223899, 12064169543471230344, 990342568808823237237, 77725844134691110148598, 6379845168269713848869523 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A205520

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..23

EXAMPLE

Some solutions for n=4

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

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

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

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

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

CROSSREFS

Sequence in context: A352345 A205743 A206675 * A166001 A253374 A204229

Adjacent sequences:  A205516 A205517 A205518 * A205520 A205521 A205522

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 28 2012

STATUS

approved

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Last modified October 5 23:01 EDT 2022. Contains 357261 sequences. (Running on oeis4.)