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A205746 Number of (n+1)X(n+1) 0..2 arrays with every 2X2 subblock having the same number of equal edges as its horizontal neighbors and a different number from its vertical neighbors, and new values 0..2 introduced in row major order 0
14, 284, 8926, 383290, 28155907, 2917623614, 528507252157, 138111752968498, 64850139038419406, 44000031319042068352 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Diagonal of A205753

LINKS

Table of n, a(n) for n=1..10.

EXAMPLE

Some solutions for n=4

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

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

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

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

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

CROSSREFS

Sequence in context: A279113 A291099 A053101 * A281607 A027401 A259432

Adjacent sequences:  A205743 A205744 A205745 * A205747 A205748 A205749

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 30 2012

STATUS

approved

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Last modified December 7 22:29 EST 2019. Contains 329850 sequences. (Running on oeis4.)