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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
OFFSET
1,1
COMMENTS
Diagonal of A205753
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
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 30 2012
STATUS
approved