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A205414
Number of (n+2)X9 0..2 arrays with every 3X3 subblock having three equal elements in a row horizontally, vertically or nw-to-se diagonally exactly two ways, and new values 0..2 introduced in row major order
0
109757792, 8606465750, 735422130329, 36803297869771, 3148208484619590
OFFSET
1,1
COMMENTS
Column 7 of A205415
EXAMPLE
Some solutions for n=3
..0..0..1..0..1..2..0..0..0....0..0..0..0..0..0..0..1..0
..2..0..1..0..1..1..0..1..1....0..0..1..1..2..1..2..1..0
..1..1..1..0..0..0..0..0..1....0..1..1..1..1..1..1..1..0
..2..2..1..0..1..1..0..0..1....1..1..1..0..0..0..0..0..0
..2..0..1..1..1..1..0..1..1....1..1..0..0..0..1..2..1..0
CROSSREFS
Sequence in context: A184572 A184783 A204953 * A208090 A165698 A345631
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 26 2012
STATUS
approved