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A207482
Number of n X n 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 1 1 and 1 1 0 vertically
0
2, 16, 82, 530, 4041, 26980, 268275, 2555724, 30415590, 441509828, 8373148373, 212120269939, 7313507695094, 322966671937819, 18599518847838594, 1383707197762948671, 137553485485585731530, 16701189911469748208243
OFFSET
1,1
COMMENTS
Diagonal of A207488
EXAMPLE
Some solutions for n=4
..1..0..1..0....0..0..1..0....0..0..1..0....1..1..0..0....1..1..0..1
..0..0..1..0....0..1..0..1....0..0..1..0....0..1..0..0....0..0..1..0
..1..1..1..1....0..0..1..0....1..1..1..0....0..1..0..1....0..1..0..1
..0..0..1..0....0..1..0..1....0..0..1..0....0..1..0..0....1..0..1..0
CROSSREFS
Sequence in context: A234004 A053587 A052346 * A207880 A207263 A207757
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 18 2012
STATUS
approved