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A207757
Number of n X n 0..1 arrays avoiding 0 0 0 and 1 0 1 horizontally and 0 1 1 and 1 0 1 vertically
1
2, 16, 82, 663, 6552, 56651, 887114, 17141340, 265932767, 7838599272, 322656587622, 9334787856534, 545237703029106, 50069011902134767, 2724265960028933880, 333854434181630056441, 70233064417444890074531
OFFSET
1,1
COMMENTS
Diagonal of A207762
LINKS
EXAMPLE
Some solutions for n=4
..1..1..0..0....0..0..1..0....1..0..0..1....0..0..1..1....0..1..1..0
..0..1..1..0....1..1..1..0....0..1..0..0....1..1..1..0....0..1..0..0
..0..1..0..0....0..0..1..0....0..0..1..0....0..0..1..0....0..1..0..0
..0..1..0..0....0..0..1..0....1..0..0..1....0..0..1..1....1..1..0..0
CROSSREFS
Sequence in context: A207482 A207880 A207263 * A283951 A207340 A207768
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 19 2012
STATUS
approved