OFFSET
1,1
COMMENTS
Row 7 of A219852.
EXAMPLE
Some solutions for n=3
..1..1..1....1..0..0....1..0..0....1..1..0....1..0..0....1..1..0....0..0..0
..1..1..1....1..0..1....0..0..0....0..0..0....1..0..1....0..0..0....0..0..0
..1..1..1....1..1..1....0..0..0....0..0..0....1..2..2....0..0..1....1..0..0
..1..1..1....1..1..1....1..0..0....2..0..0....2..2..2....1..1..1....1..0..1
..1..0..0....1..0..0....1..0..0....2..0..2....2..2..2....1..0..0....1..0..0
..1..0..1....1..0..0....1..0..1....2..2..2....2..2..2....2..0..0....2..0..1
..1..1..1....1..0..0....1..0..0....2..2..2....2..2..2....2..0..2....2..1..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Nov 29 2012
STATUS
approved