OFFSET
1,1
COMMENTS
Row 7 of A231451
EXAMPLE
Some solutions for n=2
..0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0
..0..0..1....0..1..1....0..0..0....0..0..1....0..0..0....0..1..1....0..1..1
..0..1..1....1..0..0....0..1..1....0..1..1....0..0..0....1..1..1....1..1..1
..0..0..0....0..0..2....1..1..1....1..1..0....1..1..1....1..1..1....0..0..0
..2..2..0....2..2..1....1..1..1....1..0..0....2..2..1....1..1..1....2..2..2
..2..0..0....1..1..0....2..2..2....1..1..2....2..1..1....0..0..0....0..0..0
..1..1..2....0..0..1....0..0..0....1..2..2....3..3..3....0..0..1....2..2..2
..1..2..2....1..1..1....3..3..3....3..3..3....1..1..1....0..1..1....2..2..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 09 2013
STATUS
approved