OFFSET
1,2
COMMENTS
Row 7 of A221087
EXAMPLE
Some solutions for n=3
..0..2..0....0..2..0....0..2..0....0..2..0....0..2..0....0..2..0....0..2..0
..1..1..0....1..1..0....1..1..0....1..1..1....1..1..1....1..1..0....1..1..1
..2..2..0....2..3..0....1..2..1....0..4..1....0..4..0....1..2..2....0..3..0
..1..4..0....1..1..0....1..2..1....1..0..1....1..0..0....0..2..1....1..3..1
..0..1..1....0..4..0....0..3..0....0..3..0....1..3..1....0..3..0....0..1..0
..0..3..1....1..2..0....1..3..1....1..3..0....1..1..0....0..2..0....2..2..1
..0..1..1....1..1..1....0..1..0....0..1..1....1..3..0....1..2..1....0..2..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 01 2013
STATUS
approved