OFFSET
1,1
COMMENTS
Column 4 of A204530
EXAMPLE
Some solutions for n=3
..0..0..1..1..1..0....0..0..0..0..0..0....0..1..0..0..1..1....0..0..0..0..1..2
..0..2..3..3..0..0....1..2..1..0..1..3....2..2..3..2..1..0....3..3..0..3..2..2
..2..2..2..2..1..0....1..3..3..1..1..3....2..2..2..2..2..2....0..1..2..2..2..2
..2..0..1..1..1..1....0..0..0..0..1..1....1..1..2..1..0..2....1..1..1..1..1..3
..3..2..2..0..2..2....3..3..0..3..1..1....3..2..2..3..1..1....3..1..2..0..2..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 15 2012
STATUS
approved