OFFSET
1,2
COMMENTS
Column 6 of A194540
EXAMPLE
Some solutions for 3X3
..0......0......0......0......0......0......0......0......0......0......0
..0.1....1.2....1.2....1.1....1.2....1.2....1.1....1.0....0.1....1.2....1.1
..2.2.0..1.0.2..0.3.3..2.0.0..2.3.4..2.0.0..2.2.3..2.1.3..2.3.0..2.3.1..2.0.1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Aug 28 2011
STATUS
approved