OFFSET
1,1
COMMENTS
Column 3 of A186629
EXAMPLE
Some solutions for 4X5
..0..0..0..0..1....0..0..2..0..3....0..0..2..0..0....0..0..0..0..3
..0..0..1..0..1....0..0..2..0..2....0..0..0..0..1....0..0..3..0..3
..0..2..3..0..0....0..2..0..0..0....0..0..0..0..1....0..2..3..0..1
..0..0..2..0..2....0..2..2..0..3....0..2..2..0..1....0..0..2..0..3
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 24 2011
STATUS
approved