OFFSET
1,1
COMMENTS
Column 6 of A185504
EXAMPLE
Some solutions for 3X7
..0..1..2..1..2..2..2....0..1..1..0..2..2..0....0..1..0..2..2..1..1
..0..0..0..0..2..1..1....0..0..1..1..2..2..1....0..1..0..2..2..1..2
..0..0..0..0..2..0..0....1..0..2..1..1..1..1....0..2..2..2..0..0..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 29 2011
STATUS
approved