OFFSET
1,1
COMMENTS
Column 3 of A187283
EXAMPLE
Some solutions for 4X5
..2..0..0..1..2....2..0..1..1..0....0..1..0..0..1....2..1..1..2..1
..0..0..1..0..0....0..0..1..1..2....0..1..0..2..1....0..2..0..2..1
..1..0..1..1..1....2..0..1..1..0....1..0..1..1..1....1..1..2..2..2
..1..0..0..0..1....0..0..1..1..2....0..1..2..1..1....1..2..1..2..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 07 2011
STATUS
approved