OFFSET
1,1
COMMENTS
Column 6 of A183827
EXAMPLE
Some solutions with upper left block zero for 3X7
..0..0..2..0..0..0..3....0..0..0..0..1..0..0....0..0..0..0..1..0..2
..0..0..2..2..0..0..0....0..0..3..2..0..0..1....0..0..1..2..0..0..1
..2..0..1..0..1..0..0....2..0..1..0..2..0..2....1..0..3..0..3..0..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 07 2011
STATUS
approved