OFFSET
1,1
COMMENTS
Column 8 of A187940
EXAMPLE
Some solutions for 4X10
..0..0..0..1..1..0..1..1..0..1....0..1..0..0..1..0..0..0..1..1
..0..1..0..0..0..0..1..0..1..0....0..0..0..1..0..1..0..1..0..0
..0..0..0..0..1..1..1..1..0..1....0..1..0..1..0..0..0..1..0..1
..1..0..0..1..0..1..0..1..1..0....0..0..1..0..1..0..1..0..0..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 16 2011
STATUS
approved