OFFSET
1,1
COMMENTS
Diagonal of A186609
EXAMPLE
Some solutions for 6X6
..0..0..0..1..1..0....0..0..0..0..0..0....0..0..0..0..0..0....0..0..1..0..0..1
..0..0..0..1..1..0....0..0..0..0..0..0....0..0..0..0..0..0....0..0..0..0..0..1
..0..0..0..0..0..0....0..0..0..0..0..1....1..0..0..0..0..0....0..0..0..0..0..0
..0..0..0..0..0..0....1..0..0..0..0..0....1..0..0..0..0..0....0..0..0..0..0..1
..0..0..0..0..0..0....0..0..0..0..0..0....1..0..0..0..0..0....0..0..0..0..0..0
..0..0..0..0..0..0....0..0..0..0..0..0....1..0..0..0..0..0....0..0..0..0..0..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 24 2011
STATUS
approved