OFFSET
1,1
COMMENTS
Diagonal of A183782
EXAMPLE
Some solutions with a(1,1)=0 for 3X3
..0..1..0....0..0..0....0..0..1....0..0..0....0..0..0....0..1..0....0..0..0
..0..0..0....1..0..0....0..0..0....0..0..1....0..0..0....0..0..0....0..1..0
..0..0..0....0..0..0....1..0..0....0..1..1....1..0..1....0..0..1....1..1..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 07 2011
STATUS
approved