OFFSET
1,1
COMMENTS
Diagonal of A202317
EXAMPLE
Some solutions for n=3
..1..1..1..1..1....0..1..0..1..1....1..1..1..1..1....0..1..1..0..1
..0..1..1..0..1....1..0..1..0..1....1..1..1..1..0....1..1..1..1..1
..1..1..0..1..1....1..1..0..1..0....0..1..1..0..1....0..1..1..1..0
..0..1..1..0..1....1..1..1..1..1....1..1..0..1..0....1..1..1..1..1
..1..1..0..1..0....0..1..0..1..0....0..1..1..0..1....0..1..1..1..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Dec 16 2011
STATUS
approved