OFFSET
1,1
COMMENTS
Diagonal of A184614
EXAMPLE
Some solutions for 4X4
..1..1..0..1....1..1..1..1....1..0..0..0....0..0..1..1....0..1..0..1
..1..0..1..1....1..1..0..0....0..1..0..0....1..1..1..1....0..1..0..1
..0..1..0..1....1..1..1..1....1..1..0..1....1..0..1..0....1..1..0..1
..0..0..1..0....0..1..0..1....0..0..0..1....1..1..1..1....1..1..1..1
...
...3..2..3.......4..3..2.......2..1..0.......2..3..4.......2..2..2...
...2..2..3.......4..3..2.......3..2..1.......3..3..3.......3..2..2...
...1..2..2.......3..3..3.......2..1..2.......3..3..3.......4..3..3...
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 18 2011
STATUS
approved