OFFSET
1,1
COMMENTS
Diagonal of A252679
EXAMPLE
Some solutions for n=4
..2..0..0..2..0..0....2..0..0..2..0..3....1..0..1..1..0..1....0..0..2..0..3..2
..2..1..2..2..3..1....1..0..1..1..0..1....1..1..3..1..1..3....0..1..1..0..1..1
..0..0..2..0..0..2....1..1..0..1..1..0....2..0..0..2..0..0....1..3..1..1..0..1
..2..0..0..2..0..0....2..0..0..2..0..3....1..0..1..1..0..1....0..0..2..0..3..2
..1..3..2..2..1..2....1..0..1..1..0..1....1..1..0..1..1..0....3..1..1..0..1..1
..0..0..2..0..0..2....1..1..0..1..1..0....2..3..0..2..0..3....1..0..1..1..0..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 20 2014
STATUS
approved