OFFSET
1,1
COMMENTS
Diagonal of A197442
EXAMPLE
Some solutions for n=4
..0..0..0..2....0..0..0..1....0..0..0..2....0..0..0..2....0..0..0..2
..2..2..1..0....2..2..2..1....2..2..0..2....2..2..2..0....2..2..1..2
..1..1..0..2....1..2..1..1....0..2..1..0....1..2..2..2....1..0..2..1
..2..0..0..2....2..0..0..0....2..1..1..2....1..0..1..2....2..0..2..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Oct 15 2011
STATUS
approved