OFFSET
1,1
COMMENTS
Diagonal of A205206
EXAMPLE
Some solutions for n=4
..0..2..2..2..0....0..2..1..2..2....2..1..1..2..2....2..0..0..1..1
..1..2..0..2..2....2..2..1..2..1....1..0..2..1..2....2..0..1..2..1
..2..0..2..2..2....1..1..2..2..2....2..1..2..2..2....2..0..0..1..2
..2..2..0..2..2....2..2..2..1..2....0..2..1..2..1....2..0..1..2..2
..0..2..2..2..2....1..1..2..2..2....2..1..2..2..2....2..0..2..2..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 23 2012
STATUS
approved