OFFSET
1,1
COMMENTS
Diagonal of A205823.
EXAMPLE
Some solutions for n=4:
..2..2..1..0..0....1..2..0..2..2....0..1..0..2..2....2..0..2..2..1
..1..0..1..2..1....0..2..1..1..0....2..2..0..1..0....2..1..1..0..0
..1..2..1..0..0....1..2..0..2..2....0..1..0..2..2....2..0..2..2..1
..1..0..1..2..1....0..2..1..1..0....2..2..0..1..0....1..1..1..0..0
..1..2..1..0..0....1..2..0..2..2....0..1..0..2..0....2..0..2..2..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 01 2012
STATUS
approved