OFFSET
1,1
COMMENTS
Diagonal of A232406
EXAMPLE
Some solutions for n=4
..0..1..0..1..2....0..1..2..1..0....2..1..0..1..2....2..1..0..1..0
..1..2..1..2..1....1..2..1..0..1....1..0..1..0..1....1..2..1..2..1
..0..1..2..1..0....2..1..2..1..2....2..1..2..1..0....0..1..2..1..0
..1..2..1..2..1....1..0..1..0..1....1..0..1..2..1....1..0..1..0..1
..0..1..0..1..0....0..1..2..1..0....0..1..2..1..0....2..1..0..1..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 23 2013
STATUS
approved