OFFSET
1,2
COMMENTS
Diagonal of A232908
EXAMPLE
Some solutions for n=3
..2..1..0..2....0..1..0..2....0..1..1..0....2..1..0..2....2..1..1..0
..0..2..1..0....2..0..1..0....2..2..1..0....2..1..1..0....0..2..1..2
..2..1..0..0....1..2..2..0....0..1..2..2....2..1..1..0....0..1..2..2
..0..2..1..0....0..1..1..2....0..2..1..0....0..2..1..0....0..0..1..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 02 2013
STATUS
approved