OFFSET
1,2
COMMENTS
Diagonal of A232376
EXAMPLE
Some solutions for n=4
..1..2..3..2....3..2..3..0....2..3..0..3....1..0..3..2....0..3..0..3
..3..2..3..2....1..0..1..0....0..1..0..2....1..2..1..2....2..1..2..1
..3..2..3..0....1..0..1..0....3..2..3..2....1..0..1..0....0..1..2..3
..1..0..1..2....1..2..3..0....3..2..1..2....3..2..1..0....0..3..2..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 23 2013
STATUS
approved