OFFSET
1,2
COMMENTS
Diagonal of A232161
EXAMPLE
Some solutions for n=4
..3..2..0..3....0..1..3..2....2..1..3..2....1..2..3..2....3..0..2..1
..0..1..2..1....3..2..0..1....3..0..1..0....0..1..0..3....1..3..0..3
..3..0..3..2....1..3..2..3....1..3..2..1....2..3..2..1....2..1..2..1
..1..2..0..1....2..1..0..2....2..1..3..0....0..1..0..3....3..0..3..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 19 2013
STATUS
approved