OFFSET
1,1
COMMENTS
Column 7 of A207479
EXAMPLE
Some solutions for n=4
..3..3..2..0..0..2..1....1..0..2..1..0..2..0....1..3..2..0..0..0..0
..1..3..1..0..0..1..1....2..2..1..0..3..1..0....1..0..2..3..3..3..2
..2..3..3..1..1..0..3....2..0..0..2..1..3..1....3..0..3..0..3..0..2
..3..0..1..1..1..3..2....3..3..0..1..2..2..2....2..3..0..0..0..3..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 18 2012
STATUS
approved