OFFSET
1,2
COMMENTS
Column 7 of A230819
EXAMPLE
Some solutions for n=4
..0..2..1..0..1..0..2....0..2..1..0..2..0..1....0..2..1..0..0..2..1
..1..1..0..2..2..0..1....1..2..0..1..1..0..2....1..0..2..2..1..2..0
..2..0..1..1..2..0..1....2..0..1..2..0..0..1....2..2..1..0..2..1..1
..0..1..2..0..1..0..2....1..0..2..0..1..2..0....0..1..2..0..1..0..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Oct 30 2013
STATUS
approved