OFFSET
1,2
COMMENTS
Column 3 of A269479.
EXAMPLE
Some solutions for n=4
..0..1..3. .0..1..0. .2..1..1. .0..1..2. .2..1..0. .1..0..2. .0..1..2
..1..3..3. .1..2..2. .0..1..2. .0..3..3. .3..1..0. .1..3..2. .1..2..3
..2..2..1. .2..3..3. .0..2..3. .2..3..1. .3..2..1. .3..2..3. .3..0..2
..0..2..0. .3..1..0. .0..3..3. .2..1..0. .3..2..0. .0..1..0. .3..0..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 27 2016
STATUS
approved