OFFSET
1,1
COMMENTS
Column 6 of A280284.
EXAMPLE
Some solutions for n=2
..0..1..0..2..1..1. .0..1..0..0..2..0. .0..1..2..2..0..1. .0..1..1..2..1..0
..0..0..1..0..2..0. .1..2..2..1..2..2. .2..1..2..1..2..2. .1..2..0..0..0..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 30 2016
STATUS
approved