OFFSET
1,2
COMMENTS
Column 6 of A277767.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..92
EXAMPLE
Some solutions for n=3
..0..1..2..0..1..2. .0..1..0..2..1..2. .0..1..2..0..1..2. .0..1..0..2..2..1
..2..1..0..0..2..0. .2..2..1..0..0..0. .2..0..2..1..2..0. .2..2..2..1..0..0
..0..0..2..2..1..1. .1..0..2..1..1..2. .2..1..1..2..0..1. .0..1..0..0..2..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Oct 29 2016
STATUS
approved