OFFSET
1,1
COMMENTS
Column 6 of A275228.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
EXAMPLE
Some solutions for n=4
..0..1..2..1..2..1. .0..1..2..0..0..0. .0..1..2..1..1..1. .0..1..2..1..0..1
..1..2..1..2..1..2. .2..2..1..2..1..2. .1..2..1..2..0..0. .1..2..1..2..1..0
..2..1..0..1..0..0. .0..1..2..1..2..1. .2..1..2..0..2..2. .2..1..2..1..2..2
..1..2..1..2..1..2. .1..0..0..2..1..2. .1..2..1..2..1..1. .0..0..1..2..1..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jul 20 2016
STATUS
approved