OFFSET
1,1
COMMENTS
Column 5 of A281129.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..113
EXAMPLE
Some solutions for n=3
..0..1..2..2..1. .0..1..1..1..0. .0..1..2..0..2. .0..1..2..2..0
..2..0..1..1..2. .0..2..0..2..1. .0..2..1..2..0. .0..1..0..1..2
..0..2..0..2..1. .2..1..0..2..0. .2..1..0..1..1. .0..2..2..0..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 15 2017
STATUS
approved