OFFSET
1,1
COMMENTS
Column 4 of A278414.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
EXAMPLE
Some solutions for n=2
..0..2..0..0. .2..1..2..2. .2..1..0..0. .0..2..2..1. .2..2..0..1
..0..1..2..2. .2..0..0..2. .2..1..0..0. .1..2..1..2. .2..2..0..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 21 2016
STATUS
approved