OFFSET
1,1
COMMENTS
Column 4 of A278634.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
EXAMPLE
Some solutions for n=2
..2..0..1..0. .1..2..2..1. .1..1..2..0. .0..0..2..2. .2..0..2..1
..0..0..1..2. .0..2..2..1. .1..1..1..2. .0..0..2..0. .0..0..1..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 24 2016
STATUS
approved