OFFSET
1,1
COMMENTS
Column 4 of A278435.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..132
EXAMPLE
Some solutions for n=2
..0..0..1..3. .1..3..1..1. .0..1..3..3. .1..3..3..3. .1..0..0..1
..3..1..3..2. .3..1..0..2. .3..0..3..2. .0..3..3..3. .3..0..2..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 22 2016
STATUS
approved