OFFSET
1,2
COMMENTS
Column 5 of A277945.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
EXAMPLE
Some solutions for n=3
..0..1..0..0..2. .0..1..2..2..1. .0..1..0..0..2. .0..2..1..0..2
..1..2..0..1..1. .0..1..0..0..1. .1..2..0..1..0. .1..0..0..1..0
..1..0..0..0..0. .1..2..2..0..2. .1..1..0..2..1. .0..2..2..1..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 05 2016
STATUS
approved