OFFSET
1,1
COMMENTS
Column 5 of A280217.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..250
EXAMPLE
Some solutions for n=4
..0..0..0..0..0. .0..0..1..0..0. .0..0..0..0..0. .0..0..0..1..1
..1..1..0..0..0. .1..1..1..0..0. .0..1..1..0..0. .0..0..0..1..2
..1..2..2..2..2. .1..1..0..2..1. .1..1..2..2..0. .2..0..0..2..2
..2..2..2..2..0. .1..0..0..1..1. .2..2..2..2..0. .0..0..0..2..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 29 2016
STATUS
approved