OFFSET
1,2
COMMENTS
Column 6 of A267742.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..32
EXAMPLE
Some solutions for n=4
..0..0..0..1..1..2....0..0..0..0..1..2....0..0..0..1..2..2....0..1..1..2..2..2
..0..1..1..2..2..3....1..1..1..1..2..2....0..1..1..2..3..3....2..2..2..3..3..3
..1..1..2..3..3..3....2..2..2..3..3..0....1..1..2..3..3..0....3..3..0..0..0..1
..2..2..3..3..0..0....3..3..3..3..0..1....2..2..3..3..0..1....3..0..0..1..1..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 20 2016
STATUS
approved