OFFSET
1,2
COMMENTS
Row 3 of A267724.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..38
EXAMPLE
Some solutions for n=4
..0..0..0..0....0..0..2..2....0..0..1..1....0..0..0..0....0..0..2..2
..2..2..1..1....1..1..0..0....1..1..2..2....2..2..1..1....1..1..1..1
..1..1..2..2....1..1..2..2....2..2..0..0....2..2..1..1....0..0..2..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 20 2016
STATUS
approved