OFFSET
1,1
COMMENTS
Column 2 of A214595
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..66
EXAMPLE
Some solutions for n=4
.....1........1........1........1........1........1........1........1
....1.1......2.0......0.2......0.2......0.2......2.0......0.2......1.1
...2.0.1....2.0.1....1.2.0....2.1.0....1.1.1....2.1.0....1.2.0....0.2.1
..0.2.1.1..1.0.1.2..0.2.2.0..1.2.0.1..2.1.1.0..0.1.1.2..0.2.1.1..0.0.2.2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Jul 22 2012
STATUS
approved