OFFSET
1,2
COMMENTS
Column 3 of A194540
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..12
EXAMPLE
Some solutions for 3X3
..0......0......0......0......0......0......0......0......0......0......0
..1.2....1.1....1.2....1.2....1.1....1.2....1.2....1.2....1.0....1.2....1.1
..3.3.0..0.0.2..2.3.1..0.3.0..2.0.1..3.2.1..0.3.1..2.1.3..2.1.2..2.0.1..2.2.1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Aug 28 2011
STATUS
approved