OFFSET
1,2
COMMENTS
Diagonal of A209684
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..34
EXAMPLE
Some.solutions.for.n=3
..0..0..1....0..0..0....0..1..0....0..0..1....0..1..1....0..1..1....0..1..1
..0..1..2....0..1..1....1..2..1....2..1..0....1..0..0....1..0..2....1..1..2
..1..2..0....2..1..1....2..1..1....0..2..0....0..0..1....2..2..0....1..2..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 11 2012
STATUS
approved