OFFSET
1,1
COMMENTS
Diagonal of A204417
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..21
EXAMPLE
Some solutions for n=3
..1..1..1..2..0....0..0..2..2..2....0..0..2..0..1....2..2..1..1..0
..1..0..1..2..1....0..1..0..1..2....0..0..0..1..0....0..0..1..2..1
..0..1..2..1..2....1..2..2..1..0....0..1..2..2..1....0..1..2..2..2
..1..1..0..1..2....2..0..1..2..1....1..0..1..2..2....0..0..0..1..2
..0..0..1..2..0....0..1..2..1..2....0..1..0..1..2....2..0..1..2..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 15 2012
STATUS
approved