OFFSET
1,1
COMMENTS
Diagonal of A229380.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..13
EXAMPLE
Some solutions for n=4
..1..0..1..0....2..0..0..2....2..0..2..1....1..2..2..1....1..2..1..2
..1..0..1..0....1..2..2..1....1..0..1..2....2..0..1..0....0..0..0..0
..2..0..1..2....1..0..1..2....1..0..1..0....1..0..2..0....2..1..2..1
..1..2..2..1....1..2..1..0....2..0..1..2....1..0..1..2....0..0..0..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Sep 21 2013
STATUS
approved