OFFSET
1,2
COMMENTS
Diagonal of A208258
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..13
EXAMPLE
Some solutions for n=4
..0..0..0..1....0..0..0..0....0..0..1..2....0..0..0..0....0..0..0..1
..1..1..0..1....1..0..1..0....0..2..2..0....0..1..0..2....2..1..0..2
..2..2..1..0....2..2..1..2....2..0..0..1....2..0..1..2....2..0..1..2
..1..1..0..1....0..0..2..0....2..1..2..1....0..2..1..0....1..0..1..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 24 2012
STATUS
approved