OFFSET
1,2
COMMENTS
Diagonal of A233026
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..11
EXAMPLE
Some solutions for n=4
..0..0..2..3....0..0..2..3....0..0..2..2....0..2..2..0....0..2..0..0
..0..2..2..2....2..0..2..2....2..0..0..2....0..2..0..2....2..0..2..2
..0..2..3..3....2..2..0..2....0..0..0..0....0..2..2..2....0..2..0..2
..0..2..2..3....0..0..2..2....0..0..0..0....0..2..0..2....2..2..0..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 03 2013
STATUS
approved