OFFSET
1,1
COMMENTS
Diagonal of A206255
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..17
EXAMPLE
Some solutions for n=4
..3..3..0..1..0....1..2..3..2..2....3..3..2..1..3....0..0..3..1..3
..0..0..0..1..0....0..0..0..0..0....0..0..0..0..0....3..0..0..0..0
..3..2..0..3..0....2..1..3..2..1....1..0..2..0..1....2..0..3..0..1
..0..0..0..1..0....0..0..0..0..0....1..0..1..0..2....3..0..0..0..3
..2..3..0..1..0....1..0..3..3..3....2..0..1..0..3....3..0..3..0..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 05 2012
STATUS
approved