OFFSET
1,1
COMMENTS
Diagonal of A251845
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..17
EXAMPLE
Some solutions for n=4
..3..1..0..0..1..0....1..0..0..1..3..0....0..1..0..0..1..0....1..0..0..1..0..3
..0..1..0..3..1..0....3..3..0..1..0..0....1..2..1..1..2..1....2..1..1..2..1..1
..1..2..1..1..2..1....2..1..1..2..1..1....0..1..0..3..1..0....1..3..0..1..0..0
..0..1..0..0..1..0....1..0..3..1..0..0....0..1..0..0..1..3....1..0..0..1..0..0
..3..1..0..3..1..0....1..0..0..1..3..0....1..2..1..1..2..3....2..1..1..2..1..1
..1..2..1..1..2..1....2..1..1..2..1..1....0..1..0..0..1..0....1..0..0..1..0..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 09 2014
STATUS
approved