OFFSET
1,1
COMMENTS
Diagonal of A252574
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..15
EXAMPLE
Some solutions for n=4
..0..0..2..0..0..1....0..0..2..0..0..2....2..1..3..1..1..3....1..0..0..2..0..0
..2..0..0..2..0..0....3..1..2..3..2..2....2..0..0..2..0..0....0..1..0..0..2..0
..2..3..2..2..3..2....0..2..0..0..2..0....0..2..0..0..2..0....2..2..3..1..2..3
..0..0..2..0..0..1....0..0..2..0..0..1....2..2..3..2..2..3....2..0..0..2..0..0
..1..0..0..2..0..0....3..1..1..3..2..2....1..0..0..1..0..0....0..2..0..0..2..0
..2..3..2..2..3..2....0..2..0..0..2..0....0..1..0..0..1..0....1..2..3..2..1..3
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 18 2014
STATUS
approved