OFFSET
1,1
COMMENTS
Diagonal of A251974.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..12
EXAMPLE
Some solutions for n=2
..3..2..3....1..0..2....1..0..1....2..1..2....1..0..2....1..0..1....0..0..1
..0..1..0....0..1..3....3..0..3....2..1..3....1..1..1....2..2..3....0..3..1
..3..2..3....1..3..3....1..3..1....3..3..3....3..3..3....3..1..3....2..3..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 12 2014
STATUS
approved