OFFSET
1,1
COMMENTS
Column 3 of A221192
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..21
EXAMPLE
Some solutions for n=3
..0..2..1....2..3..0....0..0..1....1..2..0....2..0..0....2..1..1....0..0..2
..2..1..0....0..1..2....0..4..0....2..1..0....0..3..1....2..1..1....1..2..0
..2..1..0....0..0..1....1..2..1....1..0..2....0..0..3....0..1..0....3..1..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 04 2013
STATUS
approved