OFFSET
1,1
COMMENTS
Column 5 of A220204
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..19
EXAMPLE
Some solutions for n=3
..2..1..0..0..0....1..1..1..1..1....2..2..2..0..0....0..0..0..0..0
..2..1..0..0..0....2..1..1..1..1....2..2..2..0..0....1..0..0..0..0
..2..2..1..0..0....3..1..1..1..1....3..3..2..0..0....1..1..1..2..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Dec 07 2012
STATUS
approved