OFFSET
1,1
COMMENTS
Column 5 of A219373
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..27
EXAMPLE
Some solutions for n=3
..0..0..0..1..1....2..2..2..2..3....1..1..1..1..0....0..0..1..1..0
..0..0..0..0..1....2..0..0..2..0....1..1..1..0..0....0..0..1..0..0
..0..3..0..1..1....0..0..0..0..0....1..3..3..3..0....0..2..3..1..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Nov 19 2012
STATUS
approved