OFFSET
1,1
COMMENTS
Column 3 of A208581
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..40
EXAMPLE
Some solutions for n=4
..0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..1....0..0..0
..1..1..0....1..1..0....1..2..1....1..1..0....1..1..0....1..0..0....1..1..0
..2..0..1....2..0..1....0..0..0....0..1..0....0..2..1....0..1..0....0..1..0
..0..1..0....1..0..2....3..1..0....0..1..0....0..0..0....0..1..0....0..1..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 29 2012
STATUS
approved