OFFSET
1,1
COMMENTS
Column 7 of A224651.
EXAMPLE
Some solutions for n=2
..0..1..0..0..1..0..1..1..0....0..0..1..1..1..0..1..0..0
..1..0..1..1..0..0..0..0..0....1..1..0..0..0..0..0..0..0
..1..0..0..1..0..1..1..0..1....0..0..0..0..0..1..0..1..1
..0..0..1..0..0..1..1..0..1....0..0..1..1..1..0..1..0..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 13 2013
STATUS
approved