OFFSET
1,1
COMMENTS
Column 7 of A267788.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..46
EXAMPLE
Some solutions for n=3
..0..0..1..0..0..0..1....0..0..0..0..0..1..0....0..0..0..1..0..0..0
..1..1..1..1..1..0..1....1..1..1..1..1..1..0....0..0..1..1..0..1..1
..1..0..0..1..0..1..0....1..0..0..0..1..0..1....1..1..1..0..1..1..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 20 2016
STATUS
approved