OFFSET
1,1
COMMENTS
Column 5 of A272958.
EXAMPLE
Some solutions for n=5
..1..0..0..0..0. .1..0..1..0..0. .1..1..0..1..0. .0..0..1..1..1
..1..0..0..1..1. .1..0..1..0..1. .0..0..0..0..1. .0..0..0..0..0
..0..0..0..0..0. .0..0..0..0..1. .0..0..0..0..1. .1..0..0..0..0
..1..1..0..0..1. .0..0..0..0..0. .0..0..0..0..1. .1..0..1..0..0
..0..0..0..0..1. .1..1..0..0..0. .1..0..1..0..0. .1..0..0..1..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, May 11 2016
STATUS
approved