OFFSET
1,1
COMMENTS
Column 7 of A278363.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..79
EXAMPLE
Some solutions for n=3
..0..0..0..0..0..0..1. .0..0..1..0..0..0..1. .1..0..0..0..0..0..1
..0..1..1..1..0..0..1. .1..1..1..0..0..1..1. .1..0..0..0..1..1..1
..1..0..0..1..0..1..0. .1..1..1..1..1..1..0. .1..0..0..0..1..1..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 19 2016
STATUS
approved