OFFSET
1,1
COMMENTS
Column 5 of A252088
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
EXAMPLE
Some solutions for n=4
..0..0..0..2..0..0..2....0..0..2..0..0..0..0....0..0..0..2..0..0..0
..2..0..0..0..0..0..0....0..0..0..0..0..0..0....0..0..0..0..0..0..2
..0..0..2..0..0..0..0....0..0..0..0..0..0..2....0..0..2..0..0..0..0
..0..0..0..0..0..2..0....2..0..0..2..0..0..0....0..0..0..0..0..0..0
..0..0..0..0..0..0..0....0..2..0..0..0..2..0....0..0..0..0..0..0..2
..0..2..0..0..0..0..0....0..0..2..0..0..0..0....0..2..0..0..2..0..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 13 2014
STATUS
approved