OFFSET
1,1
COMMENTS
Row 4 of A240260
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..18
EXAMPLE
Some solutions for n=4
..2..2..0..0....0..0..0..0....0..0..0..2....2..2..2..2....2..0..0..2
..2..2..0..2....0..0..2..2....2..2..2..2....2..2..2..0....2..0..2..2
..0..2..0..0....0..2..0..0....2..2..2..0....0..2..0..0....2..2..2..2
..2..2..2..2....0..2..2..0....0..0..2..0....0..0..3..2....0..2..0..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 03 2014
STATUS
approved