OFFSET
1,1
COMMENTS
Column 4 of A183483
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..200
EXAMPLE
Some solutions for 6X4
..0..0..0..0....0..0..1..1....0..0..0..0....0..2..1..0....0..0..0..0
..2..2..0..2....1..0..1..1....1..2..0..0....0..2..1..0....0..0..1..1
..0..0..0..2....1..0..0..0....1..2..0..0....0..0..0..0....0..0..1..1
..0..0..0..0....0..0..0..0....0..0..0..0....0..0..1..1....0..0..0..0
..0..0..0..2....2..1..2..2....0..0..0..2....0..0..0..0....1..1..0..1
..1..1..0..2....2..1..2..2....2..2..0..2....1..1..0..0....1..1..0..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 05 2011
STATUS
approved