OFFSET
1,1
COMMENTS
Column 3 of A187600
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..31
EXAMPLE
Some solutions for 4X5
..0..0..2..0..2....0..0..0..2..2....0..0..1..0..1....0..0..1..1..0
..0..0..0..2..0....0..0..2..1..1....0..0..2..0..1....0..0..2..2..0
..0..0..2..2..2....0..0..0..0..1....0..0..2..2..1....0..0..0..2..1
..0..0..2..1..0....0..0..2..2..2....0..0..1..2..2....0..0..2..0..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 11 2011
STATUS
approved