OFFSET
1,1
COMMENTS
Column 5 of A186019.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..26
EXAMPLE
Some solutions for 4 X 7
..2..0..2..2..1..0..2....2..0..2..0..1..0..3....2..0..2..3..1..0..3
..0..0..0..0..1..2..1....0..0..0..0..0..1..3....0..0..0..0..2..2..1
..0..0..0..0..0..2..0....0..0..0..0..0..1..1....0..0..0..0..0..2..0
..0..0..0..1..0..2..1....0..0..0..1..0..2..0....0..0..0..1..0..2..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 10 2011
STATUS
approved