OFFSET
1,1
COMMENTS
Column 5 of A187140
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..28
EXAMPLE
Some solutions for 4X6
..1..0..0..1..2..1....0..0..0..1..2..0....1..1..0..2..1..2....0..0..1..1..0..2
..0..0..1..1..2..1....0..0..1..2..1..0....0..0..0..0..1..2....0..0..1..2..1..2
..0..0..0..0..2..2....0..0..1..1..1..2....0..0..1..0..0..2....0..0..1..2..1..2
..0..0..0..1..1..2....0..0..0..0..0..2....0..0..0..0..1..1....0..0..0..1..0..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 05 2011
STATUS
approved