OFFSET
1,1
COMMENTS
Column 5 of A187317
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..74
EXAMPLE
Some solutions for 4X7 with a(1,1)=0
..0..0..1..0..1..1..0....0..0..1..0..0..0..1....0..0..1..1..0..0..1
..0..0..1..0..0..1..0....0..0..1..0..0..1..1....0..0..1..0..1..0..1
..0..0..1..1..1..1..1....0..0..1..1..1..1..1....0..0..1..1..0..1..0
..0..0..1..1..0..0..0....0..0..1..0..0..0..1....0..0..1..0..0..1..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 08 2011
STATUS
approved