OFFSET
1,1
COMMENTS
Diagonal of A184548
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..68
EXAMPLE
Some solutions for 4X4
..0..0..1..1....0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..1
..0..0..1..1....0..0..0..1....0..0..0..0....0..0..0..1....0..1..1..1
..1..1..0..1....0..0..1..1....0..0..1..1....0..0..0..1....0..1..1..1
..1..1..0..1....0..0..1..1....1..1..0..0....0..0..0..1....0..1..1..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 16 2011
STATUS
approved