OFFSET
1,1
COMMENTS
Column 1 of A214011.
EXAMPLE
Some solutions for n=3:
..1..0..0....0..1..0....0..0..0....0..1..0....0..0..0....0..1..0....0..0..1
..0..1..1....0..1..0....0..0..1....1..0..0....0..1..1....0..0..1....1..0..0
..0..0..2....0..0..1....0..0..2....0..1..0....0..0..1....0..0..0....0..0..1
CROSSREFS
KEYWORD
nonn,more
AUTHOR
R. H. Hardin, Jun 30 2012
STATUS
approved