OFFSET
1,1
COMMENTS
Column 7 of A219128
EXAMPLE
Some solutions for n=3
..0..0..1..1..1..1..1....0..0..2..1..2..0..0....0..0..0..1..0..1..2
..0..0..2..1..1..0..1....0..0..1..1..2..0..2....0..0..0..0..0..1..1
..0..0..2..1..1..0..0....0..0..2..1..2..1..1....1..0..0..0..0..1..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Nov 12 2012
STATUS
approved