OFFSET
1,1
COMMENTS
Column 5 of A200974
EXAMPLE
Some solutions for n=3
..0..0..0..0..2....0..0..0..4..4....0..0..0..1..6....0..0..0..1..1
..0..0..0..1..5....0..0..3..5..4....0..0..0..1..6....0..0..3..1..2
..0..0..0..2..5....0..0..2..6..6....0..0..1..2..6....0..0..2..3..4
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Nov 25 2011
STATUS
approved