OFFSET
1,1
COMMENTS
Column 7 of A210788
EXAMPLE
Some solutions for n=4
..3..4..3..1..4..1..4....3..4..2..1..3..3..1....2..2..3..3..1..2..4
..4..3..1..2..1..3..4....1..3..1..4..2..3..4....1..4..3..1..4..2..1
..3..1..3..1..3..1..2....3..2..4..1..4..4..1....4..1..4..4..1..4..3
..1..4..1..3..2..3..4....1..3..1..3..1..2..4....2..4..1..2..4..3..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 26 2012
STATUS
approved