OFFSET
1,2
COMMENTS
Column 6 of A201142
EXAMPLE
Some solutions for n=4
..0..0..0..0..3..4....0..0..1..1..2..3....0..0..0..1..2..4....0..0..0..0..3..3
..1..1..2..2..3..4....0..0..1..2..3..3....0..1..1..2..3..4....1..1..2..2..4..4
..1..1..2..2..4..5....1..2..4..4..5..5....1..2..2..3..3..4....1..2..3..3..4..5
..3..3..4..5..5..5....2..3..4..4..5..5....3..4..5..5..5..5....1..2..4..5..5..5
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Nov 27 2011
STATUS
approved