OFFSET
1,1
COMMENTS
Column 4 of A201033
EXAMPLE
Some solutions for n=3
..0..0..2..1....0..0..1..3....0..0..1..2....0..2..1..3....0..1..1..2
..0..2..2..4....1..2..2..3....0..1..4..3....0..2..1..3....0..3..2..4
..1..3..3..4....1..4..4..4....2..3..3..4....1..3..4..4....0..4..3..3
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Nov 26 2011
STATUS
approved