OFFSET
1,1
COMMENTS
Column 4 of A226422
EXAMPLE
Some solutions for n=3
.-3...-3...-4...-1...-3...-3...-4...-2...-1...-2...-4...-3...-4...-3...-1...-3
.-1...-3...-1....1...-2....2...-4...-1....0...-1....1...-3...-1...-2...-1...-3
..1....2....4....2....1....2...-3....0....1....4....1....1....3....2....1....3
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Jun 06 2013
STATUS
approved