OFFSET
1,2
COMMENTS
Column 6 of A195278
EXAMPLE
Some solutions for n=5
...0...............0...............0...............0...............0
..-6.-1...........-1..3...........-3.-8............3..9...........-2.-7
.-10.-6.-8........-6.-1..3.........1.-5.-8........-1..5..5.........1.-1.-7
.-15-10.-6.-9.....-9.-4.-2.-2......2..1.-2..2......3..7..4..2......1..0.-1..2
.-17-14-12.-9.-8.-10.-8.-4.-2..3...2..4.-1.-4.-6...1..6..4..5..0...5.-1.-7.-2..4
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Sep 14 2011
STATUS
approved