OFFSET
1,1
EXAMPLE
Some solutions for n=3:
2 -1 -3 -3 -3 -3 -2 -3 0 -2 -3 -2 -3 -2 -3 -1
3 -1 -3 -3 0 -1 -2 0 1 -1 0 -2 -2 -2 -3 -1
3 -1 -3 -2 3 -1 -1 0 3 0 1 -2 -2 -2 -3 -1
3 -1 -2 -2 3 2 -1 0 3 0 2 -2 -2 -1 -3 -1
3 1 1 -2 3 2 1 2 3 0 3 2 -2 2 -1 -1
3 1 3 3 3 3 3 3 3 0 3 2 -1 2 -1 2
CROSSREFS
KEYWORD
nonn,more
AUTHOR
R. H. Hardin, Jun 06 2013
STATUS
approved