OFFSET
1,1
COMMENTS
Row 4 of A226340.
EXAMPLE
Some solutions for n=3:
-3 -3 -1 -1 -3 -3 -3 -2 -3 -3 2 -3 -2 -3 -1 -2
-3 -1 -1 2 -3 -1 -3 -2 -2 -2 2 -1 -1 -3 0 1
-2 0 0 3 -3 2 2 -1 2 -1 2 3 1 -2 3 3
-1 1 0 3 2 3 2 1 3 0 2 3 1 0 3 3
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jun 04 2013
STATUS
approved