OFFSET
1,1
COMMENTS
Row 4 of A226398.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..45
EXAMPLE
Some solutions for n=3:
-2 -2 -3 -1 -3 -2 -3 0 -2 -2 -2 -3 -3 -1 -3 2
1 -2 -1 -1 -3 -2 -3 1 -2 0 0 -2 -3 0 -3 2
2 3 0 -1 -2 -2 0 1 -1 1 3 -2 -2 2 -1 3
3 3 0 -1 -2 3 1 1 3 3 3 2 -1 3 3 3
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jun 06 2013
STATUS
approved