OFFSET
1,1
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..121
EXAMPLE
Some solutions for n=3:
-2 0 0 -1 -2 -2 0 -1 -3 -2 0 -3 -1 -3 -3 -1
0 0 2 0 -2 3 0 0 -3 2 3 0 -1 -3 2 -1
1 3 3 0 1 3 1 3 3 3 3 2 1 -3 2 3
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jun 06 2013
STATUS
approved