OFFSET
1,1
EXAMPLE
Some solutions for n=1:
0 4 2 2 3 1 0 4 6 3 3 6 4 0 4 4 3 3 0 4 2 6 6 6
4 7 4 3 5 2 0 5 6 4 3 7 4 1 6 5 3 2 0 5 2 7 6 7
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 26 2013
STATUS
approved