OFFSET
1,1
EXAMPLE
Some solutions for n=3:
3 4 0 1 0 3 2 3 1 2 1 0 3 5 0 1 0 1 4 5
0 3 1 4 3 4 1 4 4 3 4 1 0 4 1 4 1 0 1 4
3 4 0 1 2 5 4 5 3 4 3 2 3 5 4 5 4 5 4 5
4 3 1 4 0 1 2 1 4 3 0 1 0 4 1 0 3 2 3 2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 02 2014
STATUS
approved