OFFSET
1,1
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
EXAMPLE
Some solutions for n=3:
4 0 4 0 4 5 4 5 2 3 5 3 2 1 2 3 5 3 4 5
6 5 6 5 2 0 2 0 6 4 3 4 4 6 4 2 3 4 2 0
1 3 1 3 0 1 0 1 5 0 2 0 3 2 3 4 5 3 4 5
5 4 5 4 2 0 2 0 3 1 6 1 2 4 2 6 3 4 2 0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 03 2014
STATUS
approved