OFFSET
1,2
COMMENTS
Diagonal of A229755.
EXAMPLE
Some solutions for n=4:
0 0 1 0 0 0 1 0 0 1 2 2 0 1 2 0 0 1 0 2
2 3 2 3 1 2 3 2 2 3 0 1 2 0 3 1 3 2 3 1
0 1 0 1 3 0 1 0 0 1 2 3 3 1 0 2 1 0 1 2
3 3 2 3 0 2 3 2 3 2 0 1 0 2 3 1 2 2 3 0
CROSSREFS
KEYWORD
nonn,more
AUTHOR
R. H. Hardin, Sep 28 2013
STATUS
approved