OFFSET
1,2
COMMENTS
Column 1 of A211888
EXAMPLE
Some solutions for n=4
..0........0........0........0........0........0........0........0
..1.2......1.2......1.2......1.2......1.0......1.2......1.2......1.2
..3.4.1....3.4.5....3.4.5....3.4.5....2.3.4....3.4.5....3.4.5....3.4.5
..5.6.7.8..6.7.8.9..6.7.3.8..2.6.7.8..5.6.7.8..6.7.8.3..6.3.7.8..6.7.8.1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Apr 24 2012
STATUS
approved