OFFSET
1,2
COMMENTS
Column 4 of A194893
EXAMPLE
Some solutions for 4X4
..0........0........0........0........0........0........0........0
..1.2......0.1......1.2......1.1......0.1......1.2......0.1......1.1
..3.0.1....2.3.4....1.3.0....2.3.4....2.1.3....1.2.3....2.1.0....2.3.3
..4.0.3.2..2.0.1.1..0.4.2.1..2.0.1.1..2.0.4.4..4.0.1.4..2.3.0.1..2.0.4.2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Sep 04 2011
STATUS
approved