OFFSET
1,2
COMMENTS
Column 5 of A194893
EXAMPLE
Some solutions for 4X4
..0........0........0........0........0........0........0........0
..1.2......1.2......1.2......1.2......1.2......1.2......1.2......1.2
..1.3.4....3.4.1....1.3.4....3.2.1....3.3.4....3.2.1....3.0.1....3.3.4
..0.0.4.1..5.5.2.0..2.3.5.2..0.0.1.2..0.1.1.0..3.4.5.0..3.4.4.3..2.1.0.5
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Sep 04 2011
STATUS
approved