OFFSET
1,1
COMMENTS
Column 6 of A189650.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..200
EXAMPLE
Some solutions for 3 X 6
..0..2..7..4..3..5....0..2..7..4..3..5....0..6..7..3.11..5....0..8..2..3..4..5
..1.14.13.10.15.11....1.12..8..9.10.11....1..2.13..4..9.16....1.12.15.14..9.11
.12..6..9..8.17.16...13..6.14.16.15.17...12.14.15..8.17.10....7..6.13.10.17.16
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Apr 24 2011
STATUS
approved