OFFSET
1,1
COMMENTS
Column 8 of A189312
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..14
EXAMPLE
Some solutions for 3X8
..0..1..2..3..4..5..6..7....0..1..2..3..4..5..6..7....0..1..2..3..4..5..6..7
..8..9.10.11.13.12.15.14...17..9.19.11.20.12.13.23...17..9.10.20.12.13.23.14
.16.17.19.18.20.21.22.23...16..8.18.10.21.22.14.15...16..8.18.11.19.21.22.15
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Apr 19 2011
STATUS
approved