OFFSET
1,1
COMMENTS
Column 7 of A189312
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..58
EXAMPLE
Some solutions for 3X7
..0..1..2..3..4..5.13....0..1..2..3..4..6..5....0..1..2..3..4..6..5
..8.15..9.18.11.12..6....8..7..9.10.11.13.12....8..7..9.10.11.12.13
.14..7.17.16.10.20.19...15.14.16.18.17.20.19...15.14.17.16.18.19.20
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Apr 19 2011
STATUS
approved