OFFSET
1,2
COMMENTS
Column 6 of A194794
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..12
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
..0.3.0....3.4.5....3.4.5....3.0.4....3.4.0....3.4.5....3.4.1....3.4.5
..1.4.2.4..1.6.3.4..0.2.3.0..4.1.3.0..5.6.2.6..1.6.0.2..5.6.3.6..6.0.1.2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Sep 03 2011
STATUS
approved