OFFSET
1,2
COMMENTS
Column 7 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
..3.0.3....3.4.3....3.4.0....3.4.5....3.4.5....3.4.5....0.3.0....3.4.3
..4.2.5.2..5.1.5.2..0.5.6.3..1.6.0.4..6.7.3.2..2.0.2.1..1.4.2.3..5.6.7.6
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Sep 03 2011
STATUS
approved