OFFSET
1,1
COMMENTS
Column 7 of A186180
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..39
EXAMPLE
Some solutions for 4X9
..0..0..0..0..0..0..0..0..3....0..0..0..0..0..0..0..0..0
..0..0..0..0..0..0..0..1..4....0..0..0..0..0..0..0..0..2
..0..0..0..0..0..0..0..2..3....0..0..0..0..0..0..0..0..5
..0..0..0..0..0..0..3..5..5....0..0..0..0..0..0..0..5..5
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 13 2011
STATUS
approved