OFFSET
1,1
COMMENTS
Column 8 of A186180
LINKS
Ron Hardin, Table of n, a(n) for n = 1..11
EXAMPLE
Some solutions for 4X10
..0..0..0..0..0..0..0..0..0..1....0..0..0..0..0..0..0..0..0..1
..0..0..0..0..0..0..0..0..0..2....0..0..0..0..0..0..0..0..1..1
..0..0..0..0..0..0..0..0..2..1....0..0..0..0..0..0..0..0..2..3
..0..0..0..0..0..0..0..3..5..2....0..0..0..0..0..0..0..0..2..4
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 13 2011
STATUS
approved