OFFSET
1,1
COMMENTS
Diagonal of A185477
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..26
EXAMPLE
Some solutions for 4X4
..0..0..0..2....0..0..0..0....0..0..2..2....0..0..0..2....0..0..1..1
..0..0..1..2....1..1..1..2....0..0..2..2....0..1..2..2....0..1..1..1
..0..1..1..2....1..1..2..0....0..0..2..2....0..2..1..1....0..1..1..2
..1..2..2..0....1..1..2..1....1..1..1..2....0..2..1..1....2..2..2..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 28 2011
STATUS
approved