OFFSET
1,1
COMMENTS
Diagonal of A234122
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..13
EXAMPLE
Some solutions for n=2
..2..1..2....2..1..1....1..2..1....1..1..1....2..1..2....1..1..1....1..0..1
..2..1..2....1..2..1....2..1..2....0..1..0....1..2..2....1..0..1....0..0..1
..2..2..1....1..2..1....2..1..2....0..0..0....2..2..1....0..0..1....1..0..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 19 2013
STATUS
approved