OFFSET
1,1
COMMENTS
Diagonal of A242549
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..132
EXAMPLE
Some solutions for n=4
..0....0....0....0....0....0....0....0....0....0....0....0....0....0....0....0
..1....0....1....0....1....1....1....1....1....1....1....1....1....1....1....1
..2....1....0....1....0....2....2....2....1....2....2....1....1....0....1....2
..0....2....2....2....2....0....2....1....0....1....0....2....1....2....0....1
..1....2....2....1....0....3....1....0....2....3....2....1....0....1....1....2
..0....1....1....3....3....1....3....2....1....3....3....1....1....0....0....1
..3....2....0....2....0....3....4....3....3....2....2....2....1....0....2....3
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, May 17 2014
STATUS
approved