OFFSET
1,2
COMMENTS
Column 5 of A211836
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
EXAMPLE
Some solutions for n=3
..0....0....0....0....0....0....0....0....0....0....0....0....0....0....0....0
..1....1....1....1....1....1....1....1....1....1....1....1....1....1....1....1
..2....2....2....0....2....2....0....2....2....2....2....2....2....2....2....2
..1....3....3....2....3....3....2....3....2....3....2....3....3....3....3....3
..3....2....4....3....4....4....3....4....1....2....3....4....4....4....4....4
..4....4....5....0....5....4....4....0....3....4....3....1....2....4....5....5
..0....5....5....4....6....5....5....3....4....5....4....5....5....5....5....4
..5....3....6....5....2....0....6....5....5....6....5....6....2....6....3....6
..6....6....3....6....7....6....5....6....6....1....6....5....6....6....6....7
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Apr 21 2012
STATUS
approved