OFFSET
1,2
COMMENTS
Column 4 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....2....2....2....2....2....2....2....2....2....2....2....2....2
..3....3....3....3....1....0....3....2....3....3....3....3....2....3....3....1
..4....4....4....4....3....3....0....3....4....4....4....4....3....4....1....3
..1....3....1....5....0....3....4....4....1....5....5....5....4....0....4....4
..5....0....5....3....4....4....2....4....3....1....1....4....5....5....0....5
..4....5....6....0....5....5....5....5....5....0....3....2....5....5....5....5
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Apr 21 2012
STATUS
approved