OFFSET
1,2
COMMENTS
Column 4 of A263905.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
EXAMPLE
Some solutions for n=7
..1....1....0....4....1....1....0....2....4....1....0....2....1....0....0....0
..0....0....3....1....5....0....2....1....0....2....3....0....0....1....1....4
..3....5....2....0....0....4....1....5....1....3....5....1....4....5....5....5
..4....2....4....3....4....3....5....0....3....4....2....4....5....6....4....3
..5....6....1....5....3....6....3....4....2....0....1....6....3....4....2....2
..2....4....6....2....2....2....6....3....6....6....4....3....6....2....6....1
..6....3....5....6....6....5....4....6....5....5....6....5....2....3....3....6
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Oct 29 2015
STATUS
approved