OFFSET
1,2
COMMENTS
Column 7 of A263597.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
EXAMPLE
Some solutions for n=6
..3....1....2....0....1....1....0....0....5....5....1....3....5....0....1....5
..0....0....1....5....2....0....1....1....1....0....0....0....1....1....0....0
..2....3....0....1....3....3....2....3....2....1....4....1....0....3....3....1
..4....4....5....3....4....5....4....5....4....3....2....4....3....2....4....4
..1....2....4....4....5....4....3....2....0....4....3....5....4....5....5....2
..5....5....3....2....0....2....5....4....3....2....5....2....2....4....2....3
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Oct 22 2015
STATUS
approved