OFFSET
1,2
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..61
EXAMPLE
Some solutions for n=2
..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....3....3....3....3....3....3....3....3....3....3....3....3
..4....4....4....4....4....4....4....4....4....4....4....4....4....4....4....4
..5....1....5....1....5....5....5....5....5....5....5....5....5....1....5....5
..1....5....1....5....2....1....1....1....1....1....2....2....2....5....2....2
..2....2....2....3....3....2....3....3....3....2....3....1....3....2....1....1
..3....4....3....4....1....4....4....2....4....4....1....3....4....3....4....4
..5....3....4....2....4....5....5....4....2....3....5....4....5....4....5....3
..4....5....5....5....5....3....2....5....5....5....4....5....1....5....3....5
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin May 23 2011
STATUS
approved