OFFSET
1,2
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..37
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....5....5....5....5....5....5....5....5....5....5....5....5....5....5....5
..6....6....6....1....1....6....6....6....1....6....6....6....6....6....6....6
..2....2....1....6....6....1....1....1....6....1....2....1....2....2....1....2
..1....1....3....3....3....3....2....3....2....3....3....2....3....3....2....3
..4....4....4....2....2....2....3....4....3....2....4....4....1....4....3....4
..5....5....2....4....5....4....5....5....4....5....1....5....4....5....4....5
..3....6....5....5....4....5....4....6....5....6....5....6....5....6....5....1
..6....3....6....6....6....6....6....2....6....4....6....3....6....1....6....6
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin May 23 2011
STATUS
approved