OFFSET
1,2
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..15
EXAMPLE
Some solutions for n=3:
..0..3..1....0..4..2....0..2..1....0..1..5....0..1..2....0..3..1....0..1..5
..0..3..0....2..5..1....1..2..4....5..4..5....3..1..2....1..0..3....0..4..3
..1..2..4....3..5..1....0..2..0....2..1..5....3..5..4....1..5..4....3..0..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 19 2013
STATUS
approved