OFFSET
1,2
COMMENTS
Column 5 of A231063
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
EXAMPLE
Some solutions for n=4
..0..1..2..3..0....0..3..2..1..0....0..1..2..1..0....0..1..2..3..2
..1..0..3..0..1....1..2..1..2..3....3..0..3..0..3....3..0..1..0..1
..2..1..0..3..2....0..3..2..3..2....2..3..2..1..0....2..3..0..3..2
..3..0..3..2..1....3..0..1..0..1....1..2..3..0..3....1..2..1..0..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 03 2013
STATUS
approved