OFFSET
1,2
COMMENTS
Column 2 of A222654
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
EXAMPLE
Some solutions for n=3
..0..1....0..1....0..0....0..0....0..0....0..1....0..1....0..1....0..1....0..1
..2..2....2..2....0..1....1..0....1..2....0..0....2..0....2..3....0..2....2..1
..0..1....1..2....2..3....2..3....0..3....2..3....3..0....1..0....3..0....3..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 27 2013
STATUS
approved