OFFSET
1,1
COMMENTS
Column 4 of A237677
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..64
EXAMPLE
Some solutions for n=1
..2..0..1..0..0....2..2..3..3..2....1..1..0..2..2....3..0..2..3..1
..0..0..2..2..3....0..0..0..3..1....1..3..1..0..1....2..3..2..1..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 11 2014
STATUS
approved