OFFSET
1,1
COMMENTS
Column 4 of A236451.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
EXAMPLE
Some solutions for n=1
..0..2..2..3..0....2..0..3..3..0....0..0..1..1..0....1..3..3..2..2
..2..2..2..3..0....0..2..1..3..2....0..0..2..2..2....2..3..2..0..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 26 2014
STATUS
approved