OFFSET
1,1
COMMENTS
Column 5 of A207015
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
EXAMPLE
Some solutions for n=4
..2..1..0..2..2....0..0..2..1..0....1..2..2..1..0....0..0..2..0..0
..0..0..2..1..0....0..1..2..0..2....0..1..1..2..2....2..2..2..1..1
..1..2..0..0..0....2..1..0..2..0....2..0..1..2..0....0..2..2..1..1
..2..2..2..0..2....1..2..2..2..1....1..2..2..0..2....0..1..2..0..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 14 2012
STATUS
approved