OFFSET
1,1
COMMENTS
Column 1 of A252500
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
EXAMPLE
Some solutions for n=1
..3..1..0....0..1..3....0..2..2....1..0..0....0..1..3....0..1..2....0..2..0
..0..0..0....3..0..1....0..0..0....2..1..1....0..0..1....0..0..1....3..0..0
..0..1..0....0..1..0....1..0..0....0..1..1....0..0..0....1..3..0....0..1..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 17 2014
STATUS
approved