OFFSET
1,1
COMMENTS
Column 3 of A263439.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
EXAMPLE
Some solutions for n=3
..1..2..4..0....2..0..2..0....1..2..4..0....2..4..0..1....1..1..1..1
..3..3..1..0....4..3..2..0....0..0..2..3....3..2..0..4....4..0..4..0
..4..0..1..2....2..0..2..0....1..2..4..0....2..4..0..1....1..1..1..1
..1..0..3..3....4..3..2..0....0..0..2..3....3..2..0..4....4..0..4..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Oct 18 2015
STATUS
approved