OFFSET
1,1
COMMENTS
Column 2 of A226398
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..45
EXAMPLE
All solutions for n=3
..1....1...-2...-1....0...-1...-2....0...-2...-1....1...-2
..1....1...-1...-1....1...-1...-2....1...-2....2....2...-1
..1....2....0...-1....2....0....1....1...-1....2....2...-1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Jun 06 2013
STATUS
approved