OFFSET
1,1
COMMENTS
Column 6 of A201803
EXAMPLE
Some solutions for n=2
.-1.-1..2..2.-1..2...-1..0.-1..2.-2..1...-2.-2.-2..0..0..2....0.-2..1..1..2..2
.-2.-2..2..2.-1.-2....2..0.-1..2.-2..0....2.-1.-1..1..1..2...-2.-2.-2..1..2.-1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Dec 05 2011
STATUS
approved