OFFSET
1,1
COMMENTS
Column (2,4,n) of A192710
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..120
EXAMPLE
Some solutions for 2X4 <= 2*4^2
.-3.-1..1..3...-3.-1..2..2...-1.-1..0..2...-2.-1..0..3...-2.-2..1..3
.-3..1..1..1...-2.-1..0..3....0..0..0..0...-2..0..0..2...-2..0..0..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Jul 07 2011
STATUS
approved