OFFSET
1,2
COMMENTS
Diagonal of A188211
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..24
EXAMPLE
All solutions for n=3
.-2....0...-2...-3...-1...-3...-4...-2...-4...-4...-3...-2...-1
..0....0...-2...-1....0....0....0....1....1....2....1...-1...-1
..2....0....4....4....1....3....4....1....3....2....2....3....2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 24 2011
STATUS
approved