OFFSET
1,2
COMMENTS
Row 2 of A188249
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..135
EXAMPLE
Some solutions for n=4
.-2...-3...-1....1....3....1....2...-2....1....3....3....3...-2....2...-4...-3
.-4...-1...-3...-4....2...-1....1...-3...-2...-2....1...-1....2...-3...-3...-1
..1...-3...-3...-4....3....1....2....1....1...-1....1....3....1...-1....3....1
.-4....2....4....3...-4....2...-2...-3....4...-4...-4....2....2...-3...-1...-2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 25 2011
STATUS
approved