A200163 Number of -6..6 arrays x(0..n-1) of n elements with nonzero sum and with zero through n-1 differences all nonzero.

12, 120, 1326, 13888, 145482, 1504820, 15586972, 160772064, 1658521710

Offset: 1

Author

R. H. Hardin Nov 13 2011

Keywords

• nonn

Comments

Column 6 of A200165

Examples

			Some solutions for n=5
.-2....6...-1...-6...-2....2....4....4...-2....3....4....5....3....4....2....2
..5...-3....1...-2...-3...-4...-1...-4...-3...-3...-3....1....4...-6....1....5
.-4....2....4....4...-6...-6...-5....3...-5....1...-4....2...-6....5....4....1
.-2....3...-4...-5....4....6....4...-1...-3...-3...-2...-3...-1....2...-4....2
.-1....1...-1...-2...-5...-2...-6....3....6...-4...-6....6...-5...-6....4....4