A200162 Number of -5..5 arrays x(0..n-1) of n elements with nonzero sum and with zero through n-1 differences all nonzero

10, 80, 726, 6160, 52486, 438968, 3687480, 30776992, 257108784, 2144437176

Offset

1,1

Comments

Column 5 of A200165

Links

Table of n, a(n) for n=1..10.

Example

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

Crossrefs

Sequence in context: A037509 A037692 A126531 * A165511 A165750 A297869

Adjacent sequences: A200159 A200160 A200161 * A200163 A200164 A200165

Keyword

nonn

Author

R. H. Hardin Nov 13 2011

Status

approved