A200035 Number of -5..5 arrays x(0..n-1) of n elements with sum zero and with zeroth through n-1st differences all nonzero

0, 10, 52, 444, 3054, 25814, 192280, 1557104, 12157838, 97030120, 768491618

Offset

1,2

Comments

Column 5 of A200038

Links

Table of n, a(n) for n=1..11.

Example

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

Crossrefs

Sequence in context: A281401 A050494 A367460 * A119543 A302302 A216938

Adjacent sequences: A200032 A200033 A200034 * A200036 A200037 A200038

Keyword

nonn

Author

R. H. Hardin Nov 12 2011

Status

approved