A199940 Number of -5..5 arrays x(0..n-1) of n elements with zeroth through n-1st differences all nonzero

10, 90, 778, 6604, 55540, 464782, 3879760, 32334096, 269266622, 2241467296, 18655194942

Offset

1,1

Comments

Column 5 of A199943

Links

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

Example

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

Crossrefs

Sequence in context: A291392 A162756 A331323 * A004985 A276020 A164552

Adjacent sequences: A199937 A199938 A199939 * A199941 A199942 A199943

Keyword

nonn

Author

R. H. Hardin Nov 12 2011

Status

approved