Number of -5..5 arrays x(0..n-1) of n elements with zeroth through n-1st differences all nonzero.
A199940
Number of -5..5 arrays x(0..n-1) of n elements with zeroth through n-1st differences all nonzero.
Terms
- a(0) =10a(1) =90a(2) =778a(3) =6604a(4) =55540a(5) =464782a(6) =3879760a(7) =32334096a(8) =269266622a(9) =2241467296a(10) =18655194942
External references
- oeis: A199940