Number of -6..6 arrays x(0..n-1) of n elements with zeroth through n-1st differences all nonzero.
A199941
Number of -6..6 arrays x(0..n-1) of n elements with zeroth through n-1st differences all nonzero.
Terms
- a(0) =12a(1) =132a(2) =1404a(3) =14696a(4) =152586a(5) =1577040a(6) =16261206a(7) =167447004a(8) =1723164176a(9) =17727091612
External references
- oeis: A199941