Number of length-n 0..n arrays with no repeated value equal to the previous repeated value.
A269460
Number of length-n 0..n arrays with no repeated value equal to the previous repeated value.
Terms
- a(0) =2a(1) =9a(2) =60a(3) =580a(4) =7170a(5) =108402a(6) =1934856a(7) =39808584a(8) =927352710a(9) =24123618310a(10) =693066874236
External references
- oeis: A269460