Number of length-n 0..n arrays with no adjacent pair x,x+1 repeated.
A269649
Number of length-n 0..n arrays with no adjacent pair x,x+1 repeated.
Terms
- a(0) =2a(1) =9a(2) =64a(3) =621a(4) =7686a(5) =115902a(6) =2061940a(7) =42277329a(8) =981592964a(9) =25455321375a(10) =729233710320
External references
- oeis: A269649