Number of length n+2 0..8 arrays with no three elements in a row with pattern aba (with a!=b) and new values 0..8 introduced in 0..8 order.
A243605
Number of length n+2 0..8 arrays with no three elements in a row with pattern aba (with a!=b) and new values 0..8 introduced in 0..8 order.
Terms
- a(0) =4a(1) =10a(2) =29a(3) =97a(4) =366a(5) =1534a(6) =7050a(7) =35166a(8) =188788a(9) =1082913a(10) =6592698a(11) =42315731a(12) =284431573a(13) =1988554321a(14) =14365186163a(15) =106571030511a(16) =807548257486
External references
- oeis: A243605