Number of length n+2 0..7 arrays with no three elements in a row with pattern aba or abb (with a!=b) and new values 0..7 introduced in 0..7 order.
A243516
Number of length n+2 0..7 arrays with no three elements in a row with pattern aba or abb (with a!=b) and new values 0..7 introduced in 0..7 order.
Terms
- a(0) =3a(1) =5a(2) =10a(3) =25a(4) =77a(5) =280a(6) =1156a(7) =5267a(8) =25915a(9) =135214a(10) =736706a(11) =4139833a(12) =23767897a(13) =138468212a(14) =814675840a(15) =4824766303a(16) =28699128503a(17) =171207852154
External references
- oeis: A243516