Number of length n+3 0..6 arrays with no four elements in a row with pattern abba (with a!=b) and new values 0..6 introduced in 0..6 order.
A243387
Number of length n+3 0..6 arrays with no four elements in a row with pattern abba (with a!=b) and new values 0..6 introduced in 0..6 order.
Terms
- a(0) =14a(1) =46a(2) =174a(3) =737a(4) =3434a(5) =17366a(6) =94164a(7) =541060a(8) =3257286a(9) =20333069a(10) =130439432a(11) =853756157a(12) =5669606647a(13) =38041540586a(14) =257118895765
External references
- oeis: A243387