Number of length n+2 0..n arrays with no three equal elements in a row and new values 0..n introduced in 0..n order.
A242467
Number of length n+2 0..n arrays with no three equal elements in a row and new values 0..n introduced in 0..n order.
Terms
- a(0) =3a(1) =11a(2) =40a(3) =158a(4) =684a(5) =3232a(6) =16533a(7) =90862a(8) =533013a(9) =3319374a(10) =21844874a(11) =151329961a(12) =1099822975a(13) =8361244270a(14) =66320787389a(15) =547602710173
External references
- oeis: A242467