Row sums of triangle A120919 (cascadence of (1+x)^3).
A120923
Row sums of triangle A120919 (cascadence of (1+x)^3).
Terms
- a(0) =1a(1) =10a(2) =89a(3) =755a(4) =6261a(5) =51276a(6) =416802a(7) =3371901a(8) =27192291a(9) =218814309a(10) =1758106311a(11) =14110481670a(12) =113160495179a(13) =906973579067
External references
- oeis: A120923