Row sums of triangle A120914 (cascadence of (1+2x)^2).
A120918
Row sums of triangle A120914 (cascadence of (1+2x)^2).
Terms
- a(0) =1a(1) =12a(2) =124a(3) =1212a(4) =11512a(5) =107544a(6) =994236a(7) =9128024a(8) =83400856a(9) =759387964a(10) =6896903064a(11) =62519804504a(12) =565914425336
External references
- oeis: A120918