a(n) = coefficient of x^n in the (n+1)-th iteration of (x + x^2 + x^3) for n>=1.
A166883
a(n) = coefficient of x^n in the (n+1)-th iteration of (x + x^2 + x^3) for n>=1.
Terms
- a(0) =1a(1) =3a(2) =16a(3) =120a(4) =1200a(5) =15078a(6) =228984a(7) =4085028a(8) =83795085a(9) =1943920935a(10) =50333780640
External references
- oeis: A166883