Coefficient of x^n in the expansion of ( (1-x)^2 / (1-x-x^2)^3 )^n.
A370622
Coefficient of x^n in the expansion of ( (1-x)^2 / (1-x-x^2)^3 )^n.
Terms
- a(0) =1a(1) =1a(2) =9a(3) =46a(4) =293a(5) =1806a(6) =11538a(7) =74173a(8) =482157a(9) =3154645a(10) =20762014a(11) =137270376a(12) =911111522a(13) =6067104434a(14) =40514133081a(15) =271195540971
External references
- oeis: A370622