Sum of 5 consecutive powers of 3, starting with a power of 9.

A120353

Sum of 5 consecutive powers of 3, starting with a power of 9.

Terms

    a(0) =121a(1) =1089a(2) =9801a(3) =88209a(4) =793881a(5) =7144929a(6) =64304361a(7) =578739249a(8) =5208653241a(9) =46877879169a(10) =421900912521

External references