a(n) = Fibonacci(2*n)^3, n>=0.

Terms

a(0) =0a(1) =1a(2) =27a(3) =512a(4) =9261a(5) =166375a(6) =2985984a(7) =53582633a(8) =961504803a(9) =17253512704a(10) =309601747125