2000 Fermat Problem 15

In a sequence, every term after the second term is twice the sum of the two preceding terms. The seventh term of the sequence is 8, and the ninth term is 24. What is the eleventh term of the sequence?

\textbf{(A)}\ 160\quad \textbf{(B)}\ 304\quad \textbf{(C)}\ 28\quad \textbf{(D)}\ 56\quad \textbf{(E)}\ 64

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