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Question Number 49427 by Tawa1 last updated on 06/Dec/18

$$\mathrm{Find}\mathrm{the}\mathrm{nth}\mathrm{term}\mathrm{of}\mathrm{the}\mathrm{sequence}:5,5,35,65,275,...$$

Commented by Tawa1 last updated on 07/Dec/18

$$\mathrm{Answer}:3^{\mathbf{n}}-{(-2)}^{\mathbf{n}}.\mathrm{How}???$$

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