Question by Quoc Tran Anh Le - Discuss with MathYouLike

Quoc Tran Anh Le Coordinator

04/08/2018 at 11:29

A sequence begins 1, 2, …, and each term after the second term is the sum of all preceding terms. What is the 15th term of this sequence?

Mathcounts

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Dao Trong Luan Coordinator 05/08/2018 at 02:43

3rd term is: 1 + 2 = 3

4th term is: 1 + 2 + 3 = 6

5th term is: 1 + 2 + 3 + 6 = 12

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15th term is: 1 + 2 + 3 + 6 + 12 + 24 + 48 + 96 + 192 + 384 + 768 = 1536
Quoc Tran Anh Le selected this answer.

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