Best Answer

x 2 + 2 - 1 is the repeating sequence

1 x 2 = 2

2 + 2 = 4

4 - 1 = 3

3 x 2 = 6

6 + 2 = 8

8 - 1 = 7

7 x 2 = 14

14 + 2 = 16

16 - 1 = 15

the next number is 15

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Q: What number completes sequence 1 2 4 3 6 8 7 14 16?

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