3 5 8 13 22 | What is the next number in the sequence 3 5 8 13 22 ?

Find the next number that fits the pattern:

3, 5, 8, 13, 22, ?

39

Explanation:

5 = 3 * 2 - 1
8 = 5 * 2 - 2
13 = 8 * 2 - 3
22 = 13 * 2 - 4
39 = 22 * 2 - 5

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