Question
What number should come next?
5, 13, 41, 85, 257, __
5, 13, 41, 85, 257, __
Answer: Option E
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5*2 + 3, 13*3 + 2, 41*2 + 3, 85*3 + 2, 257*2 + 3, __The next number in the series is 257 * 2 + 3 = 517.
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