In a sequence, the first term is 2, and each term thereafter is double the previous term plus 1. What is the 5th term?
Category: Math · Difficulty: expert
Hint: Calculate each term step by step.
Answer
63
Explanation
The sequence is: 2, 5, 11, 23, 47. The 5th term is 2 * 47 + 1 = 63.
This is a expert math riddle — one of the harder riddles here. The answer is 63.
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