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What is the formula for 1, 2, 4, 8, 16, 32, 64?
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What is the formula for 1, 2, 4, 8, 16, 32, 64?
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This is a geometric sequence since there is a common ratio between each term. In this case, multiplying the previous term in the sequence by 2 gives the next term. In other words, an=a1rn−1 a n = a 1 r n - 1 .
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