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Mathematics 9 Online
OpenStudy (anonymous):

What are the first four terms of the sequence defined by the following equation? an = 3·2n - 1 6 , 12 , 24 , 48 ... 6 , 36 , 216 , 1,296 ... 3 , 6 , 36 , 216 ... 3 , 6 , 12 , 24 ...

OpenStudy (shamim):

If n=1 a1=?

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