Answer
307 is the 6th term
Work Step by Step
$a_{n+1}=3a_{n} - n$, given that $a_{1} = 2$
2nd term = 3(2) - 1 = 5
3rd term = 3(5) - 2 = 13
4th term = 3(13) - 3 = 36
5th term = 3(36) - 4 = 104
6th term = 3(104) - 5 = 307
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