Sequence: 1,7,49,343,??,16807, 7th term, 8th....

we notice that:

1st term = 1 or 7^0

2nd term = 7 or 7^1

3rd term =49 or 7^2

4th term = 343 or 7^3

5th term = ?? or 7^4 (=2401)

6th term = 16807 or 7^5

7th term = 117 647 or 7^6

nth term = (7)^(n-1)

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