Question 1167016
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n    term

1     2
2     -2*2 = -4
3     -2*-4 = 8 = -2*-2*2
4     -2*8 = -16 = (-2)^3 * 2
5     -2*-16 = 32 = (-2)^4 * 2
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Do you see the pattern for the n'th term?