SOLUTION: What is the pattern for -3, 6, -9, 12

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Question 480415: What is the pattern for -3, 6, -9, 12
Answer by cleomenius(959) About Me  (Show Source):
You can put this solution on YOUR website!
The pattern 3n * -1^(n) would work.
n=1; n+1, n+ 2, n + 3.......
Cleomenius.