SOLUTION: -1, 1/4, -1/7, 1/10, -1/13,...

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Question 1085307: -1, 1/4, -1/7, 1/10, -1/13,...
Answer by ikleyn(52788) About Me  (Show Source):
You can put this solution on YOUR website!
.
%28%28-1%29%5En%29%2F%283n-2%29,  n= 1, 2, 3, 4, 5 . . .