Solution to ((2^n)+1)/(n^2)

  • #1
Find all positive integer answers for ((2^n)+1)/(n^2) where n is an integer greater then one.
The only answer i can find is three, i wrote a program to brute force it and have gotten up to n=32000 but as for going about solving it i have no clue.
 

Answers and Replies

  • #2
615
35
Where did this question orginate?
 
  • #3
A friend from school broght it in... I have no clue where he got it from though.
 
  • #4
615
35
A friend from school broght it in... I have no clue where he got it from though.

Is it homework?
 
  • #5
No, its just a problem we where trying to solve.
 

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