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All rational numbers in (Posted on 2016-08-26) Difficulty: 3 of 5
The infinite sequence is defined as follows:
a1=1
for n ≥ 1, a2n= an+1
a2n+1=1/ a2n

Prove that every positive rational number occurs in the sequence exactly once.

No Solution Yet Submitted by Ady TZIDON    
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re(3): From N/D to n @ jer & Charlie | Comment 9 of 10 |
(In reply to re(2): From N/D to n @ jer & Charlie by Jer)

I confirm that Jer had made no edit at the time of Ady's accusation.  I looked at Jer's entry a few hours ago (before making my own), and it was unedited at that time.
  Posted by Steve Herman on 2016-08-29 09:36:19

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