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Go back or double (Posted on 2016-07-25) Difficulty: 2 of 5

This sequence has simple rules with a major hint in the title.

Part 1) Determine the rule to extend the sequence.

Part 2) Find, with no aids beyond a simple calculator, the 1000th term of this sequence.

No Solution Yet Submitted by Jer    
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re: part 1 | Comment 2 of 5 |
(In reply to part 1 by Charlie)

I couldn't decide whether to give the rule or make it part 1.  I liked the title even though it is rather a giveaway.

When I thought up this sequence a couple weeks ago I wondered if it had any interesting properties.  It is in the OEIS
but the entry by Erich Friedman is rather sparse.

Part 2 is the actual challenge.

  Posted by Jer on 2016-07-25 11:30:11
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