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Palindromic sequences (Posted on 2005-10-31) Difficulty: 3 of 5
1,1
1,2,1
1,3,2,3,1
1,4,3,2,3,4,1
1,5,4,3,5,2,5,3,4,5,1
1,6,5,4,3,5,2,5,3,4,5,6,1

What are the next several lines and how are they formed?

Do the sequences have any special feature?

Does the pattern continue indefinitely?

See The Solution Submitted by Bob Smith    
Rating: 3.7143 (7 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
re(2): Spoiler | Comment 14 of 16 |
(In reply to re: Spoiler by pcbouhid)

pcbouhid, I'm not sure why you're trying to argue (and remember that all caps tend to convey an angry tone).

Of course there's infinite possible solutions.  It is in fact "guess what I did."  So?  By convention, we search for the most elegant solution, meaning that we try to find the solution that best fits what we want to find.

Are you trying to defend your solution?  I never said anything about your solution.

  Posted by Tristan on 2005-11-01 19:59:43

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