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Difficult Sequence (Posted on 2003-10-18) Difficulty: 5 of 5
What is the next number in the sequence? 21,45,66,102,115,171,?

See The Solution Submitted by Freddy Grants    
Rating: 3.6667 (9 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
Question hint? | Comment 13 of 19 |
Freddy, time for a hint, perhaps?
  Posted by pleasance on 2003-10-24 07:28:54
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