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Close neighbors (Posted on 2011-07-13) Difficulty: 3 of 5
Find all possible triplets a,b,c that appear as adjacent coefficents in the same row of Pascal triangle and form an arithmetic sequence.

No Solution Yet Submitted by Ady TZIDON    
Rating: 5.0000 (1 votes)

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re: Solution Comment 4 of 4 |
(In reply to Solution by Harry)

I did have in mind that Ady might be asking for some kind of proof but your analysis does that.
  Posted by brianjn on 2011-07-15 01:43:50

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