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Et Tu, Brute? (Posted on 2005-08-02) Difficulty: 2 of 5
What follows in this sequence?

1, 2, 3, 3, 2, 3, 4, 5, 3, 2, 3, 4, 5, 5, 4, 5, 6, 7, 5, 4, 5, ...

See The Solution Submitted by Erik O.    
Rating: 3.5000 (4 votes)

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Patterns.. | Comment 3 of 18 |

Well.. my answer matches Nosher’s. From looking at the numbers being subtracted/added (I know, I know, really simple stuff), I found a pattern. It goes..<o:p></o:p>

+1, +1, 0, -1, +1, +1, +1, -2, -1, +1, +1, +1, 0, -1, +1, +1, +1, -2, -1, +1<o:p></o:p>

 <o:p></o:p>

Now break that up..<o:p></o:p>

+1, +1<o:p></o:p>

0, -1, +1, +1, +1, -2, -1, +1, +1, +1<o:p></o:p>

0, -1, +1, +1, +1, -2, -1, +1<o:p></o:p>

 <o:p></o:p>

And you can see how it’s supposed to continue.. it just repeats itself. Soo.. yeah. The next numbers are..<o:p></o:p>

6, 7, 7, 6, 7, 8, 9, 7, 6, 7, 8, 9, 9, 8, 9, 10, 11, 9, 8, 9<o:p></o:p>

10, 11, 11, 10, 11, 12, 13, 11, 10, 11, 12, 13, 13, 12, 13, 14, 15, 13, 12, 13<o:p></o:p>

 <o:p></o:p>

(The bolded parts go along with brianjn’s sequences)
  Posted by efflixi on 2005-08-04 04:27:44
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