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It ain't Fibonacci (Posted on 2005-02-22) Difficulty: 3 of 5
Find the pattern and state the next few numbers.

0 0 1 3 2 6 5 13 12 14 11 27 24 ...

Does this sequence ever revert back to a single digit number? If so, when?

See The Solution Submitted by Erik O.    
Rating: 4.0000 (2 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
Solution (if errors in sequence) | Comment 4 of 10 |

As per the hint, convert to binary.  I added leading zeroes to keep the digits lined up.

00000
00000
00001
00011
00010
00110
00101
01101
01100
01110
01011
11011
11000

Notice the last column alternates 0's and 1's in blocks of 2.
The column before in blocks of 2 and the one before in blocks of 5.  These look Fibonacci, but the next columns appear to go by 7 and then 11.  (And why not start with blocks of 1?)

Either there's an error or I'm back to stumped.

-Jer


  Posted by Jer on 2005-02-28 17:42:44
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