MetaChat - One of my favorite sequence puzzles:

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12 September 2006

One of my favorite sequence puzzles: 1, 3, 7, 12, 18, 26, 35, 45, ... what comes next? Yes, you can find the answer on the web, but that's no fun. Also, yes, I'm aware that sequence puzzles don't have unique solutions.

post by: Wolfdog at: 13:15 | 7 comments

Give me more good ones, too.

posted by Wolfdog 12 September | 13:16

I know what it is, but only because of Godel Escher Bach...

How about this one:

1 4 9 7 7 9 4 1

posted by Specklet 12 September | 13:27

56, but then, suprise!, 69. (No, I didn't check the web, and no, I haven't seen this one before.)

posted by orthogonality 12 September | 13:28

specklet, since it's a palindrome, I'm going with

1 4 9 7 7 9 4 1 4 9 7 7 9 4 1

posted by orthogonality 12 September | 13:30

1 3 6 4 4 6 3 2 5 3 5 6 2 4 ?

posted by orthogonality 12 September | 14:25

Well, I have one way of looking at Specklet's that would say the next number is 9 and then the sequence repeats starting from the first 1 again.

Here's another one of my all time favorites which I recently re-discovered in a whole new context:

1, 1, 2, 1, 2, 2, 3, 1, 2, 2, 3, 2, 3, 3, 4, 1, ... ?

posted by Wolfdog 12 September | 14:29

Wolfdog's got it, ortho.

posted by Specklet 12 September | 14:37

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