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The Magic Cafe Forum Index » » Puzzle me this... » » Has anyone seen this? (0 Likes) Printer Friendly Version

James F
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Inner circle
Atlanta
1097 Posts

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I don't remember where I saw this and I don't know if it is supposed to be a puzzle or not. When I was shown it I think it was presented as a "find the pattern" but Im not sure. Here it is:

1
11
21
1211
111221
312211
13112221
1113213211
31131211131221
13211311123113112211
11131221133112132113212221

As you can see, it starts growing quickly. I know it has no relations to Pascal's Triangle, but it always reminds me of it. Ive wondered if this could have ANY ties to usefull mathematics.

James
JackTrumper
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Each line is describing the line above.
1
There is one 1. (11)
There is two 1's. (21)
There is one two and one one. (1211)
etc
etc

:)
Do coffins have lifetime guarantees..?
Stephen Buxton
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I'm not sure if it is true for all starting values, however, I have found that there is a point when it cycles - either by repeating the same line over and over again, or by repeating a the last few lines over and over.

BTW - there is a mistake in the 5th line: Shouldn't the description of 1211 be 1231, not 111221?
If you put an infinite number of apes in front of an infinite number of computers, you get a pretty good idea of what internet chat rooms can be like
Jonathan Townsend
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Eternal Order
Ossining, NY
27017 Posts

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Quote:
On 2005-06-28 14:41, Stephen Buxton wrote:
...Shouldn't the description of 1211 be 1231, not 111221?


one 1, one 2 two 1s ?
...to all the coins I've dropped here
James F
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Atlanta
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Jack got it right.

Stephen:

1211 is correctly described with 111221. I see what youre saying but the pattern is not to describe the total amount of numbers. (As you did by saying three ones) you go in order from left to right. Jonathan put it into words correctly.

By the way, at what point did it start repeating? I was playing around with it to see if it can reach higher than the number 3 but you never have 4 of any number.

James
James
JackTrumper
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Is their a line that describes itself?
Do coffins have lifetime guarantees..?
Jonathan Townsend
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Eternal Order
Ossining, NY
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I believe Kurt Goodel showed that there can be such a line thanks to a trick of Quinn's.
...to all the coins I've dropped here
Stephen Buxton
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If you follow the method of counting that I used, rather than the method you described, it will start repeating after about twenty or so lines (I'm going from memory here, btw)
If you put an infinite number of apes in front of an infinite number of computers, you get a pretty good idea of what internet chat rooms can be like
Jonathan Townsend
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Eternal Order
Ossining, NY
27017 Posts

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Quote:
On 2005-06-29 01:45, Stephen Buxton wrote:
If you follow the method of counting that I used, rather than the method you described, it will start repeating after about twenty or so lines (I'm going from memory here, btw)


Yeah, got you. combinations versus permutations?
...to all the coins I've dropped here
James F
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Atlanta
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Ah I see. Ill have to play with describing each line the way you did. I wonder if it will repeat using the method I posted... Interesting...

James
mxmln
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This is a logic sequence. What you see is what you got reading from left to right. There are no mathematical functions involved. This actually appeared in an ACT test about 15 or 20 years ago. It is an absolutely great puzzle because virtually everyone will assume there is some type of mathematical function involved. Have fun with it!!!!!!!
Jonathan Townsend
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Ossining, NY
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Quote:
On 2005-06-29 11:35, mxmln wrote:... It is an absolutely great puzzle because virtually everyone will assume there is some type of mathematical function involved.


Good puzzles/questions discriminate. Much depends on the traits you wish to select for. One of my favorite is to ask someone what form of government we have here in the USA. The correct answer is of course "republic". If one wishes to be mean about it, one can ask the victim to recite our pledge of allegiance, and after they finish, ask them the question again. You see, sometimes you want to find people who are clever working in the box you want them inside, and sometimes you want people who can build workable boxes for ventures. Sometimes you want folks who can maintain a box and sometimes you want folks to teach others to maintain a box. Good questions/puzzles can help you find the right person for the task at hand.
...to all the coins I've dropped here
Stephen Buxton
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It's a bit late at night, so if this is wrong, please forgive me...

1
11
21
1211
1231
131221
132221
133221
232221
134211
14131231
14231241
24132231
14233221
14233221
etc etc
If you put an infinite number of apes in front of an infinite number of computers, you get a pretty good idea of what internet chat rooms can be like
James F
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Atlanta
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On line 7 shouldnt it be: 132231? Also, In what order do you desribe the numbers? Is it always largest number to smallest?

James
RiffClown
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Yorktown, Virginia (Previously Germany)
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Looks Familiar. To see how far it goes quickly try

http://themagiccafe.com/forums/viewtopic......orum=101
Rob "Riff, the Magical Clown" Eubank aka RiffClown
<BR>http://www.riffclown.com
<BR>Magic is not the method, but the presentation.
mxmln
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The "greatness" in a puzzle is the ability to force someone to think OUTSIDE the box. If the puzzle fits within an individuals comfort zone in terms of their mental prowess (notice I am not using the word intelligence) then it really doesn't intrigue the individual because it doesn't tax their mind. Making someone think differently about something expands their mind. Giving someone information fills their mind. When you think outside the box you are opening your mind to different views, concepts, possibilities, etc. Then you will willingly want to fill it with information about these new ideas. A good logic puzzle can make you think outside the box but still keep you grounded to reality. It will help you realize just how unfocused one can become due to assumption. Assume nothing, just what exactly is the puzzle asking you to do. Don't go down any tangents that really aren't there. Think clearly and logically before embarking on a solution.
Stephen Buxton
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As I said, it was late, and I was tired... trying again

1
11
21
1211
1231
131221
132231
232221
134211
14131231
14231241
24132231
14233221
14233221

Well, it gravitates to the same number - I guess that must be one of them there mathematical black holes that you hear talk about
If you put an infinite number of apes in front of an infinite number of computers, you get a pretty good idea of what internet chat rooms can be like
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