Math Is Fun Forum

ellmp

Member

Registered: 2006-01-31

Posts: 3

What's next

Can you complete this series of numbers?  You'll know when that happens if you solve the problem correctly

1
       
11   
       
21   
       
1112       
   
3112       
   
211213   
       
312213

Andrea

Member

Registered: 2006-01-31

Posts: 11

Re: What's next

Uhmm... I think I've heard this one before. I don't remember if this is right, but it has something to do with speaking it out loud.
I'm going to guess..

212223?

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Black holes are when God divided by zero.

Tigeree

Member

Registered: 2005-11-19

Posts: 13,883

Re: What's next

no.....um.......er............ohhh 412224 it's wrong       *crying*

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~ Anton Chekhov
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ellmp

Member

Registered: 2006-01-31

Posts: 3

Re: What's next

Cmon guys I need some help here. What is the pattern?

irspow

Member

Registered: 2005-11-24

Posts: 1,055

Re: What's next

http://www.nerur.com/puzzles/

Whooops!  That site doesn't have the answer either, but they pose the same problem.

Last edited by irspow (2006-02-02 10:06:33)

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I am at an age where I have forgotten more than I remember, but I still pretend to know it all.

mathsyperson

Moderator

Registered: 2005-06-22

Posts: 4,900

Re: What's next

I agree with Andrea.

The first number in the sequence has one 1. That's 11.
The next has two 1's. That's 21.
Next, we have one 1 and one 2. 1112.
Time time we have three 1's and one 2. 3112.

And so on...

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Why did the vector cross the road?
It wanted to be normal.

ellmp

Member

Registered: 2006-01-31

Posts: 3

Re: What's next

Thank you guys. It finally makes sense

irspow

Member

Registered: 2005-11-24

Posts: 1,055

Re: What's next

So the series ends with 21322314?  You guys are good!  I would have never have seen that relationship.  A math problem that does not use math...hmm.

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I am at an age where I have forgotten more than I remember, but I still pretend to know it all.

mathsyperson

Moderator

Registered: 2005-06-22

Posts: 4,900

Re: What's next

That's what I get. From where ellmp left off, you just need 5 more iterations and then it starts repeating itself.

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Why did the vector cross the road?
It wanted to be normal.

anonimnystefy

Real Member

From: Harlan's World

Registered: 2011-05-23

Posts: 16,049

Re: What's next

Here's another one:

2,3,10,12,13,20,21,?

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“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment
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bobbym

bumpkin

From: Bumpkinland

Registered: 2009-04-12

Posts: 109,606

Re: What's next

Hi;

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In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.