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## #1 2006-01-31 12:22:06

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

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## #2 2006-01-31 17:09:19

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?

Black holes are when God divided by zero.

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## #3 2006-01-31 18:30:55

Tigeree
Member
Registered: 2005-11-19
Posts: 13,883

### Re: What's next

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

People don't notice whether it's winter or summer when they're happy.
~ Anton Chekhov
Cheer up, emo kid.

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## #4 2006-02-02 03:58:35

ellmp
Member
Registered: 2006-01-31
Posts: 3

### Re: What's next

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

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## #5 2006-02-02 10:05:12

irspow
Member
Registered: 2005-11-24
Posts: 457

### 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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## #6 2006-02-02 10:06:59

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...

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

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## #7 2006-02-02 15:38:58

ellmp
Member
Registered: 2006-01-31
Posts: 3

### Re: What's next

Thank you guys. It finally makes sense

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## #8 2006-02-03 14:53:51

irspow
Member
Registered: 2005-11-24
Posts: 457

### 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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## #9 2006-02-03 23:15:08

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.

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

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## #10 2012-05-02 13:28:09

anonimnystefy
Real Member
From: Harlan's World
Registered: 2011-05-23
Posts: 16,015

### Re: What's next

Here's another one:

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

Here lies the reader who will never open this book. He is forever dead.
Taking a new step, uttering a new word, is what people fear most. ― Fyodor Dostoyevsky, Crime and Punishment
The knowledge of some things as a function of age is a delta function.

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## #11 2012-05-02 19:15:07

bobbym
From: Bumpkinland
Registered: 2009-04-12
Posts: 104,289

### Re: What's next

Hi;

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
A number by itself is useful, but it is far more useful to know how accurate or certain that number is.

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