SOLUTION: I need to find the next number in a sequence but it is really challenging. 1, 11, 21, 1211, 111221 are what I have to work with

Algebra ->  Sequences-and-series -> SOLUTION: I need to find the next number in a sequence but it is really challenging. 1, 11, 21, 1211, 111221 are what I have to work with      Log On


   



Question 1068403: I need to find the next number in a sequence but it is really challenging.
1, 11, 21, 1211, 111221 are what I have to work with

Found 2 solutions by rothauserc, ikleyn:
Answer by rothauserc(4718) About Me  (Show Source):
You can put this solution on YOUR website!
1, 11, 21, 1211, 111221
:
This is the "say what you see" sequence
:
The seed is 1 and all terms end in 1
:
you get 11 from 1 by saying one 1, i.e. 11
:
you get 21 from 11 by saying two 1's, i.e. 21
:
*********************************
therefore the next term is 312211
*********************************
:

Answer by ikleyn(52788) About Me  (Show Source):
You can put this solution on YOUR website!
.
And any relation to math . . .