What is the equation for this pattern? (x=0, 2, 4, 16, 256, 65536)

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SUMMARY

The equation for the pattern 2, 4, 16, 256, 65536 is established as y = 2^(2^x). This equation accurately reflects the sequence when x starts at 0, yielding the correct outputs for each corresponding value of x. The initial misunderstanding regarding the starting point of x was clarified, emphasizing that x=0 must be used to achieve the desired results. The discussion highlights the importance of correctly identifying the base case in exponential functions.

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Qwerty
I have the following pattern and i need an equation that if x = 1 then y will equal the fist number of it, if x = 2, then y will equal the 2nd number.

The pattern is:
2, 4, 16, 256, 65536

Hint: It keeps squaring itself.

Any ideas?
 
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Try writing all of them as powers of 2:
21,22,24,28,216

It should be easy from there...
 
Try writing all of them as powers of 2
But this doesn't help me much becasue it doesn't find my numbers i need in an equation...
 
f(x) = 2^2x
 
Last edited:
f(x) = 2^2x
I had already thought of this but it does not work...Here is the pattern it gives you.
4,16,64,256
This is the pattern I want...
2, 4, 16, 256, 65536

There is not supposed to be 64 and it also skips 2
 
it turns out to be quite a function with an even nicer derivative
 
I don't think we should be giving explicit formulas anyway, since it sounds like homework.
Acually no, it's not for homework...its for a project I am working on(programming).

And I don't need your help anymore, I found the answer to my question myself.
Answer: 2^(2^x)
 
Originally posted by Qwerty
Acually no, it's not for homework...its for a project I am working on(programming).

And I don't need your help anymore, I found the answer to my question myself.
Answer: 2^(2^x)
Originally posted by Qwerty
I have the following pattern and i need an equation that if x = 1 then y will equal the fist number of it, if x = 2, then y will equal the 2nd number.

The pattern is:
2, 4, 16, 256, 65536

Hint: It keeps squaring itself.

Any ideas?
if you first put x=1 (as you requested) to this equation you get 2^(2^1)=4 which is not the first number 2 ofcourse.
but if you put first x=0 then this is the equation you were looking for this pattern.
 
if you first put x=1 (as you requested) to this equation you get 2^(2^1)=4 which is not the first number 2 ofcourse.
Yes this is an error in my first post, 0 is supposed to be the first number subsituted into the equation.
 

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