(adsbygoogle = window.adsbygoogle || []).push({}); Can anyone figure out a equation for number 8? It has to be a exponential equation and I haven't been able to figure it out. I figure out the equation for number six which was:
6. y = number of discs
x= number of movies
y= 2^x-1

So here is how it would look:

    [U]Discs[/U]	[U]Moves[/U]

1	1

2	3

3	7

4	15

5	31

6	63

7	127

8	255

9	511

10	1,023

11	2,047

12	4,095

This is the worksheet:
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