How many creases do you get when you fold a piece of paper 4 times, 5 times, 10 times and 20 times?

Question

I would like to know the pattern like this

No of folds................No of creases

1

2

3

4

5

10

20

Answer 1

hmm 4000

Answer 2

Just to let you know it is physically impossible to fold paper more than 8 times, no matter how big the paper is.