List comprehension Inplace change!

Question

If i have a number and i want to double it on the every index of a list.
Eg: number: 10
Array size will be: 20

Doubled=[number*i for i in range (1,21)]

Above code produce [10,20,30,40....]
But i want it to be [10,20,40,80,160].
How can i achieve this?

Answer 1

Doubled = [number * 2**i for i in range(21)]

Answer 2

CarrieForle (怎麼這麼多學生帳號？) ,

this is perfect !!!

Answer 3

CarrieForle (怎麼這麼多學生帳號？) Thanks.Really appreciates this.
#StaySafe !