Question

Question #ef41d

Answer 1

It can be `(128)^2`

Explanation:

The sequence is multiply the first number by 2 and them do its square.
`1*2 = 2`
`2^2 = 4`
`4*2 = 8`
`8^2 = 64`
`64*2 = 128`
So, the last is `128^2`