Answer :

AL2006

It looks like when you want another term, you take the last one and take 1/2 of it.

1/2 of 64 = 32
1/2 of 32 = 16
1/2 of 16 = 8

So if that's the pattern, then the next three terms are ...

1/2 of 8 = 4
1/2of 4 = 2
and
1/2 of 2 = 1



Every number is being divided by 2 so...4, 2, 1

8÷2= 4

4÷2=2

and 2÷2=1