[ASK] (Seemingly) Random Sequences

[Monox D. I-Fly]

Given a sequence 32, 16, 4, 18, 9, 3, .... The next numbers are ....

A. 17, 8, 5

​B. 17, 6

C. 17, 4

D. 16, 4

E. 14, 8


My train of thought was to group the sequence into three numbers, so we get (32, 16, 4) and (18, 9, 3).

32 is two times of 16 which is square of 4.

​18 is two times of 9 which is square of 3.

Following this logic, the third number of the third group should be 2, then the second number of the third group should be 4, and the first number of the third group should be 8. Thus, the next numbers should be 8, 4. However, it's not available in the options. Do you guys have any other idea how the pattern is supposed to be?