What are the Next 2 Numbers in the Sequence: 16, 2, 25, 4, 36, 8, ?, ?

There are 2 alternate series in this sequence.

The first sequence is squares of the numbers 4, 5, 6 and the 2nd series is where the number doubles each time.

So the next numbers would be;

First sequence: 16, 25, 36, 49 (square of the next number 7)

Second sequence: 2, 4, 8, 16 (double of 8)

Answer = 49, 16