25, 36, 49 . . . these are the squared numbers
If the numbers are 64 16 4 1 and 1/4 then the next number is 1/16 because each number is being divided by 4
16
16 is the next squared number.
16
It is: 1
The next number in the sequence is... 64
The next number is 16. Counting forward from the first 1 - every other number is an increment of 1. From the second 1 - every other number is the square of the number it follows. Therefore the next number is 16, then 5, then 25, then 6... and so on...
28?
16...
If you mean: 1, 2, 4, 8 and 16 then the next number is 32
This is the series of square numbers, (16= 4*4). The next number is 5*5=25.
16 is the next number. All you do is sequentially add the next odd number. Therfore after 16 the next number would be 25... the next 36... the next 49... the next 54...