25, 36, 49, 64 are the next numbers.
256
. 16
1/2 then 1/4 1/8 1/16 1/32
If you mean: 1 4 9 16 25 then it is 36
It is: 6 squared = 36
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...
25, 36, 49, 64, 81, 100...
11, 16, 22, 29, 37, 46...
the next answer would be 1,024
16
15
16.