25
Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
Find the missing number in this sequence: 0, 1, 4, 9, 16, __

### Response:
25
assistant

The pattern of the sequence appears to be a sequence of squares. 

The sequence can be written as: 
0^2, 1^2, 2^2, 3^2, 4^2, 5^2

So, the missing number in the sequence is 5^2, which is 25. 

Therefore, the complete sequence is: 
0, 1, 4, 9, 16, 25.