Which doge represents what number?

Solution 1:

The doges are as follows:

2

4

8

16

32

64

128

256

512

1024

2048

Solution 2:

In Firefox and Internet Explorer you can press Ctrl + A (Select All) to see the values:

Much Appreciated

You can even keep playing like this, but why would you?
In Chrome that didn't work for me - the numbers still invisible.

Solution 3:

If you make it to 4096, the game reuses the 1024 tile. Note that this is a 1024 tile in aesthetics only, and cannot be combined with true 1024 tiles.