Squaring in For Loops

[o3vUpfjN]

I need to make a for loop without: using the math functions like pow, sqrt, etc. or an if-statement.
I can only use the basic arithmetic functions like +,-,*, and /

The for loop needs to display: 1,2,4,8,16,32,64,128,256,512,1024,2048,4096,8192
as the result

How do I make it so my loop works?

This is what I have and it doesn't work...and I have no clue how to continue...any ideas??

k = 0; //k is an int and I have declared it in the beginning of my code

for( k = 0; k < 13; k++ )
     {
           printf ( "%d, ",k );
           k = k * 2;
     }

     printf("%d", x);

[Peter87]

Squaring means you multiply the number with itself (not with 2).