Using for loop with imagewriter

[Georgiana]

Is there any chance to use a for loop and inside this loop to have executed a series of imagewriters? One at each step of the loop, in order to write some frames of a clip? I have already tried:

for (i=0,3,1)
{
imagewriter (clip,"path",start=i,end=i,type="jpg")
}

But it seems that ONLY for the last value of i, the imagewriter is executed. How could I tell the imagewriter to be executed for my specific number of steps, not only for the last one? Thank you for any advice!