Javescript create list of numbers 0 to n

Sorry, I dont know anything about programming, so bare with me.
I need an expression for a textlayer in adobe after effects which uses javascript. The expression needs to create a customizable list of numbers using 3 variables –
example:

x = 0 //starting point (the first number in the list)
y= 20 //increments (the size of the steps)
z= 5 //the number of steps

the output needs to be a list with each entry in a new line, in this case:

0
20
40
60
80

Hope somebody can help. Thanks