Otherwise, the method of a big barbarian (push yourself, I'm coming with my big hooves).
You do your first piercing, then a repetition of this piercing where you ask him to repeat 500 times. As a result, you have a piercing every time you enlarge your room.
On the other hand, I don't certify that when you put your plan he knows how to make the right calculation of the number of holes.
In short, faster but much less clean than the version of @Opiep27