This is just one of many possible solutions:
number_of_dots = 1
print(number_of_dots)
number_of_dots = 2
print(number_of_dots)
number_of_dots = 4
print(number_of_dots)
number_of_dots = 8
print(number_of_dots)
number_of_dots = 16
print(number_of_dots)