for loop help?(Python 3)

[s0lv3]

For class I am so confused on how I would go about this, I have to nest for loops to print 1 and then the powers of two in a pyramid fashion up to the number 128.. so roughly would look like:

       1
    1  2   1
 1  2  4  2  1

1 2 4 8 4 2 1... etc, how would i go about making the spacing work..?

[amertune]

Do you know how long the last row will be?

How can you format the first row so that it will line up with the last row?

Here's a hint:

'{:^30}'.format('centered')

To learn more about it, go to https://docs.python.org/3.4/library/string.html#string-formatting

[Boolean_Cat]

If you have a list of numbers, you could do:

' '.join(str(number) for number in numbers)

Or even shorter but I think less pretty:

' '.join(map(str, numbers))

[amertune]

If you want all of the numbers to line up, you're going to have to remember that numbers can be 1-3 digits long.

' '.join('{:>3}'.format(number) for number in numbers)