Hmmm I see that I have made an old mistake of mine ;) 2x2x2x2 is not 8, it's deceptive... it looks like 4x2 = 8 but nope ! :)
This is 2x2=4x2=8x2=16. and then the next 4 = 16x2 = 32x2 = 64x2 = 128 x 2=256 so it's roughly 24^4 x 256 = 84934656 -- https://mail.python.org/mailman/listinfo/python-list