Thread: Is this a puzzle? View Single Post
 2020-08-04, 14:19 #6 kruoli     "Oliver" Sep 2017 Porta Westfalica, DE 32×73 Posts Do you mean my third bullet point? In that case the sum really should still go from $$x$$ to $$\lceil log2(n) \rceil$$. But maybe I'm missing something here.