%I A020647
%S A020647 1,4,8,12,16,16,20,24,28,32,32,36,40,42,46,48,52,56,58,62,64,64,68,72,
               76,
%T A020647 80,80,84,88,92,96,96,100,104,106,110,112,116,120,122,126,128,128,132,
%U A020647 136,138,142,144,148,152,154,158,160,162,166,168,172,176,178,182,184,188
%N A020647 Least positive integer k for which 8^n divides k!.
%H A020647 T. D. Noe, <a href="b020647.txt">Table of n, a(n) for n=0..1000</a>
%Y A020647 Sequence in context: A133803 A155090 A081747 this_sequence A130702 A053806 
               A068306
%Y A020647 Adjacent sequences: A020644 A020645 A020646 this_sequence A020648 A020649 
               A020650
%K A020647 nonn
%O A020647 0,2
%A A020647 David W. Wilson (davidwwilson(AT)comcast.net)