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%I #5 Mar 30 2012 17:22:57
%S 2,4,16,16,128,256,256,2048,8192,32768,16384,262144,262144,2097152,
%T 8388608,16777216,33554432,134217728,536870912,1073741824,4294967296,
%U 2147483648,34359738368,137438953472,274877906944,274877906944,2199023255552,4398046511104,1099511627776,35184372088832
%N Denominator of the frequency of the n-th dropping time in the Collatz iteration.
%C The numerators are in A186107.
%H <a href="/index/3#3x1">Index entries for sequences related to 3x+1 (or Collatz) problem</a>
%F a(n) = denominator of A186009(n) / 2^A020914(n-1).
%Y Cf. A126241 (dropping times)
%K nonn,frac
%O 1,1
%A _T. D. Noe_, Feb 12 2011
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