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%I #6 Mar 30 2012 18:39:17
%S 1,1,2,1,1,2,8,1,1,2,1,1,2,8,32,1,1,2,1,1,2,8,1,1,2,1,1,2,8,32,128,1,
%T 1,2,1,1,2,8,1,1,2,1,1,2,8,32,1,1,2,1,1,2,8,1,1,2,1,1,2,8,32,512,1,1,
%U 2,1,1,2,8,1,1,2,1,1,2,8,32,1,1,2,1,1,2,8,1,1,2,1,1,2,8,32,128,1,1,2,1,1,2
%N Let S(0) = {1} and for k >= 1, let S(k) = {S(k-1), S(k-1), 2T}, where T = sum of terms in S(k-1). Sequence is S(infinity).
%F For k>=2, a(2^k-1)=2*4^(k-2).
%Y Cf. A082388.
%K nonn
%O 0,3
%A _Benoit Cloitre_, Apr 14 2003
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