%I #5 Mar 30 2012 18:39:21
%S 0,3,5,8,10,11,12,21,24,27,33,35,36,37,39,43,49,51,64,71,75,76,78,80,
%T 82,86,92,98,102,104,120,121,122,128,132,133,134,139,140,145,147,150,
%U 152,155,156,157,158,163,168,170,171,173,175,177,185,187,193,196,202,204
%N Indices n such that S^n(1) is an integer where S(x) = 4/3*ceiling(x).
%F Conjecture : a(n)=3n+O(sqrt(n))
%K nonn
%O 0,2
%A _Benoit Cloitre_, Oct 07 2003
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