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%I #2 Mar 30 2012 18:51:00
%S 3,5,6,8,10,11,16,17,20,23,25,32,41
%N Numbers having exactly one partition into initial terms of a Collatz trajectory starting with a value less than n.
%C A139436(a(n)) = 1.
%C Conjecture: the sequence is finite and a(13)=41 is the largest term.
%K nonn,fini,full
%O 1,1
%A _Reinhard Zumkeller_, Apr 21 2008
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