Search: id:A008882
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%I A008882
%S A008882 99,298,149,448,224,112,56,28,14,7,22,11,34,17,52,26,13,
%T A008882 40,20,10,5,16,8,4,2,1,4,2,1,4,2,1,4,2,1,4,2,1,4,2,1,4,
%U A008882 2,1,4,2,1,4,2,1,4,2,1,4,2,1,4,2,1,4,2,1,4,2,1,4,2,1,4
%N A008882 3x+1 sequence starting at 99.
%D A008882 R. K. Guy, Unsolved Problems in Number Theory, E16.
%H A008882 <a href="Sindx_3.html#3x1">Index entries for sequences related to 3x+1 
               (or Collatz) problem</a>
%p A008882 f := proc(n) option remember; if n = 0 then 99; elif f(n-1) mod 2 = 0 
               then f(n-1)/2 else 3*f(n-1)+1; fi; end;
%Y A008882 Sequence in context: A044812 A125820 A008902 this_sequence A156757 A027579 
               A157659
%Y A008882 Adjacent sequences: A008879 A008880 A008881 this_sequence A008883 A008884 
               A008885
%K A008882 nonn
%O A008882 0,1
%A A008882 N. J. A. Sloane (njas(AT)research.att.com).

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