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%I #8 Aug 24 2019 10:07:14
%S 63,188,94,47,140,70,35,104,52,26,13,38,19,56,28,14,7,20,10,5,14,7,20,
%T 10,5,14,7,20,10,5,14,7,20,10,5,14,7,20,10,5,14,7,20,10,5,14,7,20,10,
%U 5,14,7,20,10,5,14,7,20,10,5
%N x->x/2 if x even, x->3x-1 if x odd.
%D R. K. Guy, Unsolved Problems in Number Theory, E16.
%H <a href="/index/Rec#order_05">Index entries for linear recurrences with constant coefficients</a>, signature (0, 0, 0, 0, 1).
%t PadRight[{63,188,94,47,140,70,35,104,52,26,13,38,19,56,28},120,{14,7,20,10,5}] (* _Harvey P. Dale_, Aug 24 2019 *)
%K nonn
%O 0,1
%A _N. J. A. Sloane_.
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