%I A033974
%S A033974 1,38,19,704,352,176,88,44,22,11,408,204,102,51,1888,944,
%T A033974 472,236,118,59,2184,1092,546,273,10102,5051,186888,93444,
%U A033974 46722,23361,864358,432179,15990624,7995312,3997656,1998828
%N A033974 Trajectory of 1 under map n->37n+1 if n odd, n->n/2 if n even
%Y A033974 Sequence in context: A121672 A160147 A033358 this_sequence A143721 A070725 
               A022994
%Y A033974 Adjacent sequences: A033971 A033972 A033973 this_sequence A033975 A033976 
               A033977
%K A033974 nonn
%O A033974 0,2
%A A033974 N. J. A. Sloane (njas(AT)research.att.com).