%I A039652
%S A039652 2,1,15,35,69,255,535,949,1957,2513,2923,4531,17701,22957,54589,79421,
%T A039652 80029,84493,98581,102827,115243,239111,291149,310813,362621,398893,
%U A039652 598341,801923,838307,1063493,1079833,1123813,1311121,1329403,1582439
%N A039652 Becomes prime after n iterations of f(x) = phi(x)+1 (least inverse of 
               A039651).
%Y A039652 Cf. A039649-A039656.
%Y A039652 Sequence in context: A106204 A083074 A141510 this_sequence A012894 A013076 
               A012890
%Y A039652 Adjacent sequences: A039649 A039650 A039651 this_sequence A039653 A039654 
               A039655
%K A039652 nonn
%O A039652 0,1
%A A039652 David W. Wilson (davidwwilson(AT)comcast.net)