%I A039651
%S A039651 1,0,0,1,0,1,0,1,1,1,0,1,0,1,2,2,0,1,0,2,1,1,0,2,2,1,1,1,0,2,0,1,2,1,3,
%T A039651 1,0,1,3,1,0,1,0,2,3,1,0,1,1,2,3,3,0,1,1,3,1,1,0,1,0,1,1,3,2,2,0,3,4,3,
%U A039651 0,3,0,1,1,1,1,3,0,3,2,1,0,3,3,1,2,1,0,3,1,4,1,1,1,3,0,1,1,1,0,3,0,2,2
%N A039651 Number of iterations of f(x) = phi(x)+1 on n required to reach a prime.
%Y A039651 Cf. A039649-A039656.
%Y A039651 Sequence in context: A112170 A113685 A049825 this_sequence A038190 A163537 
               A117449
%Y A039651 Adjacent sequences: A039648 A039649 A039650 this_sequence A039652 A039653 
               A039654
%K A039651 nonn
%O A039651 1,15
%A A039651 David W. Wilson (davidwwilson(AT)comcast.net)