%I A007617
%S A007617 3,5,7,9,11,13,14,15,17,19,21,23,25,26,27,29,31,33,34,35,37,38,39,
%T A007617 41,43,45,47,49,50,51,53,55,57,59,61,62,63,65,67,68,69,71,73,74,75,
%U A007617 76,77,79,81,83,85,86,87,89,90,91,93,94,95,97,98,99,101,103,105,107
%N A007617 Values not in range of Euler phi function.
%C A007617 Nontotient numbers.
%C A007617 All odd numbers >2 are in the sequence. The even numbers of the sequence 
               are in A005277.
%D A007617 Jerzy Browkin and Andrzej Schinzel, On integers not of the form n-phi(n), 
               Colloq. Math., 58 (1995) 55-58.
%D A007617 P. Erdos and R. R. Hall, Distinct values of Euler's phi-function, Mathematika, 
               23 (1976) 1-3.
%D A007617 Kevin Ford, The distribution of totients. Paul ErdHos (1913-1996). Ramanujan 
               J., 2 (1998) 67-151.
%D A007617 Kevin Ford, The distribution of totients, Electron. Res. Announc. Amer. 
               Math. Soc., 4 (1998) 27-34.
%D A007617 Kevin Ford, The number of solutions of phi(x)=m, Ann. of Math.(2), 150 
               (1999) 283-311.
%D A007617 R. K. Guy, Unsolved Problems in Number Theory, B36.
%D A007617 Helmut Maier and Carl Pomerance, On the number of distinct values of 
               Euler's phi -function, Acta Arith., 49 (1988) 263-275.
%D A007617 Zhang Ming-Zhi, On nontotients, J. Number Theory, 43 (1993) 168-173.
%H A007617 Walter Nissen, <a href="http://upforthecount.com">Home Page</a> (listed 
               in lieu of email address)
%e A007617 There are no solutions to phi(m)=14, so 14 is a member of the sequence.
%Y A007617 Numbers not in A000010. Cf. A005277.
%Y A007617 Sequence in context: A050828 A081534 A097218 this_sequence A065878 A064996 
               A091569
%Y A007617 Adjacent sequences: A007614 A007615 A007616 this_sequence A007618 A007619 
               A007620
%K A007617 nonn
%O A007617 1,1
%A A007617 Walter Nissen