%I A072106
%S A072106 0,0,0,1,1,1,2,3,2,3,4,3,5,5,4,7,8,5,9,7,5,9,11,7,10,11,10,11,15,7,16,
%T A072106 15,11,15,13,11,20,17,14,15,23,11,24,19,15,21,26,15,23,19,19,23,30,17,
%U A072106 23,23,21,27,33,15,34,29,22,31,27,19,38,31,28,23,41,23,42,35,26,35,37
%N A072106 All nontotients [even and odd] in reduced residue system of n.
%e A072106 n=113: reduced residue system consists of 112 numbers: Card[OddNonTotients(113)]=56-1, 
               EvenNonTotients={14,26,34,38,50,62,68,74,76,86,90,94,98}, i.e. 13 
               terms, therefore a(113)=56-1+13=68=a(113).
%Y A072106 Cf. A000010, A037225, A072451-A072457, A005277, A002202.
%Y A072106 Sequence in context: A111439 A020986 A095161 this_sequence A124524 A124525 
               A106788
%Y A072106 Adjacent sequences: A072103 A072104 A072105 this_sequence A072107 A072108 
               A072109
%K A072106 nonn
%O A072106 1,7
%A A072106 Labos E. (labos(AT)ana.sote.hu), Jun 19 2002