Search: id:A053734
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%I A053734
%S A053734 0,0,1,0,1,1,1,0,2,1,1,2,1,1,5,0,1,6,1,2,11,1,1,16,4,1,30,2,1,57,
%T A053734 1,0,95,1,13,172,1,1,317,16,1,591,1,2,1124,1,1,2048,10,52,3857,
%U A053734 2,1,7286,97,16,13799,1,1,26386,1,1,49968,0,319,95331,1,2,182363
%N A053734 A000016-A000048 (when they are lined up so that the two 16's match).
%p A053734 f := proc(n) local d,sum1; sum1 := 0; for d from 1 to n do if d mod 2 
               = 1 and n mod d = 0 then sum1 := sum1+(phi(d)-mobius(d))*2^(n/d); 
               fi; od; sum1/(2*n); end;
%Y A053734 Sequence in context: A035693 A068696 A133009 this_sequence A057856 A117939 
               A105522
%Y A053734 Adjacent sequences: A053731 A053732 A053733 this_sequence A053735 A053736 
               A053737
%K A053734 nonn
%O A053734 1,9
%A A053734 N. J. A. Sloane (njas(AT)research.att.com), Mar 25 2000

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