Search: id:A065134
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%I A065134
%S A065134 0,1,0,2,0,3,0,1,2,1,2,1,2,3,4,3,4,3,4,5,6,5,6,7,8,0,1,9,0,9,10,0,1,2,
               3,
%T A065134 1,2,3,4,2,3,1,2,3,4,2,3,4,5,6,7,5,6,7,8,9,10,8,9,7,8,9,10,11,12,10,11,
%U A065134 12,13,11,12,10,11,12,13,14,15,13,14,15,16,14,15,16,17,18,19,17,18,19
%N A065134 Remainder when n is divided by the number of primes not exceeding n.
%C A065134 Also remainder when the number of nonprimes is divided by the number 
               of primes (not exceeding n).
%H A065134 Harry J. Smith, <a href="b065134.txt">Table of n, a(n) for n=2,...,1000</
               a>
%F A065134 a(n) = n (mod pi(n)).
%e A065134 n = 2: Pi[2] = 1,Mod[1,1] = 0, the first term = a(2) = 0; n = 100: Pi[100] 
               = 25, Mod[100,25] = 0 = a(100); n = 20: Pi[20] = 8, Mod[20,8] = 4 
               = a(20).
%o A065134 (PARI) { for (n=2, 1000, write("b065134.txt", n, " ", n%primepi(n)) ) 
               } [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Oct 11 2009]
%Y A065134 Cf. A000720.
%Y A065134 Cf. A000720, A057809, A057810, A000040, A065134, A004648, A062298, A065858-A065864, 
               A065133
%Y A065134 Sequence in context: A164658 A079067 A160271 this_sequence A088673 A035614 
               A133735
%Y A065134 Adjacent sequences: A065131 A065132 A065133 this_sequence A065135 A065136 
               A065137
%K A065134 nonn
%O A065134 2,4
%A A065134 Labos E. (labos(AT)ana.sote.hu), Oct 15 2001
%E A065134 Term a(1) removed so OFFSET changed from 1,5 to 2,4 by Harry J. Smith 
               (hjsmithh(AT)sbcglobal.net), Oct 11 2009
%E A065134 Since OFFSET is 2,4; Term a(1) removed and a(91) added by Harry J. Smith 
               (hjsmithh(AT)sbcglobal.net), Oct 11 2009

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