Search: id:A117092
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%I A117092
%S A117092 2,3,4,5,7,10,11,12,13,16,17,19,22,23,27,28,29,31,37,40,41,42,43,45,46,
%T A117092 47,52,53,57,58,59,60,61,66,67,70,71,72,73,79,82,83,87,88,89,97,100
%N A117092 Numbers n such that nextprime(2*n)>2*nextprime(n) (if p is prime then 
               nextprime(p)=p).
%e A117092 nextprime(2*12)=29 and nextprime(2)*nextprime(12)=2*13 then 12 is member 
               because 29>26
%o A117092 (PARI) for(i=1,100,if(nextprime(2*i)<nextprime(2)*nextprime(i),print1(i,
               ",")))
%Y A117092 Sequence in context: A137929 A094617 A047502 this_sequence A002504 A133431 
               A123091
%Y A117092 Adjacent sequences: A117089 A117090 A117091 this_sequence A117093 A117094 
               A117095
%K A117092 easy,nonn
%O A117092 1,1
%A A117092 Mohammed Bouayoun (mohammed.bouayoun(AT)sanef.com), Apr 18 2006
%E A117092 Corrected by T. D. Noe (noe(AT)sspectra.com), Oct 25 2006

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