Search: id:A136027
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%I A136027
%S A136027 3,3,5,5,3,7,3,3,5,3,5,5,3,5,13,3,3,11,5,3,5,3,5,5,19,3,7,3,5,7,3,5,5,
%T A136027 11,3,13,5,3,7,7,3,5,3,17,7,5,3,11,5,23,5,3,5,5,3,5,7,3,11,7,3,3,5,5,3,
%U A136027 5,5,3,11,3,3,13,3,11,11,7,3,5,5,3,5,3,11,5,3,3,5,5,17,7,5,3,11,7,23,7
%N A136027 Smallest prime of the form (prime(k)-2*n)/(2*n+1), any k.
%C A136027 The associated prime(k) are in A136026.
%e A136027 a(1)=3 because 3 is smallest prime of the form (p-2)/3; in this case 
               prime(k)=11.
%e A136027 a(2)=3 because 3 is smallest prime of the form (p-4)/5; in this case 
               prime(k)=19.
%e A136027 a(3)=5 because 5 is smallest prime of the form (p-6)/7; in this case 
               prime(k)=41.
%t A136027 a = {}; Do[k = 1; While[ !PrimeQ[(Prime[k] - 2n)/(2n + 1)], k++ ]; AppendTo[a, 
               (Prime[k] - 2n)/(2n + 1)], {n, 1, 100}]; a
%Y A136027 Cf. A136019, A136020, A136026.
%Y A136027 Sequence in context: A087853 A095334 A071182 this_sequence A133772 A129972 
               A130829
%Y A136027 Adjacent sequences: A136024 A136025 A136026 this_sequence A136028 A136029 
               A136030
%K A136027 nonn,easy
%O A136027 1,1
%A A136027 Artur Jasinski (grafix(AT)csl.pl), Dec 10 2007
%E A136027 Edited by R. J. Mathar (mathar(AT)strw.leidenuniv.nl), May 17 2009

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