%I A107036
%S A107036 3,4,5,7,11,13,17,19,23,31,43,61,79,101,127,167,191,199,313,347,701,
%T A107036 1709,2617,3539,5807,10501,10691,11279,12391,14479,42737,83339,95369,
%U A107036 117239,127031,138937,141079,267017,269987,374321
%N A107036 Indices of prime Jacobsthal numbers.
%C A107036 All a(n) are prime except a(1) = 4. All prime a(n) are listed in A000978[n] 
               = {3,5,7,11,13,17,19,23,31,43,61,79,101,127,167,...} Numbers n such 
               that (2^n + 1)/3 is prime. - Alexander Adamchuk (alex(AT)kolmogorov.com), 
               Oct 03 2006
%F A107036 a(n) = A000978[n] for n>1. - Alexander Adamchuk (alex(AT)kolmogorov.com), 
               Oct 03 2006
%Y A107036 Cf. A000978, A001045, A001605.
%Y A107036 Sequence in context: A046642 A140826 A081735 this_sequence A001605 A101762 
               A139455
%Y A107036 Adjacent sequences: A107033 A107034 A107035 this_sequence A107037 A107038 
               A107039
%K A107036 nonn
%O A107036 0,1
%A A107036 Paul Barry (pbarry(AT)wit.ie), May 09 2005
%E A107036 More terms from Alexander Adamchuk (alex(AT)kolmogorov.com), Oct 03 2006