Search: id:A129738
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%I A129738
%S A129738 3,5,11,7,43,17,19,31,683,13,2731,127,331,257,43691,73,174763,41,5419,
               23,
%T A129738 89,2796203,241,251,4051,8191,87211,29,113,59,3033169,151,715827883,65537,
%U A129738 67,20857,131071,281,86171,37,109,25781083,1777,524287,22366891,61681,
               83
%N A129738 List of primitive prime divisors of the Jacobsthal numbers A001045 in 
               their order of occurrence.
%C A129738 Read A001045 term-by-term, factorize each term, write down any primes 
               not seen before.
%D A129738 G. Everest et al., Primes generated by recurrence sequences, Amer. Math. 
               Monthly, 11 4 (No. 5, 2007), 417-431.
%D A129738 K. Zsigmondy, Zur Theorie der Potenreste, Monatsh. Math., 3 (1892), 265-284.
%Y A129738 Cf. A001045, A049883, A107036, A129733.
%Y A129738 Sequence in context: A145398 A087322 A094747 this_sequence A105603 A122133 
               A065019
%Y A129738 Adjacent sequences: A129735 A129736 A129737 this_sequence A129739 A129740 
               A129741
%K A129738 nonn
%O A129738 1,1
%A A129738 N. J. A. Sloane (njas(AT)research.att.com), May 13 2007

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