%I A129741
%S A129741 2,3,7,23,59,157,11,139,8209,9257,620297,983,4003,1847,9803,1687054711,
%T A129741 1433,33008447,83,101,113,51563,61,823,5381,20117,262650531833,6329,197,
%U A129741 519606349,10259,136667817691,11887,2621,564188663,42591667,13933
%N A129741 List of primitive prime divisors of the Somos-4 sequence (A006720) in 
               their order of occurrence.
%C A129741 Read A006720 term-by-term, factorize each term, write down any primes 
               not seen before.
%D A129741 G. Everest et al., Primes generated by recurrence sequences, Amer. Math. 
               Monthly, 114 (No. 5, 2007), 417-431.
%Y A129741 Cf. A006720, A129739, A129740.
%Y A129741 Sequence in context: A000057 A037231 A082449 this_sequence A006720 A084710 
               A088173
%Y A129741 Adjacent sequences: A129738 A129739 A129740 this_sequence A129742 A129743 
               A129744
%K A129741 nonn
%O A129741 1,1
%A A129741 N. J. A. Sloane (njas(AT)research.att.com), May 13 2007