Search: id:A129864
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%I A129864
%S A129864 13,31,37,73,79,739,769,937,991,1009,1021,1201,1231,1249,1471,1597,1723,
%T A129864 1831,1879,1933,3049,3109,3121,3163,3301,3433,3571,3613,3697,3889,7207,
%U A129864 7321,7459,7507,7603,7687,7717,7951,7963,9349,9403,9421,9547,9613,9643
%N A129864 Numbers that are both lucky and emirp.
%F A129864 A000959 INTERSECTION A006567. a(n) is n element of A000959 AND a(n) is 
               an element of A000040 AND R(a(n)) = A004086(a(n)) is an element of 
               A000040.
%e A129864 a(9) = 1009 because 1009 is a lucky number A000959(154) and 1009 is an 
               emirp because 1009 is prime and R(1009) = 9001 is prime (but is not 
               lucky).
%Y A129864 Cf. A000040, A000959, A004086, A006567, A031157.
%Y A129864 Sequence in context: A040050 A040086 A023274 this_sequence A080387 A097443 
               A100589
%Y A129864 Adjacent sequences: A129861 A129862 A129863 this_sequence A129865 A129866 
               A129867
%K A129864 base,easy,nonn,less
%O A129864 1,1
%A A129864 Jonathan Vos Post (jvospost3(AT)gmail.com), May 23 2007
%E A129864 Corrected and extended by R. J. Mathar (mathar(AT)strw.leidenuniv.nl), 
               Jun 12 2007

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