Search: id:A139293
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%I A139293
%S A139293 0,3,63,1023,262143,4194303,1073741823,17179869183
%N A139293 (2^(2p - 1)/8)-1, where p is prime.
%F A139293 a(n)=(A139286(n)/8)-1.
%Y A139293 Cf. A139286, A139287, A139288, A139289, A139290, A139291, A139292, A139294, 
               A139306.
%Y A139293 Sequence in context: A046181 A151993 A120053 this_sequence A133275 A123687 
               A159605
%Y A139293 Adjacent sequences: A139290 A139291 A139292 this_sequence A139294 A139295 
               A139296
%K A139293 more,nonn
%O A139293 1,2
%A A139293 Omar E. Pol (info(AT)polprimos.com), Apr 13 2008

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