Search: id:A016104
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%I A016104
%S A016104 1,3,13,16381
%N A016104 2^2^2^ ... 2^w (with n 2's), where w = 1.9287800.....
%C A016104 w is uniquely defined as the largest value such that for all n>0, a(n) 
               is prime. - Charles R Greathouse IV Oct 25 2006
%C A016104 Hardy's paper uses this as an example, although the sequence is not well-defined 
               there. The next term is probably 2^16382-35411, a 4932-digit prp. 
               - Charles R Greathouse IV Oct 25 2006
%D A016104 P. Ribenboim, Prime number records, Two-Year College Math. Jnl., 25 (1994), 
               pp. 280-290.
%D A016104 E. M. Wright, A prime-representing function, American Mathematical Monthly, 
               58 (1951), pp. 616-618.
%F A016104 a(0) = 1, a(n) = the greatest prime less than 2^(a(n-1)+1). - Charles 
               R Greathouse IV Oct 25 2006
%Y A016104 Cf. A086238.
%Y A016104 Sequence in context: A119987 A127855 A087333 this_sequence A112856 A007523 
               A092830
%Y A016104 Adjacent sequences: A016101 A016102 A016103 this_sequence A016105 A016106 
               A016107
%K A016104 nonn
%O A016104 0,2
%A A016104 Robert G. Wilson v (rgwv(AT)rgwv.com)

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