Search: id:A159611
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%I A159611
%S A159611 2,3,7,55,6543
%N A159611 Indices, in the sequence of primes, of the known Fermat primes.
%H A159611 Walter Nissen, <a href="http://upforthecount.com">Home Page</a> (listed 
               in lieu of email address)
%e A159611 3, the Fermat prime corresponding to n = 0, is the 2nd prime, so a(0) 
               = 2. 17, the Fermat prime corresponding to n = 2, is the 7th prime, 
               so a(2) = 7.
%Y A159611 Cf. A019434, the Fermat primes, A000040, the primes.
%Y A159611 Sequence in context: A030090 A075461 A059785 this_sequence A156585 A087358 
               A057736
%Y A159611 Adjacent sequences: A159608 A159609 A159610 this_sequence A159612 A159613 
               A159614
%K A159611 nonn
%O A159611 1,1
%A A159611 Walter Nissen Apr 16 2009

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