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A065869 a(n) = (2^(prime(n)^2) + 1)/(2^prime(n) + 1). 1

%I #11 Jun 17 2018 02:02:11

%S 57,1016801,4363953127297,1297440698667560637290197228189697,

%T 91332703321545501540374299322682400349546864641,

%U 7588492464653843921408409789152927606760448769729047438304822150910706202078740481

%N a(n) = (2^(prime(n)^2) + 1)/(2^prime(n) + 1).

%H Harry J. Smith, <a href="/A065869/b065869.txt">Table of n, a(n) for n = 2..16</a>

%o (PARI) { for (n = 2, 16, a = (2^(prime(n)^2) + 1)/(2^prime(n) + 1); write("b065869.txt", n, " ", a) ) } \\ _Harry J. Smith_, Nov 02 2009

%Y Cf. A051156.

%K nonn

%O 2,1

%A _Benoit Cloitre_, Dec 07 2001

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Last modified April 19 02:12 EDT 2024. Contains 371782 sequences. (Running on oeis4.)