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%I #7 Sep 08 2022 08:46:17
%S 491,503,743,4294967783,
%T 115792089237316195423570985008687907853269984665640564039457584007913129640423
%N Primes of the form 2^(2^n) + 487.
%C Terms given correspond to n = 1, 2, 3, 5 and 8.
%C Next term >= 2^2^35 + 487. - _Charles R Greathouse IV_, Jun 07 2016
%t Select[Table[2^(2^n) + 487, {n, 0, 15}], PrimeQ]
%o (Magma) [a: n in [0..16] | IsPrime(a) where a is 2^(2^n)+487];
%o (PARI) for(n=0,8, if(ispseudoprime(t=2^2^n+357), print1(t", "))) \\ _Charles R Greathouse IV_, Jun 07 2016
%Y Cf. similar sequences listed in A273547.
%K nonn
%O 1,1
%A _Vincenzo Librandi_, Jun 03 2016
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