This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A160027 #10 Sep 08 2022 08:45:44
%S A160027 17,19,31,271,65551,4294967311
%N A160027 Primes of the form 2^(2^k)+15.
%C A160027 Fermat primes of order 15.
%C A160027 The number of Fermat primes of order 15 exceeds the number of known Fermat primes.
%C A160027 Terms given correspond to n= 0, 1, 2, 3, 4 and 5.
%C A160027 Next term >= 2^2^16 + 15. - _Vincenzo Librandi_, Jun 07 2016
%C A160027 Next term >= 2^2^17 + 15. - _Charles R Greathouse IV_, Jun 07 2016
%F A160027 Intersection of the primes and the set of Fermat numbers F(k,m) = 2^(2^k)+m of order m=15.
%e A160027 For k = 5, 2^32 + 15 = 4294967311 is prime.
%t A160027 Select[Table[2^(2^n) + 15, {n, 0, 10}], PrimeQ] (* _Vincenzo Librandi_, Jun 07 2016 *)
%o A160027 (PARI) g(n,m) = for(x=0,n,y=2^(2^x)+m;if(ispseudoprime(y),print1(y",")))
%o A160027 (Magma) [a: n in [0..15] | IsPrime(a) where a is 2^(2^n)+15]; // _Vincenzo Librandi_, Jun 07 2016
%Y A160027 Cf. A019434 (order 1), A104067 (superset for order 13), A160028 (order 81).
%Y A160027 Cf. similar sequences listed in A273547.
%K A160027 nonn
%O A160027 1,1
%A A160027 _Cino Hilliard_, Apr 30 2009
%E A160027 Edited by _R. J. Mathar_, May 08 2009