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 A175173 #16 May 30 2025 11:10:31 %S A175173 3,5,11,47,53,191,34763 %N A175173 Primes p such that 2^p + 5 is also prime. %C A175173 a(8) > 5*10^5. - _Robert Price_, Sep 18 2015 %F A175173 A000040 INTERSECT A059242. - _R. J. Mathar_, May 02 2010 %e A175173 For p=3, 2^3+5=13; p=5, 2^5+5=37; p=11, 2^11+5=2053 %t A175173 Select[Prime@ Range@ 1000, PrimeQ[2^# + 5] &] (* _Michael De Vlieger_, Sep 18 2015 *) %o A175173 (Magma) [p: p in PrimesUpTo(7000) | IsPrime(2^p+5)]; %K A175173 nonn %O A175173 1,1 %A A175173 _Vincenzo Librandi_, Mar 09 2010 %E A175173 a(7) from _Robert Price_, Sep 18 2015