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 A074326 #18 Aug 28 2019 11:45:57
%S A074326 1,6,8,9,17,23,27,39,48
%N A074326 Numbers n such that difference between (1+2^n)-th and (2^n)-th primes is 2.
%F A074326 Solutions to A051439(x) - A033844(x) = 2,
%e A074326 n=39: 2^39=549755813888, prime(549755813889) = 16149760533343, prime(549755813888) = 16149760533341, difference=2, just twin primes.
%t A074326 s=0; Do[s=Prime[1+2^n]-Prime[2^n]; If[s==2, Print[{n, Prime[2^n]}]], {n, 1, 40}]
%t A074326 diffQ[n_]:=Module[{prn=Prime[2^n]},NextPrime[prn]-prn==2]; Select[ Range[ 40],diffQ] (* _Harvey P. Dale_, Aug 21 2014 *)
%Y A074326 Cf. A029707, A051439, A033844, A073798, A000079.
%K A074326 more,nonn
%O A074326 1,2
%A A074326 _Labos Elemer_, Aug 21 2002
%E A074326 a(9) from _Chai Wah Wu_, Feb 28 2019