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 A163320 #12 Jul 20 2025 08:58:06
%S A163320 3,157,34359781243
%N A163320 Primes of the form 2^k + k^3.
%C A163320 The next term is too large to include.
%H A163320 Amiram Eldar, <a href="/A163320/b163320.txt">Table of n, a(n) for n = 1..6</a>
%F A163320 a(n) = 2^A058015(n) + A058015(n)^3. - _R. J. Mathar_, Jul 25 2009
%t A163320 f[n_]:=2^n+n^3; lst={};Do[If[PrimeQ[f[n]],AppendTo[lst,f[n]]],{n,2*6!}];lst
%Y A163320 Cf. A058015 (corresponding values of k).
%K A163320 nonn
%O A163320 1,1
%A A163320 _Vladimir Joseph Stephan Orlovsky_, Jul 24 2009