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 A269836 #18 Sep 13 2024 15:57:54
%S A269836 2,17,65537
%N A269836 Primes p of the form k^(2*k) + 1.
%C A269836 Prime terms from A167436.
%C A269836 Also primes p of the form (k^2)^k + 1.
%C A269836 Corresponding values of k: 1, 2, 4, ...; if a(4) exists, k must be larger than 1024.
%e A269836 65537 = 4^8 + 1 = 16^4 + 1.
%t A269836 Select[Table[n^(2n)+1,{n,20}],PrimeQ] (* _Harvey P. Dale_, Apr 01 2021 *)
%o A269836 (Magma) [n^(2*n) + 1: n in [1..700] | IsPrime(n^(2*n) + 1)];
%Y A269836 Cf. A121270 (primes of the form k^k + 1), A167436 (n^(2*n) + 1).
%K A269836 nonn,bref,hard
%O A269836 1,1
%A A269836 _Jaroslav Krizek_, Mar 06 2016