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 A182784 #12 Sep 08 2022 08:45:55
%S A182784 31,1249,2591,4801,8191,13121,76831,131071,388961,1062881,1229311,
%T A182784 2672671,6223391,7496191,9759361,10616831,12499999,13530401,29552671,
%U A182784 31505921,35701249,42762751,48019999,63281249,66724351,77900161,90424351,99574271,149610401
%N A182784 Primes of the form 2*n^4-1.
%C A182784 Subsequence of A066436. - _R. J. Mathar_, Dec 02 2010
%H A182784 Vincenzo Librandi, <a href="/A182784/b182784.txt">Table of n, a(n) for n = 1..1000</a>
%F A182784 a(n) = 2*A182783(n)^4-1. - _R. J. Mathar_, Dec 02 2010
%t A182784 Select[Table[2 n^4 - 1, {n, 100}], PrimeQ] (* _Vincenzo Librandi_, Sep 01 2012 *)
%o A182784 (Magma) [a: n in [1..350] | IsPrime(a) where a is 2*n^4-1];
%Y A182784 Cf. A182783, A182785.
%K A182784 nonn,easy
%O A182784 1,1
%A A182784 _Vincenzo Librandi_, Dec 02 2010