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 A144134 #10 Dec 04 2022 18:37:14
%S A144134 62527434837271029229
%N A144134 Primes of the form GegenbauerC[n,2,3].
%C A144134 No other terms < 10^10000. - _Robert Israel_, Apr 27 2020
%H A144134 <a href="/index/O#oneterm">Index entries for one-term sequences</a>
%p A144134 f:= gfun:-rectoproc({(-n - 3)*a(n + 3) + (24 + 6*n)*a(n + 2) + (-5 - n)*a(n + 1), a(0) = 1, a(1) = 12, a(2) = 106},a(n),remember):
%p A144134 select(isprime, map(f, [$0..4000])); # _Robert Israel_, Apr 27 2020
%t A144134 lst={};Do[p=GegenbauerC[n,2,3];If[PrimeQ[p],AppendTo[lst,p]],{n,15^3}];lst
%t A144134 Select[GegenbauerC[Range[25],2,3],PrimeQ] (* _Harvey P. Dale_, Dec 04 2022 *)
%Y A144134 Primes in A144133.
%K A144134 nonn,bref
%O A144134 1,1
%A A144134 _Vladimir Joseph Stephan Orlovsky_, Sep 11 2008