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 A049485 #27 Mar 15 2025 11:29:46
%S A049485 19,41,43,59,71,73,79,101,103,107,109,167,173,181,197,199,241,257,263,
%T A049485 283,293,307,313,317,337,379,397,409,421,431,433,479,491,503,509,523,
%U A049485 547,577,599,601,613,641,643,653,659,661,683,691,701,727,733,751,769
%N A049485 Primes p such that p + 510510 is also prime, where 510510 is the 7th primorial number A002110(7).
%C A049485 p and p+510510 are not necessarily consecutive primes.
%H A049485 Daniel Starodubtsev, <a href="/A049485/b049485.txt">Table of n, a(n) for n = 1..10000</a>
%e A049485 19 is a term since it is prime and 19 + 510510 = 510529 is also prime.
%t A049485 lst={};Do[p=Prime[n];If[PrimeQ[p+510510],AppendTo[lst,p]],{n,6!}];lst (* _Vladimir Joseph Stephan Orlovsky_, Jan 04 2009 *)
%o A049485 (PARI) isok(p) = isprime(p) && isprime(p + 510510); \\ _Amiram Eldar_, Mar 15 2025
%Y A049485 Cf. A002110, A045320.
%Y A049485 Cf. A001359, A023201, A049481, A049482, A049483, A049484, A154114.
%K A049485 nonn
%O A049485 1,1
%A A049485 _Labos Elemer_