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 A156109 #12 Sep 08 2022 08:45:41 %S A156109 5,11,23,43,53,61,71,113,131,163,193,233,313,331,383,421,431,443,641, %T A156109 673,683,691,733,751,821,911,1013,1033,1051,1213,1283,1453,1531,1583, %U A156109 1601,1723,1741,1871,1913,1993,2063,2143,2203,2251,2381,2423,2441,2503 %N A156109 Primes p such that p+18 and p+36 are both prime. %C A156109 A153418 INTERSECT A156104. [_Bruno Berselli_, Nov 01 2012] %H A156109 Vincenzo Librandi, <a href="/A156109/b156109.txt">Table of n, a(n) for n = 1..1000</a> %p A156109 a := proc (n) if isprime(ithprime(n)+18) = true and isprime(ithprime(n)+36) = true then ithprime(n) else end if end proc: seq(a(n), n = 1 .. 400); # _Emeric Deutsch_, Mar 02 2009 %t A156109 Select[Prime[Range[3000]], And @@ PrimeQ[{# + 18, # + 36}]&] (* _Vincenzo Librandi_, Oct 31 2012 *) %o A156109 (Magma) [p: p in PrimesUpTo(3000)|IsPrime(p + 18) and IsPrime (p + 36)]; // _Vincenzo Librandi_, Oct 31 2012 %Y A156109 Cf. A153418, A156104. %K A156109 nonn,easy %O A156109 1,1 %A A156109 _Vincenzo Librandi_, Feb 08 2009 %E A156109 More terms from _Emeric Deutsch_, Mar 02 2009