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 A023336 #18 Sep 08 2022 08:44:47 %S A023336 34613,165443,321053,363403,474143,496333,528673,631853,834503,957563, %T A023336 1199623,1274803,1817093,1918733,2063423,2611663,2889703,3224233, %U A023336 3652703,3697433,3824413,3852973,4655873,4708793,5089943,5508263,5937853,6067073 %N A023336 Primes that remain prime through 5 iterations of function f(x) = 3x + 4. %C A023336 Primes p such that 3*p+4, 9*p+16, 27*p+52, 81*p+160 and 243*p+484 are also primes. - _Vincenzo Librandi_, Aug 05 2010 %H A023336 John Cerkan, <a href="/A023336/b023336.txt">Table of n, a(n) for n = 1..10000</a> %F A023336 a(n) == 33 (mod 70). - _John Cerkan_, Oct 10 2016 %o A023336 (Magma) [n: n in [1..25000000] | IsPrime(n) and IsPrime(3*n+4) and IsPrime(9*n+16) and IsPrime(27*n+52) and IsPrime(81*n+160) and IsPrime(243*n+484)] // _Vincenzo Librandi_, Aug 05 2010 %Y A023336 Subsequence of A023209, A023247, A023278, A023308, and A034936. %K A023336 nonn %O A023336 1,1 %A A023336 _David W. Wilson_