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 A023254 #18 Sep 08 2022 08:44:47 %S A023254 7,11,29,41,53,79,83,107,113,137,139,149,163,181,193,233,239,359,379, %T A023254 401,449,487,503,547,601,643,653,809,839,877,883,911,1009,1087,1093, %U A023254 1103,1117,1171,1259,1289,1303,1367,1373,1481,1511,1579,1637,1747,1787,1801 %N A023254 Primes that remain prime through 2 iterations of the function f(x) = 5x + 6. %C A023254 Primes p such that 5*p+6 and 25*p+36 are also primes. - _Vincenzo Librandi_, Aug 04 2010 %H A023254 John Cerkan, <a href="/A023254/b023254.txt">Table of n, a(n) for n = 1..10000</a> %o A023254 (Magma) [n: n in [0..100000] | IsPrime(n) and IsPrime(5*n+6) and IsPrime(25*n+36)] // _Vincenzo Librandi_, Aug 04 2010 %Y A023254 Subsequence of A081759. %K A023254 nonn %O A023254 1,1 %A A023254 _David W. Wilson_