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 A264030 #12 Dec 05 2015 22:12:14 %S A264030 3,5,7,11,13,17,19,37,41,43,47,53,61,71,73,89,97,103,107,109,127,131, %T A264030 137,139,151,163,167,173,191,193,197,211,223,227,233,239,241,257,263, %U A264030 269,277,283,293,311,313,317,331,347,349,359,367,379,397,419,433,443,449 %N A264030 Primes p such that A203069(p) is also prime. %C A264030 This provides an ordered subset of the prime numbers. %e A264030 A203069(3)=7, both are prime numbers, so the 1st entry=3. %e A264030 A203069(53)=53, both are prime numbers, so the 12th entry=53. %Y A264030 Cf. A203069. %K A264030 nonn %O A264030 1,1 %A A264030 _Bill McEachen_, Nov 01 2015 %E A264030 More terms from _Michel Marcus_, Nov 02 2015