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 A342184 #18 Mar 18 2021 05:55:23 %S A342184 7,13,31,97,109,157,271,523,601,691,769,829,1063,1069,1201,1249,1291, %T A342184 1483,1489,1567,1579,1609,1693,1747,1831,2203,2281,2383,2803,2887, %U A342184 2953,3511,3967,4513,4651,5023,5059,5437,5653,5779,5821,6151,6163,6199,6361,6367 %N A342184 Primes q such that 10*q-3 and 10*q+1 are cousin primes. %C A342184 A pair of cousin primes are primes of the form p and p+4 (where p+2 may or may not be a prime). %C A342184 Generates cousin primes such that the last digits of the primes are 7 and 1 in base 10. %o A342184 (PARI) isok(p) = isprime(p) && isprime(10*p-3) && isprime(10*p+1); \\ _Michel Marcus_, Mar 05 2021 %Y A342184 Cf. A046132, A342183, A342185. %K A342184 nonn %O A342184 1,1 %A A342184 _Tamas Nagy_, Mar 04 2021