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 A117639 #8 Sep 25 2024 10:29:34
%S A117639 2,3,5,7,37,73,337,373,733
%N A117639 Complete primes: prime numbers such that every permutation of its digits is prime and all the digits are primes.
%e A117639 337 is a complete prime because 337 is prime and its permutations (373,733) are prime and the digits (3 and 7) are also prime.
%t A117639 Select[Prime[Range[10^4]],ContainsOnly[IntegerDigits[#],{2,3,5,7}]&&AllTrue[FromDigits/@Permutations[IntegerDigits[#]],PrimeQ]&] (* _James C. McMahon_, Sep 25 2024 *)
%Y A117639 Cf. A003459.
%K A117639 fini,nonn,base
%O A117639 1,1
%A A117639 Luc Stevens (lms022(AT)yahoo.com), Apr 09 2006