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 A134966 #7 Jul 04 2013 11:40:10
%S A134966 2357,2753,3257,3527,5237,5273,7253,7523
%N A134966 Primes that use all of the prime digits 2,3,5,7 exactly once.
%C A134966 Permutations of the four prime digits 2, 3, 5, 7 that are primes. - _Lekraj Beedassy_, May 12 2009
%t A134966 Select[FromDigits/@Permutations[{2,3,5,7}],PrimeQ] (* _Harvey P. Dale_, Jul 04 2013 *)
%Y A134966 Cf. A108419, A124674, A177275.
%K A134966 fini,full,nonn,base
%O A134966 1,1
%A A134966 _Lekraj Beedassy_, Feb 04 2008