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 A007933 #24 Jul 14 2015 16:13:55 %S A007933 2,3,5,7,11,13,14,16,17,19,20,23,29,30,31,32,34,35,37,38,41,43,47,50, %T A007933 53,59,61,67,70,71,73,74,76,79,83,89,91,92,95,97,98,101,103,104,106, %U A007933 107,109,110,112,113,115,118,119,121,124,125,127,128,130,131,133 %N A007933 Some permutation of digits is a prime. %C A007933 Conjecture: a(n) ~ 3n/2. - _Charles R Greathouse IV_, Sep 19 2012 %D A007933 M. Le, On Smarandache Pseudo-Primes of Second Kind, Smarandache Notions Journal, Vol. 10, No. 1-2-3, 1999, 180. %H A007933 Eric M. Schmidt, <a href="/A007933/b007933.txt">Table of n, a(n) for n = 1..10000</a> %H A007933 F. Smarandache, <a href="http://www.gallup.unm.edu/~smarandache/OPNS.pdf">Only Problems, Not Solutions!</a>. %t A007933 t ={};Do[list1 = Permutations[IntegerDigits[n]];If[Length[Select[Table[FromDigits[n],{n,list1}], PrimeQ]] > 0,AppendTo[t, n]], {n, 133}]; t (* _Jayanta Basu_, Apr 24 2013 *) %t A007933 Select[Range@ 133, AnyTrue[FromDigits /@ Permutations@ IntegerDigits@ #, PrimeQ] &] (* _Michael De Vlieger_, Jul 14 2015, Version 10 *) %o A007933 (PARI) is(n)=if(n%3==0, return(n/10^valuation(n,10)==3)); my(d=digits(n),t=#d); for(i=0,t!-1, if(isprime(fromdigits(vecextract(d,numtoperm(t,i)))), return(1))); 0 \\ _Charles R Greathouse IV_, Jul 14 2015 %K A007933 nonn,base %O A007933 1,1 %A A007933 R. Muller