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 A155021 #2 Mar 31 2012 12:38:20
%S A155021 0,42,1566,2154,4482,6054,6252,7566,7968,8478,9546,10128,10992,14286,
%T A155021 14574,15846,16212,16248,16854,17268,17976,18186,22434,23658,23952,
%U A155021 24234,24408,26154,26742,28908,29262,30018,30522,32424,33174,33378
%N A155021 Values of n such that n^a-+a are primes, a=5.
%t A155021 a={};Do[m=n^5;If[PrimeQ[m-5]&&PrimeQ[m+5],AppendTo[a,n]],{n,0,9!}];a
%Y A155021 Cf. A108701, A143904
%K A155021 nonn
%O A155021 1,2
%A A155021 _Vladimir Joseph Stephan Orlovsky_, Jan 19 2009