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 A116058 #2 Mar 30 2012 17:40:36 %S A116058 5,12,19822,281984,548600,1665863,6154167,668316881,705145645, %T A116058 4259192969,6791367165,13266297467 %N A116058 n times the n-th prime is made of nontrivial runs of identical digits. %C A116058 A run of length 1 is trivial. %e A116058 p(4259192969)=103577289271 and %e A116058 4259192969*103577289271=441155662211122335599. %Y A116058 Cf. A033023, A116059, A116060. %K A116058 nonn,base %O A116058 1,1 %A A116058 _Giovanni Resta_, Feb 13 2006