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 A057462 #14 Jun 13 2017 11:53:08
%S A057462 0,10,24,864,2440,9438,68272,148602
%N A057462 Numbers n such that 10*11^n + 1 is prime.
%C A057462 a(9) > 2*10^5. - _Robert Price_, Jan 19 2015
%t A057462 Do[ If[ PrimeQ[ 10*11^n + 1 ], Print[ n ] ], {n, 0, 1000} ]
%t A057462 Select[Range[0, 4000], PrimeQ[(10*11^# + 1)] &] (* _Vincenzo Librandi_, Sep 28 2012 *)
%o A057462 (PARI) is(n)=ispseudoprime(10*11^n+1) \\ _Charles R Greathouse IV_, Jun 13 2017
%K A057462 nonn
%O A057462 1,2
%A A057462 _Robert G. Wilson v_, Sep 08 2000
%E A057462 a(5) from _Vincenzo Librandi_, Sep 28 2012
%E A057462 a(6)-a(8) from _Robert Price_, Jan 19 2015