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 A221637 #12 Feb 20 2017 14:53:46 %S A221637 3,127,227,1009,1951,5101,14011 %N A221637 Numbers n such that (15^n + 14^n)/29 is prime. %C A221637 All terms are prime. %C A221637 a(8) > 10^5. %t A221637 Select[ Prime[ Range[1, 100000] ], PrimeQ[ (15^# + 14^#)/29 ]& ] %o A221637 (PARI) is(n)=ispseudoprime((15^n+14^n)/29) \\ _Charles R Greathouse IV_, Feb 20 2017 %Y A221637 Cf. A057180, A128072, A128343, A181141, A187819, A217095, A185239, A213216, A225191, A225097. %K A221637 hard,nonn,more %O A221637 1,1 %A A221637 _Robert Price_, May 28 2013