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 A214655 #10 Oct 17 2015 07:48:38 %S A214655 3,5,29,54799 %N A214655 Numbers n such that 25^n - 24^n is prime or a strong pseudoprime. %C A214655 All terms are prime. %C A214655 No other terms less than 10^5. - _Robert Price_, Jul 24 2012 %t A214655 Select[Range[10^5], PrimeQ[25^#-24^# ]&] %Y A214655 Cf. A000043, A057468, A059801, A059802, A059803, A062572-A062589, A214658, A062592-A062666. %K A214655 nonn,hard,bref,more %O A214655 1,1 %A A214655 _Robert Price_, Jul 24 2012 %E A214655 Edited by _M. F. Hasler_, Sep 21 2013