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 A059676 #10 May 22 2017 11:43:44 %S A059676 8,14,42,384,564,4256,6368,21132,27180,96584,349656,545082 %N A059676 Numbers n such that n*5^n - 1 is prime. %H A059676 Steven Harvey, <a href="http://harvey563.tripod.com/GeneralizedWoodallPrimes.txt">Generalized Woodall Search</a> %t A059676 Do[ If[ PrimeQ[ n*5^n - 1 ], Print[ n ]], {n, 1, 4000} ] %o A059676 (PARI) is(n)=ispseudoprime(n*5^n-1) \\ _Charles R Greathouse IV_, May 22 2017 %K A059676 nonn %O A059676 1,1 %A A059676 _Robert G. Wilson v_, Feb 05 2001 %E A059676 More terms from Herman Jamke (hermanjamke(AT)fastmail.fm), Jan 05 2008 %E A059676 a(11)-a(12) from Harvey link by _Ray Chandler_, Apr 10 2016