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 A061735 #15 Sep 23 2013 13:46:03 %S A061735 5881,23209,31391,39841,43801,53089,53881,61151,65831,88079,92569, %T A061735 99961,101089,102001,111409,135719,136751,141961,150721,169991,175081, %U A061735 196081,207481,216841,224401,250799,256369,271489,275521,276721,285757 %N A061735 Primes with 31 as smallest positive primitive root. %H A061735 Vincenzo Librandi, <a href="/A061735/b061735.txt">Table of n, a(n) for n = 1..5000</a> %t A061735 Select[Prime@Range@25000, PrimitiveRoot@# == 31 &] (* _Robert G. Wilson v_, May 11 2001 *) %Y A061735 Cf. A001918, A001126, A019357. %K A061735 nonn %O A061735 1,1 %A A061735 _Klaus Brockhaus_, May 06 2001