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 A061326 #13 Feb 01 2016 02:52:28 %S A061326 457,479,1319,1321,1399,2351,2953,3671,3881,3911,4129,4919,5519,5569, %T A061326 6359,6599,6961,7559,7561,8521,8689,8951,9241,9601,9769,10369,11113, %U A061326 11251,12007,12049,12239,12433,12721,12799,12889,13151,14159,14519 %N A061326 Primes with 13 as smallest positive primitive root. %H A061326 T. D. Noe, <a href="/A061326/b061326.txt">Table of n, a(n) for n=1..1000</a> %t A061326 Prime[ Select[ Range[2000], PrimitiveRoot[ Prime[ # ] ] == 13 & ] ] %t A061326 (* or *) %t A061326 Select[ Prime@Range@2000, PrimitiveRoot@# == 13 &] (* _Robert G. Wilson v_, May 11 2001 *) %Y A061326 Cf. A001918, A001126, A019341. %K A061326 nonn %O A061326 1,1 %A A061326 _Klaus Brockhaus_, Apr 24 2001