%I #14 Sep 08 2022 08:46:04
%S 14,53,55,58,71,76,82,211,248,271,296,316,430,433,439,472,545,553,555,
%T 596,663,677,682,746,814,832,885,926,947,959,1048,1121,1146,1175,1207,
%U 1300,1302,1390,1404,1445,1466,1541,1650,1699,1702,1706,1756,1757,1782,1902
%N Numbers n such that (n^41-1)/(n-1) is prime.
%H Vincenzo Librandi, <a href="/A217077/b217077.txt">Table of n, a(n) for n = 1..1000</a>
%t Select[Range[2, 2000], PrimeQ[(#^41 - 1)/(# - 1)] &] (* _T. D. Noe_, Sep 26 2012 *)
%o (Magma) [n: n in [2..2000] |IsPrime((n^41 - 1) div (n - 1))]; // _Vincenzo Librandi_, Sep 28 2012
%o (PARI) is(n)=isprime((n^41-1)/(n-1)) \\ _Charles R Greathouse IV_, Feb 17 2017
%Y Cf. A002384, A049409, A100330, A162862, A217070-A217089.
%K nonn,easy
%O 1,1
%A _Tim Johannes Ohrtmann_, Sep 26 2012
%E More terms from _T. D. Noe_, Sep 26 2012