%I #15 Feb 17 2017 17:06:23
%S 41,146,386,593,667,688,906,927,930,1025,1032,1111,1410,1437,1638,
%T 1829,1960,2045,2381,2384,2618,2807,2909,3059,3164,3268,3370,3783,
%U 3861,4043,4054,4198,4284,4539,4934,4968,4992,5009,5047,5049,5111,5217,5237,5342,5367
%N Numbers n such that (n^83-1)/(n-1) is prime.
%H Vincenzo Librandi, <a href="/A217087/b217087.txt">Table of n, a(n) for n = 1..300</a>
%t Select[Range[2, 1000], PrimeQ[(#^83 - 1)/(# - 1)] &] (* _T. D. Noe_, Sep 26 2012 *)
%o (PARI) is(n)=isprime((n^83-1)/(n-1)) \\ _Charles R Greathouse IV_, Feb 17 2017
%Y Cf. A002384, A049409, A100330, A162862, A217070-A217089.
%K nonn
%O 1,1
%A _Tim Johannes Ohrtmann_, Sep 26 2012
%E More terms from _T. D. Noe_, Sep 26 2012