%I
%S 2,19,69,88,138,155,205,234,336,420,425,455,470,525,555,561,608,626,
%T 667,674,766,779,846,851,937,971,998,1053,1055,1112,1137,1263,1329,
%U 1383,1445,1448,1499,1544,1551,1578,1640,1689,1724,1750,1793,1868,2143,2241,2358
%N Numbers n such that (n^611)/(n1) is prime.
%H Vincenzo Librandi, <a href="/A217082/b217082.txt">Table of n, a(n) for n = 1..1000</a>
%t Select[Range[2, 2400], PrimeQ[(#^61  1)/(#  1)] &] (* _T. D. Noe_, Sep 26 2012 *)
%o (MAGMA) [n: n in [2..2400] IsPrime((n^61  1) div (n  1))]; // _Vincenzo Librandi_, Sep 28 2012
%o (PARI) is(n)=isprime((n^611)/(n1)) \\ _Charles R Greathouse IV_, Feb 17 2017
%Y Cf. A002384, A049409, A100330, A162862, A217070A217089.
%K nonn,easy
%O 1,1
%A _Tim Johannes Ohrtmann_, Sep 26 2012
%E More terms from _T. D. Noe_, Sep 26 2012
