A123981 - OEIS

%I #12 Mar 27 2020 09:01:09

%S 1,3,8,38,53,68,71,73,106,108,123,166,173,186,221,288,326,333,376,386,

%T 456,458,516,656,711,738,788,871,981,1076,1083,1146,1156,1158,1173,

%U 1193,1303,1338,1503,1618,1706,1741,1751,1776,1781,1796,1856,1886,1921,1963

%N Numbers k for which 12*k+5, 12*k+7 and 12*k+11 are primes.

%H Amiram Eldar, <a href="/A123981/b123981.txt">Table of n, a(n) for n = 1..10000</a>

%t Select[Range[2000], And @@ PrimeQ /@ ({5, 7, 11} + 12#) &] (* _Ray Chandler_, Nov 05 2006 *)

%K nonn

%O 1,2

%A _Artur Jasinski_, Oct 30 2006

%E Extended by _Ray Chandler_, Nov 05 2006