A124520 - OEIS

%I #15 Dec 17 2019 07:39:24

%S 3,30,33,63,75,78,93,102,123,138,153,162,165,192,195,240,252,273,297,

%T 303,342,387,393,420,435,438,450,468,483,522,525,540,588,630,633,660,

%U 663,717,738,747,750,765,798,825,837,855,957,978,993,1023,1032,1062

%N Numbers k such that 14*k - 1 and 14*k + 1 are twin primes.

%H Amiram Eldar, <a href="/A124520/b124520.txt">Table of n, a(n) for n = 1..10000</a>

%e 3 is in the sequence since 14*3 - 1 = 41 and 14*3 + 1 = 43 are twin primes.

%t Select[Range[1100], And @@ PrimeQ[{-1, 1} + 14# ] &] (* _Ray Chandler_, Nov 16 2006 *)

%Y Cf. A040040, A045753, A002822, A124065, A124518, A124519, A124521, A124522, A063983.

%K nonn

%O 1,1

%A _Artur Jasinski_, Nov 04 2006

%E Extended by _Ray Chandler_, Nov 16 2006