A089160 Numbers k such that 30*k + 11 and 30*k + 13 are twin primes.

0, 1, 2, 3, 6, 9, 10, 14, 15, 17, 21, 27, 29, 34, 35, 36, 38, 43, 48, 49, 57, 62, 64, 69, 70, 71, 79, 86, 90, 93, 108, 112, 115, 119, 122, 127, 128, 133, 136, 141, 142, 147, 149, 157, 164, 167, 174, 181, 183, 188, 191, 204, 218, 223, 225, 226, 240, 244, 274, 276, 295

Offset

1,3

Links

Amiram Eldar, Table of n, a(n) for n = 1..10000

Example

30*3 + 11 = 101, 30*3 + 13 = 103; 101 and 103 are twin primes.

Mathematica

Select[Range[0, 300], And@@PrimeQ[{30#+11, 30#+13}]&] (* Harvey P. Dale, Aug 15 2011 *)

Prog

(Magma) [n: n in [0..10000]|IsPrime(30*n+11)and IsPrime(30*n+13)] // Vincenzo Librandi, Nov 16 2010

Crossrefs

Cf. A001097, A001359, A006512.

Sequence in context: A188399 A047284 A268692 * A214974 A286434 A288930

Adjacent sequences: A089157 A089158 A089159 * A089161 A089162 A089163

Keyword

easy,nonn

Author

Pierre CAMI, Dec 06 2003

Status

approved