A171517 Primes p such that 2*p+11 is prime.

3, 13, 31, 43, 73, 109, 151, 163, 181, 193, 199, 211, 223, 283, 331, 349, 373, 379, 409, 421, 433, 463, 499, 541, 571, 601, 613, 619, 643, 709, 739, 769, 823, 829, 883, 991, 1009, 1021, 1039, 1051, 1063, 1129, 1213, 1231, 1291, 1303, 1423, 1453, 1471, 1549

Offset: 1

Author

Vladimir Joseph Stephan Orlovsky, Dec 10 2009

Keywords

• nonn
• easy

Examples

			2*3+11=17, which is prime.
		

Links

• Vincenzo Librandi, Table of n, a(n) for n = 1..1000

Crossrefs

Cf. A000040, A005382, A005384, A023204 - A023207, A063908 - A063912.

Programs

Magma

[p: p in PrimesUpTo(1600) | IsPrime(2*p+11)]; // Vincenzo Librandi, Apr 27 2014

Mathematica

Select[Prime[Range[6! ]],PrimeQ[2*#+11]&]