A023210 Primes p such that 3*p + 8 is also prime.

3, 5, 7, 11, 13, 17, 31, 41, 43, 47, 53, 61, 73, 83, 101, 103, 113, 127, 131, 137, 151, 157, 167, 193, 197, 211, 223, 251, 263, 271, 277, 283, 293, 307, 311, 313, 337, 347, 367, 431, 433, 467, 491, 521, 563, 571, 593, 601, 613, 631, 641, 647, 673, 677, 691, 701, 733, 743

Offset: 1

Author

David W. Wilson

Keywords

• nonn
• easy

Links

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

Programs

Magma

[n: n in [0..1000] | IsPrime(n) and IsPrime(3*n+8)]; // Vincenzo Librandi, Nov 20 2010

Mathematica

Select[Prime@Range@500, PrimeQ[3 # + 8] &] (* Vincenzo Librandi, May 19 2014 *)