A105961 Primes p such that 20*p + 3 is prime.

2, 5, 11, 13, 19, 23, 37, 41, 43, 53, 61, 71, 79, 83, 89, 103, 107, 127, 151, 167, 173, 179, 181, 191, 193, 197, 223, 229, 233, 239, 251, 281, 307, 313, 317, 349, 379, 421, 431, 433, 439, 443, 467, 487, 523, 569, 571, 587, 593, 607, 613, 617, 641, 653, 659

Offset: 1

Author

Zak Seidov, May 05 2005

Keywords

• nonn

Links

• Michael De Vlieger, Table of n, a(n) for n = 1..10000

Crossrefs

Cf. A023238.

Programs

Magma

[p: p in PrimesUpTo(5000)|IsPrime(20*p+3)] // Vincenzo Librandi, Jan 30 2011

Mathematica

Select[Prime[Range[120]], PrimeQ[20#+3]&]