A161616 Primes p such that 2*p+111546435 is also prime.

29, 41, 53, 71, 79, 97, 103, 113, 127, 131, 137, 139, 151, 163, 179, 197, 199, 223, 227, 257, 271, 277, 283, 311, 313, 331, 337, 349, 353, 383, 389, 401, 419, 431, 443, 461, 503, 521, 563, 619, 643, 653, 673, 683, 769, 809, 827, 883, 887, 911, 919, 929, 947

Offset: 1

Author

Vladimir Joseph Stephan Orlovsky, Jun 14 2009

Keywords

• nonn
• less

Comments

3*5*7*11*13*17*19*23 = 111546435 = A046326(2) = A147581(1).

Links

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

Programs

Magma

[p: p in PrimesUpTo(1000) | IsPrime(2*p + 111546435)]; // Vincenzo Librandi, Apr 15 2013

Mathematica

a=3*5*7*11*13*17*19*23;c=0;lst={};Do[p=Prime[n];If[PrimeQ[2*p+a],AppendTo[lst,p],c++ ],{n,6!}];lst
Select[Prime[Range[200]], PrimeQ[2 # + 111546435]&] (* Vincenzo Librandi, Apr 15 2013 *)