A247273 Primes p such that p + m^2 is prime for all m in {2,4,6,8,10,12,14,16,18,20,22}.

163, 409333, 9671300983, 186521536807, 376040154163, 459775038913, 485142116713, 773464440907, 916792710667, 982557050143, 1087801149583, 1213507492723, 1822896797857, 2131006835017, 3026318319523, 4617478214407, 5141744558017, 6552892412047, 6629618954863, 6787014897877, 7636453217677, 7788411508483, 8311114648153, 8547311473387, 8668135024957, 9206471763547

Offset: 1

Author

Zak Seidov, Sep 11 2014

Keywords

• nonn

Comments

All terms are == {7, 13} mod 30.

Subsequence of A145741.

Links

• Zak Seidov, Table of n, a(n) for n = 1..41

Crossrefs

Cf. A049492, A092120, A246842, A247269, A145741.

Programs

PARI

forprime(p=1,10^12,c=0;for(i=1,11,if(ispseudoprime(p+(2*i)^2),c++));if(c==11,print1(p,", "))) \\ Derek Orr, Sep 11 2014