A155188 Sophie Germain primes that are also strong primes and lesser of twin prime pairs.

11, 29, 41, 179, 191, 239, 281, 419, 431, 641, 659, 809, 1019, 1031, 1049, 1229, 1289, 1451, 1481, 1931, 2129, 2141, 2339, 2549, 2969, 3299, 3329, 3359, 3389, 3539, 3821, 3851, 4019, 4271, 4481, 5231, 5279, 5441, 5501, 5639, 5741, 5849, 6131, 6269, 6449

Offset: 1

Author

Vladimir Joseph Stephan Orlovsky, Jan 21 2009

Keywords

• nonn

Links

• Amiram Eldar, Table of n, a(n) for n = 1..10000

Crossrefs

Cf. A045536, A005384, A051634, A006562, A051635.

Programs

Mathematica

lst={};Do[p0=Prime[n];p1=Prime[n+1];p2=Prime[n+2];If[p1>(p0+p2)/2,If[PrimeQ[p1*2+1],If[PrimeQ[p1+2],AppendTo[lst,p1]]]],{n,7!}];lst