A105691 Primes p such that both 2p + 3 and 4p + 5 are primes.

2, 17, 47, 113, 167, 467, 503, 617, 647, 827, 1013, 1109, 1277, 1307, 1553, 1583, 1847, 2087, 2129, 2309, 2399, 2777, 2789, 3137, 3209, 3767, 3779, 4007, 4157, 4229, 4259, 4523, 4637, 5087, 5297, 5393, 5417, 6257, 6287, 6389, 6719, 6737, 6833, 6863

Offset

1,1

Comments

Primes from A105610.

Links

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

Mathematica

Select[Prime@ Range[900], AllTrue[{2 # + 3, 4 # + 5}, PrimeQ] &] (* Michael De Vlieger, Jan 22 2018 *)

Prog

(Magma) [p: p in PrimesUpTo(7000) |IsPrime(4*p+5) and IsPrime(2*p+3)] // Vincenzo Librandi, Nov 13 2010

Crossrefs

Cf. A005382, A005383, A105610.

Sequence in context: A023256 A073775 A141860 * A360416 A192345 A212836

Adjacent sequences: A105688 A105689 A105690 * A105692 A105693 A105694

Keyword

nonn

Author

Zak Seidov, Apr 17 2005

Status

approved