A154620 Primes p such that 31p+14 is prime.

3, 17, 23, 47, 53, 107, 113, 137, 179, 197, 233, 263, 269, 347, 353, 383, 389, 419, 449, 503, 563, 587, 593, 599, 617, 647, 659, 677, 683, 719, 773, 929, 1049, 1163, 1193, 1229, 1259, 1307, 1319, 1367, 1373, 1439, 1553, 1607, 1667, 1787, 1823, 1847, 1889

Offset

1,1

Links

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

Example

For p=3, 31p+14=107; p=449, 31p+14=13933

Mathematica

Select[Prime[Range[9000]], PrimeQ[31#+14]&] (* Vincenzo Librandi, Jul 31 2012 *)

Prog

(Magma) [p: p in PrimesUpTo(2000)|IsPrime(31*p+14)]; // Vincenzo Librandi, Jul 31 2012

Crossrefs

Cf. A142018.

Sequence in context: A351688 A206626 A128107 * A175385 A174268 A273834

Adjacent sequences: A154617 A154618 A154619 * A154621 A154622 A154623

Keyword

nonn,easy

Author

Vincenzo Librandi, Jan 17 2009

Status

approved