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A154625 Primes p such that 71*p + 34 is also prime. 2
5, 23, 47, 53, 83, 89, 149, 179, 317, 347, 353, 359, 389, 467, 503, 557, 569, 647, 683, 773, 929, 947, 977, 983, 1019, 1103, 1193, 1217, 1229, 1283, 1307, 1319, 1439, 1733, 1847, 1889, 1907, 2069, 2153, 2243, 2309, 2357, 2393, 2399, 2417, 2657, 2687, 2693 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

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

MAPLE

a := proc (n) if isprime(n) = true and isprime(71*n+34) = true then n else end if end proc: seq(a(n), n = 1 .. 3000); # Emeric Deutsch, Jan 26 2009

MATHEMATICA

Select[Prime[Range[500]], PrimeQ[71#+34]&] (* Harvey P. Dale, Jun 04 2011 *)

PROG

(MAGMA) [p: p in PrimesUpTo(2800)| IsPrime(71*p + 34)]; // Vincenzo Librandi, Oct 30 2012

CROSSREFS

Cf. A154624.

Sequence in context: A222088 A146467 A053518 * A107011 A031387 A057622

Adjacent sequences:  A154622 A154623 A154624 * A154626 A154627 A154628

KEYWORD

nonn,easy

AUTHOR

Vincenzo Librandi, Jan 17 2009

EXTENSIONS

Extended by Emeric Deutsch, Jan 26 2009

STATUS

approved

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Last modified March 31 03:48 EDT 2020. Contains 333136 sequences. (Running on oeis4.)