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A156004 Primes p such that 8*p+21 is prime. 6
2, 5, 11, 17, 19, 31, 37, 41, 47, 61, 67, 79, 89, 97, 101, 107, 131, 137, 149, 151, 157, 179, 191, 197, 199, 211, 239, 241, 251, 277, 281, 307, 317, 347, 367, 401, 419, 421, 431, 439, 449, 457, 461, 479, 487, 499, 509, 541, 547, 577, 599, 607, 617, 619, 647 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

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

MATHEMATICA

Select[Prime[Range[1000]], PrimeQ[8 # + 21] &] (* Vincenzo Librandi, Oct 14 2012 *)

PROG

(MAGMA) [p: p in PrimesUpTo(700)|IsPrime(8*p+21)]; // Vincenzo Librandi, Oct 14 2012

CROSSREFS

Sequence in context: A063535 A091653 A088348 * A174194 A174237 A136244

Adjacent sequences:  A156001 A156002 A156003 * A156005 A156006 A156007

KEYWORD

nonn,easy

AUTHOR

Vincenzo Librandi, Feb 01 2009

STATUS

approved

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Last modified July 19 22:14 EDT 2019. Contains 325168 sequences. (Running on oeis4.)