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A173879 Primes p such that 3*p+4, 5*p+6 and 7*p+8 are also prime. 1
5, 53, 389, 509, 593, 599, 839, 2879, 2963, 4013, 4799, 5273, 6473, 6719, 6869, 7499, 8243, 10589, 11003, 11069, 15959, 17483, 20123, 21383, 25073, 25583, 27059, 28319, 32213, 34019, 34253, 34913, 37013, 38453, 38609, 38933, 41039, 42569, 43283 (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[5000]], PrimeQ[3 # + 4] && PrimeQ[5 # + 6] && PrimeQ[7 # + 8]&] (* Vincenzo Librandi, Apr 10 2013 *)

PROG

(MAGMA) [p: p in PrimesUpTo(100000) | IsPrime(p) and IsPrime(3*p+4) and IsPrime(5*p+6) and IsPrime(7*p+8)];

CROSSREFS

Sequence in context: A068170 A069632 A069617 * A058390 A221236 A198963

Adjacent sequences:  A173876 A173877 A173878 * A173880 A173881 A173882

KEYWORD

nonn,easy

AUTHOR

Vincenzo Librandi, Mar 07 2010

STATUS

approved

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Last modified July 8 08:08 EDT 2020. Contains 335520 sequences. (Running on oeis4.)