OFFSET
1,1
COMMENTS
Primes p such that 2*p+9 and 4*n+27 are also primes. - Vincenzo Librandi, Aug 04 2010
LINKS
John Cerkan, Table of n, a(n) for n = 1..10000
MATHEMATICA
Select[Prime[Range[500]], And@@PrimeQ[Rest[NestList[2#+9&, #, 2]]]&] (* Harvey P. Dale, Mar 23 2011 *)
PROG
(Magma) [n: n in [0..100000] | IsPrime(n) and IsPrime(2*n+9) and IsPrime(4*n+27)] // Vincenzo Librandi, Aug 04 2010
(PARI) isok(n) = isprime(n) && isprime(2*n+9) && isprime(4*n+27); \\ Michel Marcus, Sep 12 2016
CROSSREFS
KEYWORD
nonn
AUTHOR
STATUS
approved