OFFSET
1,1
COMMENTS
Primes p such that 8*p+3, 64*p+27, 512*p+219, 4096*p+1755 and 32768*p+14043 are also primes. - Vincenzo Librandi, Aug 05 2010
LINKS
John Cerkan, Table of n, a(n) for n = 1..10000
FORMULA
a(n) == 31 (mod 70). - John Cerkan, Nov 04 2016
MATHEMATICA
n5Q[n_]:=And@@PrimeQ/@NestList[8#+3&, n, 5]; Select[Prime[Range[ 3000000]], n5Q] (* Harvey P. Dale, Sep 03 2013 *)
PROG
(Magma) [n: n in [1..19000000] | IsPrime(n) and IsPrime(8*n+3) and IsPrime(64*n+27) and IsPrime(512*n+219) and IsPrime(4096*n+1755) and IsPrime(32768*n+14043)] // Vincenzo Librandi, Aug 05 2010
CROSSREFS
KEYWORD
nonn
AUTHOR
STATUS
approved