OFFSET
1,1
COMMENTS
Primes p such that 2*p+3, 4*p+9, 8*p+21 and 16*p+45 are also primes. - Vincenzo Librandi, Aug 04 2010
LINKS
Harvey P. Dale, Table of n, a(n) for n = 1..1000
MATHEMATICA
Select[Prime[Range[20000]], And@@PrimeQ[NestList[2#+3&, #, 4]]&] (* Harvey P. Dale, Aug 12 2012 *)
PROG
(Magma) [ p: p in PrimesUpTo(300000) | IsPrime(p) and IsPrime(2*p+3) and IsPrime(4*p+9) and IsPrime(8*p+21) and IsPrime(16*p+45)] // Vincenzo Librandi, Aug 04 2010
CROSSREFS
KEYWORD
nonn
AUTHOR
STATUS
approved