OFFSET
1,1
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 1..1000
EXAMPLE
For p=2, 2*2^4+-9=(23,41); p=17, 2*17^4+-9=(167033,167051).
MATHEMATICA
Select[Prime[Range[4000]], And@@PrimeQ[2 #^4 + {9, -9}]&] (* Vincenzo Librandi, Apr 10 2013 *)
PROG
(Magma) [p: p in PrimesUpTo(100000) | IsPrime(2*p^4-9) and IsPrime(2*p^4+9)];
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Vincenzo Librandi, Mar 17 2010
STATUS
approved