OFFSET
1,1
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 1..1000
MATHEMATICA
Select[Range[350], PrimeQ[2#^4-1]&] (* Harvey P. Dale, Sep 12 2011 *)
PROG
(Magma) [n: n in [1..1000]| IsPrime(2*n^4-1)]
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Vincenzo Librandi, Dec 02 2010
STATUS
approved