OFFSET
1,1
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 1..1000
MATHEMATICA
Select[Prime[Range[1600]], PrimeQ[(#^3 + 2*#^2 + # + 1)]&] (* Vincenzo Librandi, Oct 30 2012 *)
PROG
(Magma) [p: p in PrimesUpTo(1600)| IsPrime(p^3 + 2*p^2 + p + 1)]; // Vincenzo Librandi, Oct 30 2012
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Vincenzo Librandi, Jan 19 2009
STATUS
approved