OFFSET
1,1
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 1..1000
MATHEMATICA
Select[Range[1000], PrimeQ[ # Prime[ # ]+2]&]
PROG
(Magma) [n: n in [1..800] | IsPrime(n*NthPrime(n) + 2)]; // Vincenzo Librandi, Oct 05 2012
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
Zak Seidov, Jul 11 2003
STATUS
approved