OFFSET
1,1
LINKS
Harvey P. Dale, Table of n, a(n) for n = 1..1000
EXAMPLE
For p=11, (11^2-2)/7=17. For p=17,(17^2-2)/7=41. For p=31,(31^2-2)/7=137.
MATHEMATICA
Select[Prime[Range[500]], PrimeQ[(#^2-2)/7]&] (* Harvey P. Dale, Jan 06 2013 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
Vincenzo Librandi, Sep 24 2009
EXTENSIONS
More terms from R. J. Mathar and Charles R Greathouse IV, Oct 12 2009
STATUS
approved