OFFSET
1,1
LINKS
G. C. Greubel, Table of n, a(n) for n = 1..2500
MATHEMATICA
Select[Range[10000], PrimeQ[ #^2+11]&&PrimeQ[ #^2+13]&]
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
Zak Seidov, Jan 13 2006
STATUS
approved