OFFSET
1,3
COMMENTS
a(29) > 10^5. - Robert Price, Jan 24 2014
MATHEMATICA
Select[Range[0, 3000], PrimeQ[7^# + 10] &]
PROG
(PARI) for(n=1, 3*10^3, if(isprime(7^n+10), print1(n", ")))
CROSSREFS
KEYWORD
nonn
AUTHOR
Vincenzo Librandi, Oct 01 2012
EXTENSIONS
a(23)-a(28) from Robert Price, Jan 24 2014
STATUS
approved