%I #2 Mar 31 2012 14:45:48

%S 2,37,3121,10429,10282339,9835884797,101740496633

%N a(n) is the smallest prime p such that all the n numbers reversal(p^k), k<n+1 are primes.

%C By an interesting approach I was able to find a(7). [From _Farideh Firoozbakht_, Sep 30 2009]

%e Both numbers reversal(37)=73 & reversal(37^2)=9631 are primes and 37 is the

%e smallest prime number with this property so a(2)=37.

%Y Cf. A118212, A118213, A165696, A165698.

%K base,hard,more,nonn

%O 1,1

%A _Farideh Firoozbakht_, Sep 29 2009

%E a(7) from _Farideh Firoozbakht_, Sep 30 2009