%I
%S 9,15,21,44,58,64,96,108,138,160,222,534,2060,2446
%N Numbers n such that 6*10^n11 is prime.
%C Some of the larger entries may only correspond to probable primes.
%C Numbers corresponding to terms <= 534 are certified primes.  Klaus Brockhaus, Feb 16 2005
%o (PARI) is(n)=ispseudoprime(6*10^n11) \\ _Charles R Greathouse IV_, Jun 13 2017
%K nonn
%O 1,1
%A Tom Mueller (muel4503(AT)unitrier.de), Feb 08 2005
%E a(12) to a(14) from _Klaus Brockhaus_, Feb 16 2005
