A102739 - OEIS

%I #12 Jul 12 2023 13:33:10

%S 9,15,21,44,58,64,96,108,138,160,222,534,2060,2446,3884,8794,9879,

%T 18303

%N Numbers k such that 6*10^k-11 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^n-11) \\ _Charles R Greathouse IV_, Jun 13 2017

%K nonn,more

%O 1,1

%A Tom Mueller (muel4503(AT)uni-trier.de), Feb 08 2005

%E a(12)-a(14) from _Klaus Brockhaus_, Feb 16 2005

%E a(15)-a(18) from _Michael S. Branicky_, Jul 12 2023