login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A227172 Numbers n such that (48^n + 47^n)/95 is prime. 1

%I #10 Feb 02 2023 04:20:11

%S 13,31,631,5279

%N Numbers n such that (48^n + 47^n)/95 is prime.

%C All terms are prime.

%C a(5) > 10^4.

%o (PARI) is(n)=ispseudoprime((48^n+47^n)/95) \\ _Charles R Greathouse IV_, Jun 13 2017

%Y Cf. A000978, A057469, A128066, A128335, A128336, A187805, A181141, A187819, A217095.

%K hard,nonn,more

%O 1,1

%A _Jean-Louis Charton_, Jul 03 2013

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 23 20:33 EDT 2024. Contains 371916 sequences. (Running on oeis4.)