A227172 Numbers n such that (48^n + 47^n)/95 is prime.

13, 31, 631, 5279

Offset

1,1

Comments

All terms are prime.

a(5) > 10^4.

Links

Table of n, a(n) for n=1..4.

Prog

(PARI) is(n)=ispseudoprime((48^n+47^n)/95) \\ Charles R Greathouse IV, Jun 13 2017

Crossrefs

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

Sequence in context: A023304 A247837 A346022 * A180757 A214488 A247836

Adjacent sequences: A227169 A227170 A227171 * A227173 A227174 A227175

Keyword

hard,nonn,more

Author

Jean-Louis Charton, Jul 03 2013

Status

approved