A062583 Numbers k such that 17^k - 16^k is prime.

5, 7, 79, 523, 571, 2837

Offset: 1

Author

Mike Oakes, May 18 2001

Keywords

• nonn
• hard

Comments

Terms greater than 1000 may only be strong pseudoprimes. [Clarified by M. F. Hasler, Sep 16 2013]

No other terms less than 100000. - Robert Price, Mar 22 2012

Crossrefs

Cf. A000043, A057468, A059801-A059803, A062572-A062582, A188051, A062585-A062666.

Programs

PARI

is(n)=ispseudoprime(17^n-16^n) \\ Charles R Greathouse IV, May 22 2017