A062580 Numbers k such that 14^k - 13^k is prime.

3, 11, 83, 461, 659, 1129, 3797, 83869

Offset

1,1

Comments

Terms greater than 1000 may correspond to (unproven) strong pseudoprimes.

Links

Table of n, a(n) for n=1..8.

Prog

(PARI) is(n)=ispseudoprime(14^n-13^n) \\ Charles R Greathouse IV, Jun 13 2017

Crossrefs

Cf. A000043, A057468, A059801, A059802, A062572-A062666.

Sequence in context: A129114 A136649 A342058 * A335968 A097495 A228034

Adjacent sequences: A062577 A062578 A062579 * A062581 A062582 A062583

Keyword

nonn,hard,more

Author

Mike Oakes, May 18 2001, May 19 2001

Extensions

83869 found from Jean-Louis Charton, Sep 02 2009

Edited by M. F. Hasler, Sep 16 2013

Status

approved