A062578 Numbers k such that 12^k - 11^k is prime.

2, 3, 7, 89, 101, 293, 4463, 70067

Offset: 1

Author

Mike Oakes, May 18 2001, May 19 2001

Keywords

• nonn
• hard

Comments

Terms greater than 1000 may correspond to unproven strong pseudoprimes.

Crossrefs

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

Programs

PARI

is(n)=ispseudoprime(12^n-11^n) \\ Charles R Greathouse IV, May 22 2017

Extensions

New term 70067 (found in 2006) from Jean-Louis Charton, Sep 02 2009

Edited by M. F. Hasler, Sep 16 2013