A062601 Numbers k such that 35^k - 34^k is prime.

3, 5, 11, 157, 2557, 13537, 73477, 85243

Offset

1,1

Comments

Terms greater than 1000 are often only strong pseudoprimes.

No other terms less than 100000. - Robert Price, May 21 2012

Links

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

Prog

(PARI) is(n)=ispseudoprime(35^n-34^n) \\ Charles R Greathouse IV, Jun 13 2017

Crossrefs

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

Sequence in context: A083841 A277552 A154941 * A231017 A038198 A280876

Adjacent sequences: A062598 A062599 A062600 * A062602 A062603 A062604

Keyword

nonn,hard

Author

Mike Oakes, May 18 2001, May 19 2001

Extensions

Added a(6)-a(8) (computer runs by Adam Marciniec) from Robert Price, May 21 2012

Status

approved