A062599 Numbers k such that 33^k - 32^k is prime.

3, 7, 547, 5419, 16301, 36433

Offset

1,1

Comments

Terms greater than 1000 are often only strong pseudoprimes.

No other terms less than 100000. - Robert Price, Apr 03 2012

All terms are prime. - Robert Price, Apr 03 2012

Links

Table of n, a(n) for n=1..6.

Mathematica

Select[Range[100000], PrimeQ[33^# - 32^#] &]

Prog

(PARI) is(n)=ispseudoprime(33^n-32^n) \\ Charles R Greathouse IV, Jun 13 2017

Crossrefs

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

Sequence in context: A199365 A153217 A120905 * A101246 A056801 A302987

Adjacent sequences: A062596 A062597 A062598 * A062600 A062601 A062602

Keyword

nonn,hard

Author

Mike Oakes, May 18 2001, May 19 2001

Extensions

a(5)-a(6) from Robert Price with assistance from Adam Marciniec, Apr 03 2012

Status

approved