A214655 Numbers n such that 25^n - 24^n is prime or a strong pseudoprime.

3, 5, 29, 54799

Offset

1,1

Comments

All terms are prime.

No other terms less than 10^5. - Robert Price, Jul 24 2012

Links

Table of n, a(n) for n=1..4.

Mathematica

Select[Range[10^5], PrimeQ[25^#-24^# ]&]

Crossrefs

Cf. A000043, A057468, A059801, A059802, A059803, A062572-A062589, A214658, A062592-A062666.

Sequence in context: A100856 A100858 A215780 * A341037 A181429 A162262

Adjacent sequences: A214652 A214653 A214654 * A214656 A214657 A214658

Keyword

nonn,hard,bref,more

Author

Robert Price, Jul 24 2012

Extensions

Edited by M. F. Hasler, Sep 21 2013

Status

approved