A075981 Numbers n such that |2^n - n^5| is prime.

9, 19, 21, 39, 51, 93, 153, 339, 367, 541, 2739, 2967, 11421, 13813, 22281, 42079, 61269, 106951

Offset

1,1

Comments

Probable primes created by larger terms. - Hans Havermann, Aug 15 2014

Links

Table of n, a(n) for n=1..18.

Prog

(PARI) is(n)=ispseudoprime(abs(5^n-2^n)) \\ Charles R Greathouse IV, Jun 12 2017

Crossrefs

Cf. A075980.

Sequence in context: A244538 A242332 A357773 * A079368 A167529 A357184

Adjacent sequences: A075978 A075979 A075980 * A075982 A075983 A075984

Keyword

nonn

Author

Zak Seidov, Oct 17 2002

Extensions

a(6)-a(12) from Charles R Greathouse IV, Mar 26 2010

a(13)-a(18) from Hans Havermann, Aug 15 2014

Status

approved