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A075981 Numbers n such that |2^n - n^5| is prime. 1
9, 19, 21, 39, 51, 93, 153, 339, 367, 541, 2739, 2967, 11421, 13813, 22281, 42079, 61269, 106951 (list; graph; refs; listen; history; text; internal format)
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: A157140 A244538 A242332 * A079368 A167529 A228610

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

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Last modified July 6 21:36 EDT 2020. Contains 335483 sequences. (Running on oeis4.)