A075979 Numbers k such that k^5 + 2^k is prime.

1, 3, 9, 57, 101, 137, 701, 1079, 1241, 2439, 4119, 7911, 9111, 62979, 74937, 102897

Offset

1,2

Links

Table of n, a(n) for n=1..16.

Mathematica

Select[Range[10000], PrimeQ[#^5 + 2^#] &] (* Vincenzo Librandi, Oct 04 2012 *)

Prog

(PARI) for(n=1, 2500, if(isprime(n^5+2^n), print1(n", ")))

Crossrefs

Sequence in context: A175117 A245117 A183303 * A128681 A292333 A294785

Adjacent sequences: A075976 A075977 A075978 * A075980 A075981 A075982

Keyword

nonn,more

Author

Zak Seidov, Oct 17 2002

Extensions

More terms from Ralf Stephan, Mar 24 2003

a(11)-a(13) from Vincenzo Librandi, Oct 04 2012

a(14)-a(16) from Michael S. Branicky, Jul 13 2023

Status

approved