login
A075979
Numbers k such that k^5 + 2^k is prime.
0
1, 3, 9, 57, 101, 137, 701, 1079, 1241, 2439, 4119, 7911, 9111, 62979, 74937, 102897, 117191, 133583, 152163
OFFSET
1,2
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
KEYWORD
nonn,more,changed
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
a(17)-a(19) from Michael S. Branicky, Oct 23 2024
STATUS
approved