login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A075979 Numbers n such that n^5+2^n is prime. 0
1, 3, 9, 57, 101, 137, 701, 1079, 1241, 2439, 4119, 7911, 9111 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..13.

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

easy,nonn

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

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified July 9 05:50 EDT 2020. Contains 335538 sequences. (Running on oeis4.)