login
This site is supported by donations to The OEIS Foundation.

 

Logo

The submissions stack has been unacceptably high for several months now. Please voluntarily restrict your submissions and please help with the editing. (We don't want to have to impose further limits.)

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A125967 Numbers n for which n^9+n^8-1 is prime. 0
14, 21, 27, 42, 51, 53, 69, 78, 90, 104, 111, 128, 137, 149, 156, 159, 190, 219, 231, 247, 254, 289, 315, 322, 330, 331, 336, 344, 354, 397 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..30.

MATHEMATICA

Do[If[PrimeQ[x^9 + x^8 - 1], Print[x]], {x, 1, 400}]

PROG

(PARI) is(n)=isprime(n^9+n^8-1) \\ Charles R Greathouse IV, May 15 2013

CROSSREFS

Cf. A000040, A045546, A125881-A125885, A125965-A125973.

Sequence in context: A039832 A108633 A110478 * A006625 A114382 A120141

Adjacent sequences:  A125964 A125965 A125966 * A125968 A125969 A125970

KEYWORD

nonn

AUTHOR

Artur Jasinski, Dec 14 2006

STATUS

approved

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

Content is available under The OEIS End-User License Agreement .

Last modified August 27 15:19 EDT 2015. Contains 261092 sequences.