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

 

Logo

Annual Appeal: Please make a donation (tax deductible in USA) to keep the OEIS running. Over 5000 articles have referenced us, often saying "we discovered this result with the help of the OEIS".

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A102874 Primes of the form 3^n+14. 2
17, 23, 41, 257, 743, 19697, 59063, 847288609457, 57264168970223481226273458862846808078011946903, 16173092699229880893718618465586445357583280647840659957623 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

The sequence of corresponding n starts 1, 2, 3, 5, 6, 9, 10, 25, 98, 122, 153, 190, 258, 511, 549, ... (complete up to 10^3). [Joerg Arndt, Jul 19 2012]

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 1..18

MATHEMATICA

Select[Table[3^n+14, {n, 0, 200}], PrimeQ] (* Vincenzo Librandi, Jul 19 2012 *)

PROG

(MAGMA) [ a: n in [0..200] | IsPrime(a) where a is 3^n+14 ]; // Vincenzo Librandi, Jul 19 2012

CROSSREFS

Sequence in context: A256397 A139843 A151953 * A086532 A159044 A267984

Adjacent sequences:  A102871 A102872 A102873 * A102875 A102876 A102877

KEYWORD

nonn

AUTHOR

Roger L. Bagula, Mar 01 2005

EXTENSIONS

Edited by N. J. A. Sloane at the suggestion of Andrew Plewe, May 16 2007

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 | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy .

Last modified December 10 07:27 EST 2016. Contains 278993 sequences.