login
The OEIS is supported by
the many generous donors to the OEIS Foundation
.
Hints
(Greetings from
The On-Line Encyclopedia of Integer Sequences
!)
A086218
Primes p such that 3^p - 2 is prime.
2
2, 5, 37, 41, 317, 541, 2521
(
list
;
graph
;
refs
;
listen
;
history
;
text
;
internal format
)
OFFSET
1,1
LINKS
Table of n, a(n) for n=1..7.
MATHEMATICA
f[n_]:=3^n-2; lst={}; Do[p=Prime[n]; If[PrimeQ[f[p]], Print[p]; AppendTo[lst, p]], {n, 7!}]; lst (*
Vladimir Joseph Stephan Orlovsky
, Jul 17 2009 *)
CROSSREFS
Subsequence of prime terms of
A014224
.
Cf.
A086214
.
Sequence in context:
A284605
A106129
A163499
*
A202637
A138658
A067464
Adjacent sequences:
A086215
A086216
A086217
*
A086219
A086220
A086221
KEYWORD
nonn
,
hard
,
more
AUTHOR
Cino Hilliard
, Aug 28 2003
EXTENSIONS
a(7) from
Jorge Coveiro
, Apr 10 2004
STATUS
approved
Lookup
|
Welcome
|
Wiki
|
Register
|
Music
|
Plot 2
|
Demos
|
Index
|
Browse
|
More
|
WebCam
Contribute new seq. or comment
|
Format
|
Style Sheet
|
Transforms
|
Superseeker
|
Recents
The OEIS Community
| Maintained by
The OEIS Foundation Inc.
License Agreements, Terms of Use, Privacy Policy.
.
Last modified May 5 23:49 EDT 2024. Contains 372290 sequences. (Running on oeis4.)