login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 59th year, we have over 358,000 sequences, and we’ve crossed 10,300 citations (which often say “discovered thanks to the OEIS”).

Other ways to Give
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A086476 Primes p such that 32p+1 and (p-1)/32 are both prime. 3
1889, 8609, 11489, 25889, 32609, 46049, 67169, 98849, 99809, 107873, 120929, 124193, 128033, 139169, 142433, 157793, 167393, 168353, 196193, 208673, 210209, 241313, 288929, 295073, 308129, 311009, 324449, 354209, 377633, 396833, 403553 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..31.

EXAMPLE

1889 is a member as (1889-1)/32 = 59 and 32*1889 + 1= 60449 are both prime.

MATHEMATICA

Prime[ Select[ Range[37063], PrimeQ[(Prime[ # ] - 1)/2^5] && PrimeQ[2^5Prime[ # ] + 1] & ]]

Select[Prime[Range[35000]], And@@PrimeQ[{32#+1, (#-1)/32}]&] (* Harvey P. Dale, Jan 23 2013 *)

CROSSREFS

Cf. A085957, A085958, A086477, A086478.

Sequence in context: A206746 A106764 A157486 * A279621 A168226 A151721

Adjacent sequences: A086473 A086474 A086475 * A086477 A086478 A086479

KEYWORD

nonn

AUTHOR

Amarnath Murthy and Jason Earls, Jul 22 2003

EXTENSIONS

Edited and extended by Robert G. Wilson v, Jul 26 2003

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 December 4 11:24 EST 2022. Contains 358556 sequences. (Running on oeis4.)