login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons 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 56th year, we are closing in on 350,000 sequences, and we’ve crossed 9,700 citations (which often say “discovered thanks to the OEIS”).

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A051649 Primes of the form 2310*p + 1 where p is a prime. 2
4621, 11551, 25411, 43891, 108571, 164011, 168631, 224071, 251791, 261031, 316471, 321091, 348811, 376531, 385771, 459691, 528991, 552091, 607531, 626011, 718411, 723031, 732271, 764611, 801571, 815431, 875491, 995611, 1000231 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Generalization of A005385; can be called 2310-safe primes.

LINKS

Harvey P. Dale, Table of n, a(n) for n = 1..1000

FORMULA

A002110(5)*p + 1 = 2310*p + 1 (prime).

EXAMPLE

11551 is here because 11551 = 2310*p + 1 where p=5.

MATHEMATICA

Select[Table[2310n+1, {n, Prime[Range[100]]}], PrimeQ] (* Harvey P. Dale, Jan 18 2017 *)

CROSSREFS

Cf. A005384, A005385, A007693, A002110.

Sequence in context: A295431 A338337 A237634 * A140175 A116226 A115446

Adjacent sequences:  A051646 A051647 A051648 * A051650 A051651 A051652

KEYWORD

nonn

AUTHOR

Labos Elemer

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 December 8 01:00 EST 2021. Contains 349590 sequences. (Running on oeis4.)