login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A161616 Primes p such that 2*p+111546435 is also prime. 1
29, 41, 53, 71, 79, 97, 103, 113, 127, 131, 137, 139, 151, 163, 179, 197, 199, 223, 227, 257, 271, 277, 283, 311, 313, 331, 337, 349, 353, 383, 389, 401, 419, 431, 443, 461, 503, 521, 563, 619, 643, 653, 673, 683, 769, 809, 827, 883, 887, 911, 919, 929, 947 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

3*5*7*11*13*17*19*23 = 111546435 = A046326(2) = A147581(1).

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 1..1000

MATHEMATICA

a=3*5*7*11*13*17*19*23; c=0; lst={}; Do[p=Prime[n]; If[PrimeQ[2*p+a], AppendTo[lst, p], c++ ], {n, 6!}]; lst

Select[Prime[Range[200]], PrimeQ[2 # + 111546435]&] (* Vincenzo Librandi, Apr 15 2013 *)

PROG

(MAGMA) [p: p in PrimesUpTo(1000) | IsPrime(2*p + 111546435)]; // Vincenzo Librandi, Apr 15 2013

CROSSREFS

Sequence in context: A330653 A125516 A068480 * A069454 A035789 A343478

Adjacent sequences:  A161613 A161614 A161615 * A161617 A161618 A161619

KEYWORD

nonn,less

AUTHOR

Vladimir Joseph Stephan Orlovsky, Jun 14 2009

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 July 26 22:49 EDT 2021. Contains 346300 sequences. (Running on oeis4.)