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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A035793 Start of a string of exactly 5 consecutive (but disjoint) pairs of twin primes. 10
909287, 2596619, 9617981, 12628337, 18873497, 21579629, 25739771, 34140077, 39433367, 62832101, 67369397, 84733211, 90122507, 102243017, 132826607, 140456711, 142749149, 180929687, 201057539, 212461979, 219970547, 228001649 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Vasily Danilov, Table of n, a(n) for n = 1..10000

Randall Rathbun, A study of n-twin_prime clusters among prime numbers, Posting to Number Theory List, Nov 19 1998.

MATHEMATICA

lst={}; Do[p0=Prime[n]; p1=Prime[n+1]; p2=Prime[n+2]; p3=Prime[n+3]; p4=Prime[n+4]; p5=Prime[n+5]; p6=Prime[n+6]; p7=Prime[n+7]; p8=Prime[n+8]; p9=Prime[n+9]; If[p1-p0==p3-p2==p5-p4==p7-p6==p9-p8==2, AppendTo[lst, p0]], {n, 10!}]; lst (* Vladimir Joseph Stephan Orlovsky, Apr 02 2010 *)

CROSSREFS

Cf. A001359, A035789, A035790, A035791, A035792, A035793, A035794, A035795, A087641.

Sequence in context: A179735 A015333 A141461 * A102503 A251908 A186608

Adjacent sequences:  A035790 A035791 A035792 * A035794 A035795 A035796

KEYWORD

nonn

AUTHOR

Randall Rathbun

EXTENSIONS

a(11)-a(22) from Hugo Pfoertner, Sep 16 2003

Offset corrected by Arkadiusz Wesolowski, May 06 2012

a(23)-a(500) from Sebastian Petzelberger, May 04 2015

a(501)-a(10000) from Vasily Danilov, Oct 15 2015

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 April 26 12:07 EDT 2019. Contains 322472 sequences. (Running on oeis4.)