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A035793 Start of a string of exactly 5 consecutive (but disjoint) pairs of twin primes. 11

%I #33 Jun 24 2022 05:34:01

%S 909287,2596619,9617981,12628337,18873497,21579629,25739771,34140077,

%T 39433367,62832101,67369397,84733211,90122507,102243017,132826607,

%U 140456711,142749149,180929687,201057539,212461979,219970547,228001649

%N Start of a string of exactly 5 consecutive (but disjoint) pairs of twin primes.

%H Vasily Danilov, <a href="/A035793/b035793.txt">Table of n, a(n) for n = 1..10000</a> (terms a(23)-a(500) from _Sebastian Petzelberger).

%H Randall Rathbun, <a href="https://listserv.nodak.edu/cgi-bin/wa.exe?A2=NMBRTHRY;6a849ab3.9811">A study of n-twin_prime clusters among prime numbers</a>, Posting to Number Theory List, Nov 19 1998.

%t 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 *)

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

%K nonn

%O 1,1

%A _Randall L Rathbun_

%E a(11)-a(22) from _Hugo Pfoertner_, Sep 16 2003

%E Offset corrected by _Arkadiusz Wesolowski_, May 06 2012

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Last modified March 28 12:59 EDT 2024. Contains 371254 sequences. (Running on oeis4.)