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A136145 First of eight consecutive primes that are four sets of twin primes. 1
9419, 62969, 72221, 392261, 495569, 663569, 909287, 909299, 1006301, 1138367, 1159187, 1173539, 1322147, 2144477, 2168651, 2502341, 2596619, 2596637, 2668217, 3020999, 3215711, 3664679, 4890857, 5248079, 5261699, 5532269 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Could be called unrestricted prime octets.

LINKS

Harvey P. Dale, Table of n, a(n) for n = 1..200

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]; If[p1-p0==p3-p2==p5-p4==p7-p6==2, AppendTo[lst, p0]], {n, 3*9!}]; lst (* Vladimir Joseph Stephan Orlovsky, Apr 02 2010 *)

Transpose[Select[Partition[Prime[Range[400000]], 8, 1], Union[ Differences/@ Partition[ #, 2]]=={{2}}&]][[1]] (* Harvey P. Dale, Nov 13 2015 *)

CROSSREFS

Sequence in context: A235677 A235447 A068220 * A035792 A252704 A202099

Adjacent sequences:  A136142 A136143 A136144 * A136146 A136147 A136148

KEYWORD

nonn

AUTHOR

Harry J. Smith, Dec 16 2007

STATUS

approved

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Last modified June 17 05:50 EDT 2021. Contains 345080 sequences. (Running on oeis4.)