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Search: id:A129311
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A129311 Numbers n such that 6*p(n)*p(n+1)*p(n+2)*p(n+3)*p(n+4)*p(n+5)-1 and 6*p(n)*p(n+1)*p(n+2)*p(n+3)*p(n+4)*p(n+5)+1 are twin primes with p(n)=n-th prime. +0
3
1, 185, 287, 296, 1372, 1959, 2531, 3630, 5393, 6332, 7210, 7315, 8108, 8258, 8794, 9340, 9989 (list; graph; listen)
OFFSET

1,2

EXAMPLE

6*2*3*5*7*11*13-1=180179 prime

6*2*3*5*7*11*13+1=180181 twin prime of 180179, so n(1)=1

CROSSREFS

Cf. A129310.

Sequence in context: A139265 A157297 A156059 this_sequence A136048 A015273 A124207

Adjacent sequences: A129308 A129309 A129310 this_sequence A129312 A129313 A129314

KEYWORD

nonn

AUTHOR

Pierre CAMI (pierrecami(AT)tele2.fr), Apr 09 2007

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Last modified December 20 16:54 EST 2009. Contains 171081 sequences.


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