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%I #11 Jan 26 2020 11:06:55
%S 879,979,5555,10950,11728,14485,14809,21716,22117,22933,23371,24473,
%T 27514,27597,28475,29581,30548,30694,30887,31128,31783,32197,34016,
%U 36539,37491,39277,39430,48555,49347,50596,52602,56284,56473,57482
%N Numbers k such that 6*p(k)*p(k+1)*p(k+2)*p(k+3)*p(k+4)*(k+5)*p(k+6)-1 and 6*p(k)*p(k+1)*p(k+2)*p(k+3)*p(k+4)*(k+5)*p(k+6)+1 are twin primes with p(h) = h-th prime.
%H Amiram Eldar, <a href="/A129313/b129313.txt">Table of n, a(n) for n = 1..10000</a>
%t PrimePi[Part[#, 1, 1] & /@ FactorInteger /@ Select[Times @@@ Partition[Prime[Range[6*10^4]], 7, 1], PrimeQ[6 # + 1] && PrimeQ[6 # - 1] &]] (* _Amiram Eldar_, Jan 26 2020 after _Giovanni Resta_ at A129311 *)
%Y Cf. A129310, A129311.
%K nonn
%O 1,1
%A _Pierre CAMI_, Apr 09 2007