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A242918 Positions of smaller of twin primes in A001359 with index 5. 2

%I #10 Jun 05 2014 01:47:21

%S 11,18,21,27,43,48,62,77,107,109,110,118,131,145,172,201,216,258,260,

%T 265,289,294,301,307,315,319,340,350,363,365,367,381,442,449,451,453,

%U 491,496,500,515,522,528,540,559,569,581,603,613,616,620,623,630,659,689

%N Positions of smaller of twin primes in A001359 with index 5.

%C For the definition of the index of a twin prime pair, see the comment in A242767.

%H Peter J. C. Moses, <a href="/A242918/b242918.txt">Table of n, a(n) for n = 1..5000</a>

%t A242767=Join[{1},Differences[Flatten[Position[Differences[Prime[Range[10^4]]],2]]]];

%t A242918=Flatten[Position[A242767,5]] (* _Peter J. C. Moses_, May 27 2014 *)

%Y Cf. A001359, A242758, A242767, A242768, A242807, A242881, A242913, A242917.

%K nonn

%O 1,1

%A _Vladimir Shevelev_, May 26 2014

%E More terms from _Peter J. C. Moses_, May 26 2014

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Last modified April 19 21:09 EDT 2024. Contains 371798 sequences. (Running on oeis4.)