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A171688 Twin primes > 3. 2

%I #5 May 01 2013 21:05:53

%S 5,7,11,13,17,19,29,31,41,43,59,61,71,73,101,103,107,109,137,139,149,

%T 151,179,181,191,193,197,199,227,229,239,241,269,271,281,283,311,313,

%U 347,349,419,421,431,433,461,463,521,523,569,571,599,601,617,619,641

%N Twin primes > 3.

%C Twin primes of the form 6n-1 or 6n+1. [From _Juri-Stepan Gerasimov_, May 12 2010]

%F a(n)=A001097(n+1).

%Y Cf. A001097.

%K nonn

%O 1,1

%A _Juri-Stepan Gerasimov_, Dec 15 2009

%E Edited by _N. J. A. Sloane_, Mar 17 2010

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Last modified May 5 05:35 EDT 2024. Contains 372257 sequences. (Running on oeis4.)