Search: id:A006512
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%I A006512 M3763
%S A006512 5,7,13,19,31,43,61,73,103,109,139,151,181,193,199,229,241,271,283,313,
%T A006512 349,421,433,463,523,571,601,619,643,661,811,823,829,859,883,1021,1033,
%U A006512 1051,1063,1093,1153,1231,1279,1291,1303,1321,1429,1453,1483,1489,1609
%N A006512 Greater of twin primes.
%C A006512 Also primes that are the sum of two primes. - Cino Hilliard (hillcino368(AT)gmail.com), 
               Jul 02 2004
%C A006512 The set of greater of twin primes larger than five is a proper subset 
               of the set of primes of the form 3n + 1 (A002476). - Paul Muljadi 
               (paulmuljadi(AT)yahoo.com), Jun 05 2008
%C A006512 Smallest prime>nth isolated composite. [From Juri-Stepan Gerasimov (2stepan(AT)rambler.ru), 
               Nov 07 2009]
%D A006512 N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, 
               Academic Press, 1995 (includes this sequence).
%D A006512 See A001359 for references and links.
%D A006512 Harvey Dubner, Twin Prime Statistics, Journal of Integer Sequences, Vol. 
               8 (2005), Article 05.4.2.
%H A006512 T. D. Noe, <a href="b006512.txt">Table of n, a(n) for n=1..10000</a>
%H A006512 <a href="Sindx_Pri.html#gaps">Index entries for primes, gaps between</
               a>
%H A006512 O. E. Pol, <a href="http://www.polprimos.com">Determinacion geometrica 
               de los numeros primos y perfectos</a>.
%p A006512 ZL:=[]:for p from 1 to 1610 do if (isprime(p) and isprime(p+2) ) then 
               ZL:=[op(ZL),(binomial((p+2),p+1))]; fi; od; print(ZL); - Zerinvary 
               Lajos (zerinvarylajos(AT)yahoo.com), Mar 08 2007
%p A006512 for i from 1 to 253 do if ithprime(i+1) = ithprime(i) + 2 then print({ithprime(i+1)}); 
               fi; od; - Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), Mar 19 2007
%t A006512 Select[ Prime[ Range[254]], PrimeQ[ # - 2] &] (from Robert G. Wilson 
               v (rgwv(AT)rgwv.com), Jun 09 2005)
%Y A006512 Cf. A001359, A014574, A067829.
%Y A006512 Bisection of A077800.
%Y A006512 Subsequence of A139690.
%Y A006512 Cf. A002476.
%Y A006512 Sequence in context: A099349 A167464 A106986 this_sequence A074304 A072677 
               A063910
%Y A006512 Adjacent sequences: A006509 A006510 A006511 this_sequence A006513 A006514 
               A006515
%K A006512 nonn,nice,easy,new
%O A006512 1,1
%A A006512 N. J. A. Sloane (njas(AT)research.att.com).
%E A006512 More terms from Larry Reeves (larryr(AT)acm.org), Dec 04 2000

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