Search: id:A107685
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%I A107685
%S A107685 2,3,5,3,7,5,13,11,19,17,31,29,43,41,61,59,73,71,103,101,109,107,139,
%T A107685 137,151,149,181,179,193,191,199,197,229,227,241,239,271,269,283,281,
%U A107685 313,311,349,347,421,419,433,431,463,461,523,521,571,569,601,599,619
%N A107685 Swap the order of primes in twin prime pairs. Also, from 5th term (which 
               is 7) on, the primes of A107323.
%C A107685 Included here as a twin prime pair is (2,3).
%H A107685 Leroy Quet, <a href="http://www.prism-of-spirals.net/">Home Page</a> 
               (listed in lieu of email address)
%p A107685 c:=0: for n from 3 to 1000 do if isprime(n)=true and isprime(n+2)=true 
               then c:=c+2: a[c-1]:=n+2: a[c]:=n: fi od: 2,3,seq(a[n],n=1..c); (Deutsch)
%Y A107685 Cf. A107323, A107472.
%Y A107685 Sequence in context: A117369 A117366 A073482 this_sequence A161984 A072987 
               A125677
%Y A107685 Adjacent sequences: A107682 A107683 A107684 this_sequence A107686 A107687 
               A107688
%K A107685 nonn
%O A107685 1,1
%A A107685 Leroy Quet Jun 16 2005
%E A107685 More terms from Emeric Deutsch (deutsch(AT)duke.poly.edu), Jun 19 2005

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