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%I
%S 5,23,37,47,67,71,73,97,113,191,199,223,233,277,281,283,307,317,347,
%T 349,353,457,467,613,617,619,641,643,647,821,829,853,863,877,887,1087,
%U 1097,1277,1279,1283,1297,1307,1423,1433,1447,1451,1453,1481,1493,1607,1609
%N Primes occurring in exactly one prime triple (p,q,r) with p<q<r=p+6.
%C A098418(a(n)) = 1; subsequence of A098420.
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/PrimeTriplet.html">Prime Triplet</a>
%Y Cf. A098419, A098422, A098423.
%K nonn
%O 1,1
%A _Reinhard Zumkeller_, Sep 07 2004
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