Search: id:A136240
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%I A136240
%S A136240 1,2,6,12,66,78,138,150,162,192,336,348,378,456,540,612,642,726,768,918,
%T A136240 990,1020,1092,1116,1200,1230,1380,1422,1548,1566,1596,1620,1692,1746,
%U A136240 1788,1800,1932,1986,2010,2016,2112,2136,2142,2238,2280,2556,2646
%N A136240 Numbers n among A006093 such that n^2 + n + 1 is prime.
%C A136240 See A074268 for the primes associated with a(n).
%F A136240 a(n) = A0065508(n) - 1.
%Y A136240 Cf. A136241.
%Y A136240 Sequence in context: A069047 A095921 A106037 this_sequence A090747 A076220 
               A107763
%Y A136240 Adjacent sequences: A136237 A136238 A136239 this_sequence A136241 A136242 
               A136243
%K A136240 nonn
%O A136240 1,2
%A A136240 Lekraj Beedassy (blekraj(AT)yahoo.com), Dec 23 2007

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