Search: id:A130737
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%I A130737
%S A130737 419,2309,16631,17387,17597,22637,32297,49937,51239,61151,66947,122387,
%T A130737 124907,136751,148721,148931,152459,182027,183917,189251,203909,209579,
%U A130737 228521,246707,251789,291689,324617,371027,388961,408701,409289
%N A130737 Primes n such that n+2, n*(n+2)+18 and n*(n+2)+20 are also prime.
%p A130737 a:=proc(n)local p: p:=ithprime(n): if isprime(p+2)=true and isprime(p*(p+2)+18)=true 
               and isprime(p*(p+2)+20)=true then p else end if end proc: seq(a(n),
               n= 1..40000); - Emeric Deutsch (deutsch(AT)duke.poly.edu), Jul 28 
               2007
%Y A130737 Sequence in context: A142281 A142733 A060230 this_sequence A061118 A097822 
               A069064
%Y A130737 Adjacent sequences: A130734 A130735 A130736 this_sequence A130738 A130739 
               A130740
%K A130737 nonn
%O A130737 1,1
%A A130737 Ray G. Opao (1260(AT)email.com), Jul 06 2007
%E A130737 More terms from Emeric Deutsch (deutsch(AT)duke.poly.edu), Jul 28 2007

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