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Search: id:A154941
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| 3, 5, 11, 131, 419, 1409, 2069, 3449, 3761, 3911, 6899, 7079, 7151, 9539, 9791, 10529, 10691, 11321, 11831, 14741, 15269, 17291, 22079, 27281, 27809, 30449, 34439, 45131, 48479, 52289, 54251, 64439, 70901, 75389, 78839, 85691, 101411, 102911
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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2*3+1=7, 5*2+1=11, ...
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MATHEMATICA
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lst={}; Do[p=Prime[n]; If[PrimeQ[(p-1)*(p+1)-p]&&PrimeQ[(p-1)*(p+1)+p], If[PrimeQ[p*2+1], AppendTo[lst, p]]], {n, 8!}]; lst
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CROSSREFS
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Cf. A053184, A038872, A141158, A038615, A098058, A038936, A089270, A140559, A154939
Sequence in context: A062530 A089628 A083841 this_sequence A062601 A038198 A079037
Adjacent sequences: A154938 A154939 A154940 this_sequence A154942 A154943 A154944
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KEYWORD
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nonn
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AUTHOR
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Vladimir Orlovsky (4vladimir(AT)gmail.com), Jan 17 2009
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