1,1
Select[Prime[Range[200]], PrimeQ[20#+3]&&PrimeQ[20#-3]&]
Adjacent sequences: A106006 A106007 A106008 this_sequence A106010 A106011 A106012
Sequence in context: A102719 A075470 A049779 this_sequence A079780 A048871 A087250
nonn
Zak Seidov (zakseidov(AT)yahoo.com), May 05 2005
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