1,1
a(5)=7^11=1977326743.
a(7)=17*19=323,
etc.
Cf. A141287, A141261, A143678..
Sequence in context: A089678 A072712 A046476 this_sequence A143712 A078682 A075174
Adjacent sequences: A141183 A141184 A141185 this_sequence A141187 A141188 A141189
nonn
Juri-Stepan Gerasimov (2stepan(AT)rambler.ru), Nov 08 2008
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