1,1
G. P. Michon, Never Back to -1.
a(13)=181 because A077020(26)=181 is the 13th prime value found in that sequence; A001607(26)=-181.
Sequence in context: A130141 A130142 A130139 this_sequence A134487 A064537 A023899
Adjacent sequences: A101085 A101086 A101087 this_sequence A101089 A101090 A101091
nonn
Gerard P. Michon (g.michon(AT)att.net), Dec 01 2004
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