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Table of n, a(n) for n=1..68.
a(n)=A071830(n), n>1. [From R. J. Mathar, Sep 11 2008]
Sequence in context: A071537 A161396 A145256 * A071830 A167146 A020891
Adjacent sequences: A087786 A087787 A087788 * A087790 A087791 A087792
Reinhard Zumkeller, Oct 07 2003