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Table of n, a(n) for n=1..18.
Sequence in context: A144023 A018164 A025052 * A098197 A175941 A203175
Adjacent sequences: A142581 A142582 A142583 * A142585 A142586 A142587
Paul Curtz, Sep 21 2008
Edited by Omar E. Pol and N. J. A. Sloane, Jan 06 2009