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Table of n, a(n) for n=1..18.
Sequence in context: A138431 A175874 A006223 * A241463 A284766 A023012
Adjacent sequences: A091300 A091301 A091302 * A091304 A091305 A091306
N. J. A. Sloane, Feb 21 2004
More terms from David Wasserman, Feb 28 2006