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Very close to 2^n
Table of n, a(n) for n=0..29.
Sequence in context: A275073 A264701 A195904 * A023421 A098051 A084637
Adjacent sequences: A101330 A101331 A101332 * A101334 A101335 A101336
Jorge Coveiro (jorgecoveiro(AT)yahoo.com), Dec 24 2004
Comments moved to new sequence A195904 by Jeremy Gardiner, Sep 25 2011