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Table of n, a(n) for n=1..51.
Sequence in context: A029478 A252021 A216101 * A124199 A119869 A272200
Adjacent sequences: A096452 A096453 A096454 * A096456 A096457 A096458
Yasutoshi Kohmoto, Aug 12 2004
More terms and better definition from Joshua Zucker, May 21 2006