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Table of n, a(n) for n=0..30.
Cf. A045918, A047842.
Sequence in context: A075814 A235228 A157947 * A033674 A043526 A031500
Adjacent sequences: A097596 A097597 A097598 * A097600 A097601 A097602
Odimar Fabeny, Aug 29 2004