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Table of n, a(n) for n=1..34.
Cf. A000040, A001608, A050443.
Sequence in context: A220786 A067920 A072074 * A153950 A153947 A260878
Adjacent sequences: A052335 A052336 A052337 * A052339 A052340 A052341
Christian G. Bower, Dec 23 1999