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Table of n, a(n) for n=1..73.
Cf. A001223, A002386, A005250, A053695.
Sequence in context: A284103 A151674 A297968 * A285214 A285340 A252798
Adjacent sequences: A242997 A242998 A242999 * A243001 A243002 A243003
Farideh Firoozbakht, May 31 2014