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This sequence is related to the Riemann zeta function (Very similar to A002410).
Table of n, a(n) for n=1..59.
Index entries for zeta function
Cf. A002410, A161914, A162781, A162782, A162783.
Sequence in context: A133185 A013629 A234802 * A002410 A108606 A129497
Adjacent sequences: A162777 A162778 A162779 * A162781 A162782 A162783
Omar E. Pol, Jul 13 2009