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Is this a multiplicative function?
Table of n, a(n) for n=1..31.
C. Noebauer, Home page [Archived copy as of 2008 from web.archive.org]
Cf. A037289, A037291, A127708.
Sequence in context: A008477 A222639 A184729 * A113196 A037291 A222317
Adjacent sequences: A127704 A127705 A127706 * A127708 A127709 A127710
Hugues Randriam (randriam(AT)enst.fr), Jan 24 2007