infinitary MoebiusMu

Meeussen Wouter (bkarnd) wouter.meeussen at
Mon Sep 17 18:43:21 CEST 2001

sequel to "what is the value "60" doing in A000028 ??"

more simply, this 'different construction' is

which says simply that iMu[n]= Mu[n] if Mu[n]<>0,
and if Mu[n]=0, then iMu[n] is -1 iff the sum of the binary digits of the
prime exponents
 (in its prime decomposition) is odd.

And yet the Moebius inversion formula seems to (also) hold for these iMu[].

Cute, no?

Wouter Meeussen
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mail: wouter.meeussen at

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