[seqfan] Re: Is This Sequence Ever Negative?
Ray Chandler
rayjchandler at sbcglobal.net
Sun Mar 7 16:27:56 CET 2010
a(647)=-1 is first negative, lots more follow.
Ray
> -----Original Message-----
> From: seqfan-bounces at list.seqfan.eu
> [mailto:seqfan-bounces at list.seqfan.eu] On Behalf Of Leroy Quet
> Sent: Sunday, March 07, 2010 8:46 AM
> To: seqfan at seqfan.eu
> Subject: [seqfan] Is This Sequence Ever Negative?
>
> Is sequence A175150 ever negative?
>
> In other words, is there an n where
> (the number of k <= n where d(k) < d(k-1)) is greater than
> (the number of k <= n where d(k) > d(k-1)),
>
> where d(k) is the number of divisors of k?
>
> PS: I see that I made a typo in the comment line to A175150.
> I'll go fix that now.
>
> Thanks,
> Leroy Quet
>
>
> [ ( [ ([( [ ( ([[o0Oo0Ooo0Oo(0)oO0ooO0oO0o]]) ) ] )]) ] ) ]
>
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>
>
>
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