[seqfan] Re: A174695 keyword sign

David Seal david.j.seal at gwynmop.com
Fri May 3 14:24:28 CEST 2019


Fairly minor, but according to that comment A174695(n) = A112632(n)-1, and A112632 says it first goes negative at n=23338590792. So going as far as n=23338590791 will be enough to find a negative value of A174695, but one might only need to go considerably less far if A112632 first visits 0 long before it first visits -1.

On 03 May 2019 at 01:39 israel at math.ubc.ca wrote:
> 
> 
> Did you not notice the comment by M. F. Hasler?  You need to go more than a
> little further, to somewhere around 608981813029.
> 
> 
> 
> On May 2 2019, David Rabahy wrote:
> 
> >Per http://oeis.org/wiki/Keywords, the keyword "sign" is described as
> >"Sequence contains negative numbers."  Does A174695, in fact, contain any
> >negative numbers?  I've checked through the first 100,000 primes and it
> >doesn't go negative in that range; perhaps I need to go a little further?
> >
> >
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> >
> >
> 
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