[seqfan] Re: N for which Landau's function doesn't give a signature leader

[Sean A. Irvine]

Yes, you are right, I was looking at the wrong row when comparing the
output.
I agree a(29) really should be 2520.
I will message Chai Wah Wu about the discrepancy.

Sean.


On Sun, 9 Oct 2022 at 14:06, Tim Peters <tim.peters at gmail.com> wrote:

> [Don Reble]
> >     I doubt Chai Wah Wu's Python program for A000793.
> >     Can someone test whether it computes a(29) correctly?
>
> Here are the values "near there" it computes:
>
> 26 1260
> 27 1540
> 28 2310
> 29 2310
> 30 4620
> 31 4620
>
> As you noted later, at 29 the result should be 2520 instead. I expect
> the other person who replied made an "off by one eyeball error" when
> saying it was correct.
>
> FWIW, I doubt it's off due to a coding error, but instead that the
> author's analysis of the problem was simply wrong. The algorithm coded
> is far too simple to be correct ;-)
>
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