[seqfan] Re: Binary Complement Sequences

[Tom Duff]

I have them all:
819991 87037147311
820560 25996066240

829974 4327838170

836375 4327838183

836666 1212877574

875089 1246707601

876382 1246707550

879731 1246707639

973544 1246707556

977281 1246707553

980258 1246707530

I haven't actually finished computing 819991, but it is known to be one
less than 425720. I'm letting it run as a check on 425720.


On Thu, Dec 29, 2022 at 10:18 AM Tim Peters <tim.peters at gmail.com> wrote:

> FYI, with 425720 resolved, there are only 11 numbers <= million whose
> status remains unknown to me:
>
> 819991
> 820560
> 829974
> 836375
> 836666
> 875089
> 876382
> 879731
> 973544
> 977281
> 980258
>
> All of those require more than 670 million steps to reach 0 (if ever).
> 819991 requires more than 25.9 billion steps.
>
> --
> Seqfan Mailing list - http://list.seqfan.eu/
>